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Annotation of OpenXM_contrib2/asir2018/builtin/dp.c, Revision 1.29

1.1       noro        1: /*
                      2:  * Copyright (c) 1994-2000 FUJITSU LABORATORIES LIMITED
                      3:  * All rights reserved.
                      4:  *
                      5:  * FUJITSU LABORATORIES LIMITED ("FLL") hereby grants you a limited,
                      6:  * non-exclusive and royalty-free license to use, copy, modify and
                      7:  * redistribute, solely for non-commercial and non-profit purposes, the
                      8:  * computer program, "Risa/Asir" ("SOFTWARE"), subject to the terms and
                      9:  * conditions of this Agreement. For the avoidance of doubt, you acquire
                     10:  * only a limited right to use the SOFTWARE hereunder, and FLL or any
                     11:  * third party developer retains all rights, including but not limited to
                     12:  * copyrights, in and to the SOFTWARE.
                     13:  *
                     14:  * (1) FLL does not grant you a license in any way for commercial
                     15:  * purposes. You may use the SOFTWARE only for non-commercial and
                     16:  * non-profit purposes only, such as academic, research and internal
                     17:  * business use.
                     18:  * (2) The SOFTWARE is protected by the Copyright Law of Japan and
                     19:  * international copyright treaties. If you make copies of the SOFTWARE,
                     20:  * with or without modification, as permitted hereunder, you shall affix
                     21:  * to all such copies of the SOFTWARE the above copyright notice.
                     22:  * (3) An explicit reference to this SOFTWARE and its copyright owner
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                     24:  * results obtained by use of the SOFTWARE.
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                     27:  * for such modification or the source code of the modified part of the
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                     29:  *
                     30:  * THE SOFTWARE IS PROVIDED AS IS WITHOUT ANY WARRANTY OF ANY KIND. FLL
                     31:  * MAKES ABSOLUTELY NO WARRANTIES, EXPRESSED, IMPLIED OR STATUTORY, AND
                     32:  * EXPRESSLY DISCLAIMS ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS
                     33:  * FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT OF THIRD PARTIES'
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                     40:  * ARISING OUT OF OR RELATING TO THE SOFTWARE OR THIS AGREEMENT, DAMAGES
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                     45:  * DEVELOPER SHALL HAVE NO LIABILITY IN CONNECTION WITH THE USE,
                     46:  * PERFORMANCE OR NON-PERFORMANCE OF THE SOFTWARE.
                     47:  *
1.29    ! noro       48:  * $OpenXM: OpenXM_contrib2/asir2018/builtin/dp.c,v 1.28 2021/02/18 05:35:01 noro Exp $
1.1       noro       49: */
                     50: #include "ca.h"
                     51: #include "base.h"
                     52: #include "parse.h"
                     53:
                     54: extern int dp_fcoeffs;
                     55: extern int dp_nelim;
                     56: extern int dp_order_pair_length;
                     57: extern struct order_pair *dp_order_pair;
                     58: extern struct order_spec *dp_current_spec;
                     59: extern struct modorder_spec *dp_current_modspec;
                     60: extern int nd_rref2;
                     61:
1.22      noro       62: extern int do_weyl;
1.1       noro       63:
1.29    ! noro       64: void Pdp_monomial_hilbert_poincare(),Pdp_monomial_hilbert_poincare_incremental();
1.1       noro       65: void Pdp_sort();
                     66: void Pdp_mul_trunc(),Pdp_quo();
                     67: void Pdp_ord(), Pdp_ptod(), Pdp_dtop(), Phomogenize();
                     68: void Pdp_ptozp(), Pdp_ptozp2(), Pdp_red(), Pdp_red2(), Pdp_lcm(), Pdp_redble();
                     69: void Pdp_sp(), Pdp_hm(), Pdp_ht(), Pdp_hc(), Pdp_rest(), Pdp_td(), Pdp_sugar();
                     70: void Pdp_set_sugar();
                     71: void Pdp_cri1(),Pdp_cri2(),Pdp_subd(),Pdp_mod(),Pdp_red_mod(),Pdp_tdiv();
                     72: void Pdp_prim(),Pdp_red_coef(),Pdp_mag(),Pdp_set_kara(),Pdp_rat();
                     73: void Pdp_nf(),Pdp_true_nf(),Pdp_true_nf_marked(),Pdp_true_nf_marked_mod();
                     74:
                     75: void Pdp_true_nf_and_quotient(),Pdp_true_nf_and_quotient_mod();
                     76: void Pdp_true_nf_and_quotient_marked(),Pdp_true_nf_and_quotient_marked_mod();
                     77:
                     78: void Pdp_nf_mod(),Pdp_true_nf_mod();
                     79: void Pdp_criB(),Pdp_nelim();
                     80: void Pdp_minp(),Pdp_sp_mod();
                     81: void Pdp_homo(),Pdp_dehomo();
1.26      noro       82: void Pdpm_homo(),Pdpm_dehomo(),Pdpm_mod();
1.1       noro       83: void Pdp_gr_mod_main(),Pdp_gr_f_main();
                     84: void Pdp_gr_main(),Pdp_gr_hm_main(),Pdp_gr_d_main(),Pdp_gr_flags();
                     85: void Pdp_interreduce();
                     86: void Pdp_f4_main(),Pdp_f4_mod_main(),Pdp_f4_f_main();
                     87: void Pdp_gr_print();
                     88: void Pdp_mbase(),Pdp_lnf_mod(),Pdp_nf_tab_mod(),Pdp_mdtod(), Pdp_nf_tab_f();
                     89: void Pdp_vtoe(), Pdp_etov(), Pdp_dtov(), Pdp_idiv(), Pdp_sep();
                     90: void Pdp_cont();
                     91: void Pdp_gr_checklist();
                     92: void Pdp_ltod(),Pdpv_ord(),Pdpv_ht(),Pdpv_hm(),Pdpv_hc();
1.17      noro       93: void Pdpm_ltod(),Pdpm_dtol(),Pdpm_set_schreyer(),Pdpm_nf(),Pdpm_weyl_nf(),Pdpm_sp(),Pdpm_weyl_sp(),Pdpm_nf_and_quotient(),Pdpm_nf_and_quotient2();
1.18      noro       94: void Pdpm_schreyer_frame(),Pdpm_set_schreyer_level();
1.19      noro       95: void Pdpm_list_to_array(),Pdpm_sp_nf(),Pdpm_insert_to_zlist();
1.21      noro       96: void Pdpm_hm(),Pdpm_ht(),Pdpm_hc(),Pdpm_hp(),Pdpm_rest(),Pdpm_shift(),Pdpm_split(),Pdpm_extract(),Pdpm_sort(),Pdpm_dptodpm(),Pdpm_redble();
1.15      noro       97: void Pdpm_schreyer_base(),Pdpm_simplify_syz(),Pdpm_td();
1.21      noro       98: void Pdpm_remove_cont();
1.1       noro       99:
                    100: void Pdp_weyl_red();
                    101: void Pdp_weyl_sp();
                    102:
                    103: void Pdp_weyl_nf(),Pdp_weyl_nf_mod();
                    104: void Pdp_weyl_true_nf_and_quotient(),Pdp_weyl_true_nf_and_quotient_mod();
                    105: void Pdp_weyl_true_nf_and_quotient_marked(),Pdp_weyl_true_nf_and_quotient_marked_mod();
                    106:
                    107: void Pdp_weyl_gr_main(),Pdp_weyl_gr_mod_main(),Pdp_weyl_gr_f_main();
                    108: void Pdp_weyl_f4_main(),Pdp_weyl_f4_mod_main(),Pdp_weyl_f4_f_main();
                    109: void Pdp_weyl_mul(),Pdp_weyl_mul_mod(),Pdp_weyl_act();
                    110: void Pdp_weyl_set_weight();
                    111: void Pdp_set_weight(),Pdp_set_top_weight(),Pdp_set_module_weight();
                    112: void Pdp_nf_f(),Pdp_weyl_nf_f();
                    113: void Pdpm_nf_f(),Pdpm_weyl_nf_f();
                    114: void Pdp_lnf_f();
                    115: void Pnd_gr(),Pnd_gr_trace(),Pnd_f4(),Pnd_f4_trace();
1.25      noro      116: void Pnd_sba(),Pnd_sba_f4();
1.27      noro      117: void Pnd_weyl_sba();
1.1       noro      118: void Pnd_gr_postproc(), Pnd_weyl_gr_postproc();
                    119: void Pnd_gr_recompute_trace(), Pnd_btog();
                    120: void Pnd_weyl_gr(),Pnd_weyl_gr_trace();
                    121: void Pnd_nf(),Pnd_weyl_nf();
                    122: void Pdp_initial_term();
                    123: void Pdp_order();
                    124: void Pdp_inv_or_split();
                    125: void Pdp_compute_last_t();
                    126: void Pdp_compute_last_w();
                    127: void Pdp_compute_essential_df();
                    128: void Pdp_get_denomlist();
                    129: void Pdp_symb_add();
                    130: void Pdp_mono_raddec();
                    131: void Pdp_mono_reduce();
                    132: void Pdp_rref2(),Psumi_updatepairs(),Psumi_symbolic();
                    133:
                    134: LIST dp_initial_term();
                    135: LIST dp_order();
                    136: void parse_gr_option(LIST f,NODE opt,LIST *v,Num *homo,
                    137:   int *modular,struct order_spec **ord);
                    138: NODE dp_inv_or_split(NODE gb,DP f,struct order_spec *spec, DP *inv);
                    139:
                    140: LIST remove_zero_from_list(LIST);
                    141:
                    142: struct ftab dp_tab[] = {
                    143:   /* content reduction */
                    144:   {"dp_ptozp",Pdp_ptozp,1},
                    145:   {"dp_ptozp2",Pdp_ptozp2,2},
                    146:   {"dp_prim",Pdp_prim,1},
                    147:   {"dp_red_coef",Pdp_red_coef,2},
                    148:   {"dp_cont",Pdp_cont,1},
1.21      noro      149:   {"dpm_remove_cont",Pdpm_remove_cont,1},
1.1       noro      150:
                    151: /* polynomial ring */
                    152:   /* special operations */
                    153:   {"dp_mul_trunc",Pdp_mul_trunc,3},
                    154:   {"dp_quo",Pdp_quo,2},
                    155:
                    156:   /* s-poly */
                    157:   {"dp_sp",Pdp_sp,2},
                    158:   {"dp_sp_mod",Pdp_sp_mod,3},
                    159:
                    160:   /* m-reduction */
                    161:   {"dp_red",Pdp_red,3},
                    162:   {"dp_red_mod",Pdp_red_mod,4},
                    163:
                    164:   /* normal form */
                    165:   {"dp_nf",Pdp_nf,4},
                    166:   {"dp_nf_mod",Pdp_nf_mod,5},
                    167:   {"dp_nf_f",Pdp_nf_f,4},
1.9       noro      168:   {"dpm_nf_and_quotient",Pdpm_nf_and_quotient,-3},
1.17      noro      169:   {"dpm_nf_and_quotient2",Pdpm_nf_and_quotient2,-3},
1.11      noro      170:   {"dpm_nf_f",Pdpm_nf_f,-4},
                    171:   {"dpm_weyl_nf_f",Pdpm_weyl_nf_f,-4},
                    172:   {"dpm_nf",Pdpm_nf,-4},
1.1       noro      173:   {"dpm_sp",Pdpm_sp,2},
                    174:   {"dpm_weyl_sp",Pdpm_weyl_sp,2},
                    175:
                    176:   {"dp_true_nf",Pdp_true_nf,4},
                    177:   {"dp_true_nf_mod",Pdp_true_nf_mod,5},
                    178:   {"dp_true_nf_marked",Pdp_true_nf_marked,4},
                    179:   {"dp_true_nf_marked_mod",Pdp_true_nf_marked_mod,5},
                    180:
                    181:   {"dp_true_nf_and_quotient",Pdp_true_nf_and_quotient,3},
                    182:   {"dp_true_nf_and_quotient_mod",Pdp_true_nf_and_quotient_mod,4},
                    183:   {"dp_true_nf_and_quotient_marked",Pdp_true_nf_and_quotient_marked,4},
                    184:   {"dp_true_nf_and_quotient_marked_mod",Pdp_true_nf_and_quotient_marked_mod,5},
                    185:
                    186:   {"dp_lnf_mod",Pdp_lnf_mod,3},
                    187:   {"dp_nf_tab_f",Pdp_nf_tab_f,2},
                    188:   {"dp_nf_tab_mod",Pdp_nf_tab_mod,3},
                    189:   {"dp_lnf_f",Pdp_lnf_f,2},
                    190:
                    191:   /* Buchberger algorithm */
                    192:   {"dp_gr_main",Pdp_gr_main,-5},
                    193:   {"dp_interreduce",Pdp_interreduce,3},
                    194:   {"dp_gr_mod_main",Pdp_gr_mod_main,5},
                    195:   {"dp_gr_f_main",Pdp_gr_f_main,4},
                    196:   {"dp_gr_checklist",Pdp_gr_checklist,2},
                    197:   {"nd_f4",Pnd_f4,-4},
                    198:   {"nd_gr",Pnd_gr,-4},
1.24      noro      199:   {"nd_sba",Pnd_sba,-4},
1.27      noro      200:   {"nd_weyl_sba",Pnd_weyl_sba,-4},
1.25      noro      201:   {"nd_sba_f4",Pnd_sba_f4,-4},
1.1       noro      202:   {"nd_gr_trace",Pnd_gr_trace,-5},
                    203:   {"nd_f4_trace",Pnd_f4_trace,-5},
                    204:   {"nd_gr_postproc",Pnd_gr_postproc,5},
                    205:   {"nd_gr_recompute_trace",Pnd_gr_recompute_trace,5},
                    206:   {"nd_btog",Pnd_btog,-6},
                    207:   {"nd_weyl_gr_postproc",Pnd_weyl_gr_postproc,5},
                    208:   {"nd_weyl_gr",Pnd_weyl_gr,-4},
                    209:   {"nd_weyl_gr_trace",Pnd_weyl_gr_trace,-5},
                    210:   {"nd_nf",Pnd_nf,5},
                    211:   {"nd_weyl_nf",Pnd_weyl_nf,5},
                    212:
                    213:   /* F4 algorithm */
                    214:   {"dp_f4_main",Pdp_f4_main,3},
                    215:   {"dp_f4_mod_main",Pdp_f4_mod_main,4},
                    216:
                    217: /* weyl algebra */
                    218:   /* multiplication */
                    219:   {"dp_weyl_mul",Pdp_weyl_mul,2},
                    220:   {"dp_weyl_mul_mod",Pdp_weyl_mul_mod,3},
                    221:   {"dp_weyl_act",Pdp_weyl_act,2},
                    222:
                    223:   /* s-poly */
                    224:   {"dp_weyl_sp",Pdp_weyl_sp,2},
                    225:
                    226:   /* m-reduction */
                    227:   {"dp_weyl_red",Pdp_weyl_red,3},
                    228:
                    229:   /* normal form */
                    230:   {"dp_weyl_nf",Pdp_weyl_nf,4},
1.11      noro      231:   {"dpm_weyl_nf",Pdpm_weyl_nf,-4},
1.1       noro      232:   {"dp_weyl_nf_mod",Pdp_weyl_nf_mod,5},
                    233:   {"dp_weyl_nf_f",Pdp_weyl_nf_f,4},
                    234:
                    235:   {"dp_weyl_true_nf_and_quotient",Pdp_weyl_true_nf_and_quotient,3},
                    236:   {"dp_weyl_true_nf_and_quotient_mod",Pdp_weyl_true_nf_and_quotient_mod,4},
                    237:   {"dp_weyl_true_nf_and_quotient_marked",Pdp_weyl_true_nf_and_quotient_marked,4},
                    238:   {"dp_weyl_true_nf_and_quotient_marked_mod",Pdp_weyl_true_nf_and_quotient_marked_mod,5},
                    239:
                    240:
                    241:   /* Buchberger algorithm */
                    242:   {"dp_weyl_gr_main",Pdp_weyl_gr_main,-5},
                    243:   {"dp_weyl_gr_mod_main",Pdp_weyl_gr_mod_main,5},
                    244:   {"dp_weyl_gr_f_main",Pdp_weyl_gr_f_main,4},
                    245:
                    246:   /* F4 algorithm */
                    247:   {"dp_weyl_f4_main",Pdp_weyl_f4_main,3},
                    248:   {"dp_weyl_f4_mod_main",Pdp_weyl_f4_mod_main,4},
                    249:
1.3       noro      250:   /* Hilbert function */
                    251:   {"dp_monomial_hilbert_poincare",Pdp_monomial_hilbert_poincare,2},
1.29    ! noro      252:   {"dp_monomial_hilbert_poincare_incremental",Pdp_monomial_hilbert_poincare_incremental,3},
1.3       noro      253:
1.1       noro      254:   /* misc */
                    255:   {"dp_inv_or_split",Pdp_inv_or_split,3},
                    256:   {"dp_set_weight",Pdp_set_weight,-1},
                    257:   {"dp_set_module_weight",Pdp_set_module_weight,-1},
                    258:   {"dp_set_top_weight",Pdp_set_top_weight,-1},
                    259:   {"dp_weyl_set_weight",Pdp_weyl_set_weight,-1},
                    260:
                    261:   {"dp_get_denomlist",Pdp_get_denomlist,0},
                    262:   {0,0,0},
                    263: };
                    264:
                    265: struct ftab dp_supp_tab[] = {
                    266:   /* setting flags */
                    267:   {"dp_sort",Pdp_sort,1},
                    268:   {"dp_ord",Pdp_ord,-1},
1.9       noro      269:   {"dpm_set_schreyer",Pdpm_set_schreyer,-1},
1.18      noro      270:   {"dpm_set_schreyer_level",Pdpm_set_schreyer_level,1},
                    271:   {"dpm_schreyer_frame",Pdpm_schreyer_frame,1},
1.1       noro      272:   {"dpv_ord",Pdpv_ord,-2},
                    273:   {"dp_set_kara",Pdp_set_kara,-1},
                    274:   {"dp_nelim",Pdp_nelim,-1},
                    275:   {"dp_gr_flags",Pdp_gr_flags,-1},
                    276:   {"dp_gr_print",Pdp_gr_print,-1},
                    277:
                    278:   /* converters */
                    279:   {"homogenize",Phomogenize,3},
                    280:   {"dp_ptod",Pdp_ptod,-2},
                    281:   {"dp_dtop",Pdp_dtop,2},
                    282:   {"dp_homo",Pdp_homo,1},
                    283:   {"dp_dehomo",Pdp_dehomo,1},
                    284:   {"dp_etov",Pdp_etov,1},
                    285:   {"dp_vtoe",Pdp_vtoe,1},
                    286:   {"dp_dtov",Pdp_dtov,1},
                    287:   {"dp_mdtod",Pdp_mdtod,1},
                    288:   {"dp_mod",Pdp_mod,3},
                    289:   {"dp_rat",Pdp_rat,1},
                    290:   {"dp_ltod",Pdp_ltod,-2},
                    291:
                    292:   {"dpm_ltod",Pdpm_ltod,2},
1.9       noro      293:   {"dpm_dptodpm",Pdpm_dptodpm,2},
1.14      noro      294:   {"dpm_dtol",Pdpm_dtol,2},
1.16      noro      295:   {"dpm_homo",Pdpm_homo,1},
                    296:   {"dpm_dehomo",Pdpm_dehomo,1},
1.26      noro      297:   {"dpm_mod",Pdpm_mod,2},
1.1       noro      298:
                    299:   /* criteria */
                    300:   {"dp_cri1",Pdp_cri1,2},
                    301:   {"dp_cri2",Pdp_cri2,2},
                    302:   {"dp_criB",Pdp_criB,3},
                    303:
                    304:   /* simple operation */
                    305:   {"dp_subd",Pdp_subd,2},
                    306:   {"dp_lcm",Pdp_lcm,2},
                    307:   {"dp_hm",Pdp_hm,1},
                    308:   {"dp_ht",Pdp_ht,1},
                    309:   {"dp_hc",Pdp_hc,1},
                    310:   {"dpv_hm",Pdpv_hm,1},
                    311:   {"dpv_ht",Pdpv_ht,1},
                    312:   {"dpv_hc",Pdpv_hc,1},
                    313:   {"dpm_hm",Pdpm_hm,1},
                    314:   {"dpm_ht",Pdpm_ht,1},
                    315:   {"dpm_hc",Pdpm_hc,1},
1.10      noro      316:   {"dpm_hp",Pdpm_hp,1},
                    317:   {"dpm_rest",Pdpm_rest,1},
1.9       noro      318:   {"dpm_shift",Pdpm_shift,2},
                    319:   {"dpm_split",Pdpm_split,2},
1.21      noro      320:   {"dpm_extract",Pdpm_extract,2},
1.9       noro      321:   {"dpm_sort",Pdpm_sort,1},
1.1       noro      322:   {"dp_rest",Pdp_rest,1},
                    323:   {"dp_initial_term",Pdp_initial_term,1},
                    324:   {"dp_order",Pdp_order,1},
                    325:   {"dp_symb_add",Pdp_symb_add,2},
                    326:
                    327:   /* degree and size */
                    328:   {"dp_td",Pdp_td,1},
                    329:   {"dp_mag",Pdp_mag,1},
                    330:   {"dp_sugar",Pdp_sugar,1},
                    331:   {"dp_set_sugar",Pdp_set_sugar,2},
1.15      noro      332:   {"dpm_td",Pdpm_td,1},
1.1       noro      333:
                    334:   /* misc */
                    335:   {"dp_mbase",Pdp_mbase,1},
                    336:   {"dp_redble",Pdp_redble,2},
1.9       noro      337:   {"dpm_redble",Pdpm_redble,2},
1.1       noro      338:   {"dp_sep",Pdp_sep,2},
                    339:   {"dp_idiv",Pdp_idiv,2},
                    340:   {"dp_tdiv",Pdp_tdiv,2},
                    341:   {"dp_minp",Pdp_minp,2},
                    342:   {"dp_compute_last_w",Pdp_compute_last_w,5},
                    343:   {"dp_compute_last_t",Pdp_compute_last_t,5},
                    344:   {"dp_compute_essential_df",Pdp_compute_essential_df,2},
                    345:   {"dp_mono_raddec",Pdp_mono_raddec,2},
                    346:   {"dp_mono_reduce",Pdp_mono_reduce,2},
1.11      noro      347:   {"dpm_schreyer_base",Pdpm_schreyer_base,1},
1.19      noro      348:   {"dpm_list_to_array",Pdpm_list_to_array,1},
                    349:   {"dpm_sp_nf",Pdpm_sp_nf,4},
                    350:   {"dpm_insert_to_zlist",Pdpm_insert_to_zlist,3},
1.12      noro      351:   {"dpm_simplify_syz",Pdpm_simplify_syz,2},
1.1       noro      352:
                    353:   {"dp_rref2",Pdp_rref2,2},
                    354:   {"sumi_updatepairs",Psumi_updatepairs,3},
                    355:   {"sumi_symbolic",Psumi_symbolic,5},
                    356:
                    357:   {0,0,0}
                    358: };
                    359:
                    360: NODE compute_last_w(NODE g,NODE gh,int n,int **v,int row1,int **m1,int row2,int **m2);
                    361: Q compute_last_t(NODE g,NODE gh,Q t,VECT w1,VECT w2,NODE *homo,VECT *wp);
                    362:
1.3       noro      363: int comp_by_tdeg(DP *a,DP *b)
                    364: {
                    365:   int da,db;
                    366:
                    367:   da = BDY(*a)->dl->td;
                    368:   db = BDY(*b)->dl->td;
                    369:   if ( da>db ) return 1;
                    370:   else if ( da<db ) return -1;
                    371:   else return 0;
                    372: }
                    373:
                    374: void dl_print(DL d,int n)
                    375: {
                    376:   int i;
                    377:
                    378:   printf("<<");
                    379:   for ( i = 0; i < n; i++ )
                    380:     printf("%d ",d->d[i]);
                    381:   printf(">>\n");
                    382: }
                    383:
                    384: int simple_check(VECT b,int nv)
                    385: {
                    386:   int n,i,j;
                    387:   DL *p;
                    388:
                    389:   n = b->len; p = (DL *)b->body;
                    390:   for ( i = 0; i < n; i++ ) {
                    391:     for ( j = 0; j < nv; j++ ) {
                    392:       if ( p[i]->d[j] ) break;
                    393:     }
                    394:     if ( p[i]->d[j] != p[i]->td ) return 0;
                    395:   }
                    396:   return 1;
                    397: }
                    398:
                    399: void make_reduced(VECT b,int nv)
                    400: {
                    401:   int n,i,j;
                    402:   DL *p;
                    403:   DL pi;
                    404:
                    405:   n = b->len;
                    406:   p = (DL *)BDY(b);
                    407:   for ( i = 0; i < n; i++ ) {
                    408:     pi = p[i];
                    409:     if ( !pi ) continue;
                    410:     for ( j = 0; j < n; j++ )
                    411:       if ( i != j && p[j] && _dl_redble(pi,p[j],nv) ) p[j] = 0;
                    412:   }
                    413:   for ( i = j = 0; i < n; i++ )
                    414:     if ( p[i] ) p[j++] = p[i];
                    415:   b->len = j;
                    416: }
                    417:
                    418: void make_reduced2(VECT b,int k,int nv)
                    419: {
                    420:   int n,i,j,l;
                    421:   DL *p;
                    422:   DL pi;
                    423:
                    424:   n = b->len;
                    425:   p = (DL *)BDY(b);
                    426:   for ( i = l = k; i < n; i++ ) {
                    427:     pi = p[i];
                    428:     for ( j = 0; j < k; j++ )
                    429:       if ( _dl_redble(p[j],pi,nv) ) break;
                    430:     if ( j == k )
                    431:      p[l++] = pi;
                    432:   }
                    433:   b->len = l;
                    434: }
                    435:
                    436: int i_all,i_simple;
                    437:
                    438: P mhp_simple(VECT b,VECT x,P t)
                    439: {
                    440:   int n,i,j,nv;
                    441:   DL *p;
                    442:   P hp,mt,s,w;
                    443:   Z z;
                    444:
                    445:   n = b->len; nv = x->len; p = (DL *)BDY(b);
                    446:   hp = (P)ONE;
                    447:   for ( i = 0; i < n; i++ ) {
                    448:     for ( j = 0; j < nv; j++ )
                    449:       if ( p[i]->d[j] ) break;
                    450:     STOZ(p[i]->d[j],z);
                    451:     chsgnp(t,&mt); mt->dc->d =z;
                    452:     addp(CO,mt,(P)ONE,&s); mulp(CO,hp,s,&w); hp = w;
                    453:   }
                    454:   return hp;
                    455: }
                    456:
                    457: struct oEGT eg_comp;
                    458:
                    459: void mhp_rec(VECT b,VECT x,P t,P *r)
                    460: {
                    461:   int n,i,j,k,l,i2,nv,len;
                    462:   int *d;
                    463:   Z mone,z;
                    464:   DCP dc,dc1;
                    465:   P s;
                    466:   P *r2;
                    467:   DL *p,*q;
                    468:   DL pi,xj,d1;
                    469:   VECT c;
1.29    ! noro      470:   struct oEGT eg0,eg1;
1.3       noro      471:
                    472:   i_all++;
                    473:   n = b->len; nv = x->len; p = (DL *)BDY(b);
                    474:   if ( !n ) {
                    475:     r[0] = (P)ONE;
                    476:     return;
                    477:   }
                    478:   if ( n == 1 && p[0]->td == 0 )
                    479:     return;
                    480:   for ( i = 0; i < n; i++ )
                    481:     if ( p[i]->td > 1 ) break;
                    482:   if ( i == n ) {
                    483:     r[n] = (P)ONE;
                    484:     return;
                    485:   }
                    486: #if 0
                    487:   if ( simple_check(b,nv) ) {
                    488:     i_simple++;
                    489:     r[0] = mhp_simple(b,x,t);
                    490:     return;
                    491:   }
                    492: #endif
                    493:   for ( j = 0, d = p[i]->d; j < nv; j++ )
                    494:     if ( d[j] ) break;
                    495:   xj = BDY(x)[j];
                    496:   MKVECT(c,n); q = (DL *)BDY(c);
                    497:   for ( i = k = l = 0; i < n; i++ )
                    498:     if ( p[i]->d[j] ) {
                    499:       pi = p[i];
                    500:       NEWDL(d1,nv); d1->td =pi->td - 1;
                    501:       memcpy(d1->d,pi->d,nv*sizeof(int));
                    502:       d1->d[j]--;
                    503:       p[k++] = d1;
                    504:     } else
                    505:       q[l++] = p[i];
                    506:   for ( i = k, i2 = 0; i2 < l; i++, i2++ )
                    507:     p[i] = q[i2];
                    508:   /* b=(b[0]/xj,...,b[k-1]/xj,b[k],...b[n-1]) where
                    509:     b[0],...,b[k-1] are divisible by k */
                    510:   make_reduced2(b,k,nv);
                    511:   mhp_rec(b,x,t,r);
                    512:   /* c = (b[0],...,b[l-1],xj) */
                    513:   q[l] = xj; c->len = l+1;
                    514:   r2 = (P *)CALLOC(nv+1,sizeof(P));
                    515:   mhp_rec(c,x,t,r2);
                    516: // get_eg(&eg0);
                    517:   for ( i = 0; i <= nv; i++ ) {
                    518:     mulp(CO,r[i],t,&s); addp(CO,s,r2[i],&r[i]);
                    519:   }
                    520: // get_eg(&eg1); add_eg(&eg_comp,&eg0,&eg1);
                    521: }
                    522:
1.4       noro      523: /* (n+a)Cb as a polynomial of n; return (n+a)*...*(n+a-b+1) */
                    524:
                    525: P binpoly(P n,int a,int b)
                    526: {
                    527:   Z z;
                    528:   P s,r,t;
                    529:   int i;
                    530:
                    531:   STOZ(a,z); addp(CO,n,(P)z,&s); r = (P)ONE;
                    532:   for ( i = 0; i < b; i++ ) {
                    533:     mulp(CO,r,s,&t); r = t;
                    534:     subp(CO,s,(P)ONE,&t); s = t;
                    535:   }
                    536:   return r;
                    537: }
                    538:
1.9       noro      539: void ibin(unsigned long int n,unsigned long int k,Z *r);
                    540:
1.8       noro      541: void mhp_to_hf(VL vl,P hp,int n,P *plist,VECT *head,P *hf)
1.5       noro      542: {
                    543:   P tv,gcd,q,h,hphead,tt,ai,hpoly,nv,bp,w;
1.8       noro      544:   Z d,z;
1.5       noro      545:   DCP dc,topdc;
                    546:   VECT hfhead;
                    547:   int i,s,qd;
                    548:
                    549:   if ( !hp ) {
                    550:     MKVECT(hfhead,0); *head = hfhead;
1.8       noro      551:     *hf = 0;
1.5       noro      552:   } else {
                    553:     makevar("t",&tv);
                    554:     ezgcdp(CO,hp,plist[n],&gcd);
                    555:     if ( NUM(gcd) ) {
                    556:       s = n;
                    557:       q = hp;
                    558:     } else {
                    559:       s = n-ZTOS(DEG(DC(gcd)));
                    560:       divsp(CO,hp,plist[n-s],&q);
                    561:     }
                    562:     if ( NUM(q) ) qd = 0;
                    563:     else qd = ZTOS(DEG(DC(q)));
1.6       noro      564:     if ( s == 0 ) {
                    565:       MKVECT(hfhead,qd+1);
                    566:       for ( i = 0; i <= qd; i++ ) {
                    567:         coefp(q,i,(P *)&BDY(hfhead)[i]);
1.5       noro      568:       }
1.6       noro      569:       *head = hfhead;
                    570:       *hf = 0;
                    571:     } else {
                    572:       if ( qd ) {
                    573:         topdc = 0;
                    574:         for ( i = 0; i < qd; i++ ) {
                    575:           NEWDC(dc); NEXT(dc) = topdc;
1.9       noro      576:           ibin(i+s-1,s-1,(Z *)&COEF(dc));
1.6       noro      577:           STOZ(i,d); DEG(dc) = d;
                    578:           topdc = dc;
                    579:         }
                    580:         MKP(VR(tv),topdc,h);
                    581:         mulp(CO,h,q,&hphead);
                    582:       }
                    583:       MKVECT(hfhead,qd);
                    584:       for ( i = 0; i < qd; i++ )
                    585:         coefp(hphead,i,(P *)&BDY(hfhead)[i]);
                    586:       *head = hfhead;
                    587:       hpoly = 0;
                    588:       makevar("n",&nv);
                    589:       for ( i = 0; i <= qd; i++ ) {
                    590:         coefp(q,i,&ai);
                    591:         bp = binpoly(nv,s-i-1,s-1);
                    592:         mulp(CO,ai,bp,&tt);
                    593:         addp(CO,hpoly,tt,&w);
                    594:         hpoly = w;
                    595:       }
1.8       noro      596:       if ( s > 2 ) {
                    597:         factorialz(s-1,&z);
                    598:         divsp(CO,hpoly,(P)z,&tt); hpoly = tt;
                    599:       }
1.6       noro      600:       *hf = hpoly;
1.8       noro      601:       for ( i = qd-1; i >= 0; i-- ) {
                    602:         UTOZ(i,z);
                    603:         substp(CO,hpoly,VR(nv),(P)z,&tt);
                    604:         if ( cmpz((Z)tt,(Z)BDY(hfhead)[i]) ) break;
                    605:       }
                    606:       hfhead->len = i+1;
1.5       noro      607:     }
                    608:   }
                    609: }
                    610:
                    611: /* create (1,1-t,...,(1-t)^n) */
                    612:
                    613: P *mhp_prep(int n,P *tv) {
                    614:   P *plist;
                    615:   P mt,t1;
                    616:   int i;
1.29    ! noro      617:   VECT list;
1.5       noro      618:
                    619:   plist = (P *)MALLOC((n+1)*sizeof(P));
                    620:   /* t1 = 1-t */
                    621:   makevar("t",tv); chsgnp(*tv,&mt); addp(CO,mt,(P)ONE,&t1);
                    622:   for ( plist[0] = (P)ONE, i = 1; i <= n; i++ )
                    623:     mulp(CO,plist[i-1],t1,&plist[i]);
                    624:   return plist;
                    625: }
                    626:
                    627: P mhp_ctop(P *r,P *plist,int n)
                    628: {
                    629:   int i;
                    630:   P hp,u,w;
                    631:
                    632:   for ( hp = 0, i = 0; i <= n; i++ ) {
                    633:     mulp(CO,plist[i],r[i],&u); addp(CO,u,hp,&w); hp = w;
                    634:   }
                    635:   return hp;
                    636: }
                    637:
1.29    ! noro      638: LIST dp_monomial_hilbert_poincare(VECT b,VECT x,P *plist)
        !           639: {
        !           640:   int n;
        !           641:   P *r;
        !           642:   P tv;
        !           643:   P hp,hpoly;
        !           644:   VECT hfhead;
        !           645:   Z z;
        !           646:   NODE nd;
        !           647:   VECT vect;
        !           648:   LIST list;
        !           649:
        !           650:   n = x->len;
        !           651:   r = (P *)CALLOC(n+1,sizeof(P));
        !           652:   make_reduced(b,n);
        !           653:   makevar("t",&tv);
        !           654:   mhp_rec(b,x,tv,r);
        !           655:   hp = mhp_ctop(r,plist,n);
        !           656:   mhp_to_hf(CO,hp,n,plist,&hfhead,&hpoly);
        !           657:   UTOZ(n,z);
        !           658:   NEWVECT(vect); vect->len = n+1; BDY(vect) = (pointer)plist;
        !           659:   nd = mknode(5,hp,z,hfhead,hpoly,vect);
        !           660:   MKLIST(list,nd);
        !           661:   return list;
        !           662: }
        !           663:
1.3       noro      664: void Pdp_monomial_hilbert_poincare(NODE arg,LIST *rp)
                    665: {
                    666:   LIST g,v;
                    667:   VL vl;
1.5       noro      668:   int m,n,i;
1.29    ! noro      669:   VECT b,x,hfhead,prep;
1.3       noro      670:   NODE t,nd;
1.5       noro      671:   Z z,den;
                    672:   P hp,tv,mt,t1,u,w,hpoly;
1.3       noro      673:   DP a;
                    674:   DL *p;
1.29    ! noro      675:   P *plist;
1.4       noro      676:   Obj val;
1.3       noro      677:
                    678:   i_simple = i_all = 0;
                    679:   g = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
                    680:   pltovl(v,&vl);
                    681:   m = length(BDY(g)); MKVECT(b,m); p = (DL *)BDY(b);
                    682:   for ( t = BDY(g), i = 0; t; t = NEXT(t), i++ ) {
1.5       noro      683:     if ( !BDY(t) )
                    684:       p[i] = 0;
                    685:     else {
                    686:       ptod(CO,vl,(P)BDY(t),&a); p[i] = BDY(a)->dl;
                    687:     }
1.3       noro      688:   }
                    689:   n = length(BDY(v)); MKVECT(x,n); p = (DL *)BDY(x);
                    690:   for ( t = BDY(v), i = 0; t; t = NEXT(t), i++ ) {
                    691:     ptod(CO,vl,(P)BDY(t),&a); p[i] = BDY(a)->dl;
                    692:   }
1.5       noro      693:   plist = mhp_prep(n,&tv);
1.29    ! noro      694:   *rp = dp_monomial_hilbert_poincare(b,x,plist);
        !           695: }
        !           696:
        !           697: DL monomial_colon(DL a,DL b,int n)
        !           698: {
        !           699:   int i,d,td;
        !           700:   DL r;
        !           701:
        !           702:   NEWDL(r,n);
        !           703:   td = 0;
        !           704:   for ( i = 0; i < n; i++ ) {
        !           705:     d = a->d[i]-b->d[i];
        !           706:     r->d[i] = MAX(d,0);
        !           707:     td += r->d[i];
        !           708:   }
        !           709:   r->td = td;
        !           710:   return r;
        !           711: }
        !           712:
        !           713: // arguments : DPlist, Xlist, Mono, [HN(t),NV,Head,HP(n),Plist]
        !           714: void Pdp_monomial_hilbert_poincare_incremental(NODE arg,LIST *rp)
        !           715: {
        !           716:   NODE g,data,data1,nd,t;
        !           717:   LIST list,list1;
        !           718:   DL new,dl;
        !           719:   int len,i,n;
        !           720:   Z dz;
        !           721:   DL *p;
        !           722:   P hn,hn1,newhn,tv,newhpoly,td,s;
        !           723:   VECT b,x,newhfhead;
        !           724:   P *plist;
        !           725:
        !           726:   g = BDY((LIST)ARG0(arg)); new = BDY((DP)ARG1(arg))->dl;
        !           727:   data = BDY((LIST)ARG2(arg));
        !           728:   hn = (P)ARG0(data); n = ZTOS((Z)ARG1(data));
        !           729:   plist = (P *)BDY((VECT)ARG4(data));
        !           730:   len = length(g); MKVECT(b,len); p = (DL *)BDY(b);
        !           731:   for ( t = g, i = 0; t; t = NEXT(t), i++ )
        !           732:     p[i] = monomial_colon(BDY((DP)BDY(t))->dl,new,n);
        !           733:   MKVECT(x,n);
        !           734:   for ( i = 0; i < n; i++ ) {
        !           735:     NEWDL(dl,n); dl->d[i] = 1; dl->td = 1; BDY(x)[i] = dl;
        !           736:   }
        !           737:   // compute HP(I:new)
        !           738:   list1 = dp_monomial_hilbert_poincare(b,x,plist);
        !           739:   data1 = BDY((LIST)list1);
        !           740:   hn1 = (P)ARG0(data1);
        !           741:   // HP(I+<new>) = H(I)-t^d*H(I:new), d=tdeg(new)
        !           742:   makevar("t",&tv); UTOZ(new->td,dz);
        !           743:   pwrp(CO,tv,dz,&td);
        !           744:   mulp(CO,hn1,td,&s);
        !           745:   subp(CO,hn,s,&newhn);
        !           746:   mhp_to_hf(CO,newhn,n,plist,&newhfhead,&newhpoly);
        !           747:   nd = mknode(5,newhn,ARG1(data),newhfhead,newhpoly,(VECT)ARG4(data));
        !           748:   MKLIST(list,nd);
        !           749:   *rp = list;
1.3       noro      750: }
1.5       noro      751:
1.1       noro      752: void Pdp_compute_last_t(NODE arg,LIST *rp)
                    753: {
                    754:   NODE g,gh,homo,n;
                    755:   LIST hlist;
                    756:   VECT v1,v2,w;
                    757:   Q t;
                    758:
                    759:   g = (NODE)BDY((LIST)ARG0(arg));
                    760:   gh = (NODE)BDY((LIST)ARG1(arg));
                    761:   t = (Q)ARG2(arg);
                    762:   v1 = (VECT)ARG3(arg);
                    763:   v2 = (VECT)ARG4(arg);
                    764:   t = compute_last_t(g,gh,t,v1,v2,&homo,&w);
                    765:   MKLIST(hlist,homo);
                    766:   n = mknode(3,t,w,hlist);
                    767:   MKLIST(*rp,n);
                    768: }
                    769:
                    770: void Pdp_compute_last_w(NODE arg,LIST *rp)
                    771: {
                    772:   NODE g,gh,r;
                    773:   VECT w,rv;
                    774:   LIST l;
                    775:   MAT w1,w2;
                    776:   int row1,row2,i,j,n;
                    777:   int *v;
                    778:   int **m1,**m2;
                    779:   Z q;
                    780:
                    781:   g = (NODE)BDY((LIST)ARG0(arg));
                    782:   gh = (NODE)BDY((LIST)ARG1(arg));
                    783:   w = (VECT)ARG2(arg);
                    784:   w1 = (MAT)ARG3(arg);
                    785:   w2 = (MAT)ARG4(arg);
                    786:   n = w1->col;
                    787:   row1 = w1->row;
                    788:   row2 = w2->row;
                    789:   if ( w ) {
                    790:     v = W_ALLOC(n);
1.2       noro      791:     for ( i = 0; i < n; i++ ) v[i] = ZTOS((Q)w->body[i]);
1.1       noro      792:   } else v = 0;
                    793:   m1 = almat(row1,n);
                    794:   for ( i = 0; i < row1; i++ )
1.2       noro      795:     for ( j = 0; j < n; j++ ) m1[i][j] = ZTOS((Q)w1->body[i][j]);
1.1       noro      796:   m2 = almat(row2,n);
                    797:   for ( i = 0; i < row2; i++ )
1.2       noro      798:     for ( j = 0; j < n; j++ ) m2[i][j] = ZTOS((Q)w2->body[i][j]);
1.1       noro      799:   r = compute_last_w(g,gh,n,&v,row1,m1,row2,m2);
                    800:   if ( !r ) *rp = 0;
                    801:   else {
                    802:     MKVECT(rv,n);
                    803:     for ( i = 0; i < n; i++ ) {
1.2       noro      804:       STOZ(v[i],q); rv->body[i] = (pointer)q;
1.1       noro      805:     }
                    806:     MKLIST(l,r);
                    807:     r = mknode(2,rv,l);
                    808:     MKLIST(*rp,r);
                    809:   }
                    810: }
                    811:
                    812: NODE compute_essential_df(DP *g,DP *gh,int n);
                    813:
                    814: void Pdp_compute_essential_df(NODE arg,LIST *rp)
                    815: {
                    816:   VECT g,gh;
                    817:   NODE r;
                    818:
                    819:   g = (VECT)ARG0(arg);
                    820:   gh = (VECT)ARG1(arg);
                    821:   r = (NODE)compute_essential_df((DP *)BDY(g),(DP *)BDY(gh),g->len);
                    822:   MKLIST(*rp,r);
                    823: }
                    824:
                    825: void Pdp_inv_or_split(NODE arg,Obj *rp)
                    826: {
                    827:   NODE gb,newgb;
                    828:   DP f,inv;
                    829:   struct order_spec *spec;
                    830:   LIST list;
                    831:
                    832:   do_weyl = 0; dp_fcoeffs = 0;
                    833:   asir_assert(ARG0(arg),O_LIST,"dp_inv_or_split");
                    834:   asir_assert(ARG1(arg),O_DP,"dp_inv_or_split");
                    835:   if ( !create_order_spec(0,(Obj)ARG2(arg),&spec) )
                    836:     error("dp_inv_or_split : invalid order specification");
                    837:   gb = BDY((LIST)ARG0(arg));
                    838:   f = (DP)ARG1(arg);
                    839:   newgb = (NODE)dp_inv_or_split(gb,f,spec,&inv);
                    840:   if ( !newgb ) {
                    841:     /* invertible */
                    842:     *rp = (Obj)inv;
                    843:   } else {
                    844:     MKLIST(list,newgb);
                    845:     *rp = (Obj)list;
                    846:   }
                    847: }
                    848:
                    849: void Pdp_sort(NODE arg,DP *rp)
                    850: {
                    851:   dp_sort((DP)ARG0(arg),rp);
                    852: }
                    853:
                    854: void Pdp_mdtod(NODE arg,DP *rp)
                    855: {
                    856:   MP m,mr,mr0;
                    857:   DP p;
                    858:   P t;
                    859:
                    860:   p = (DP)ARG0(arg);
                    861:   if ( !p )
                    862:     *rp = 0;
                    863:   else {
                    864:     for ( mr0 = 0, m = BDY(p); m; m = NEXT(m) ) {
                    865:       mptop((P)m->c,&t); NEXTMP(mr0,mr); mr->c = (Obj)t; mr->dl = m->dl;
                    866:     }
                    867:     NEXT(mr) = 0; MKDP(p->nv,mr0,*rp); (*rp)->sugar = p->sugar;
                    868:   }
                    869: }
                    870:
                    871: void Pdp_sep(NODE arg,VECT *rp)
                    872: {
                    873:   DP p,r;
                    874:   MP m,t;
                    875:   MP *w0,*w;
                    876:   int i,n,d,nv,sugar;
                    877:   VECT v;
                    878:   pointer *pv;
                    879:
                    880:   p = (DP)ARG0(arg); m = BDY(p);
1.2       noro      881:   d = ZTOS((Q)ARG1(arg));
1.1       noro      882:   for ( t = m, n = 0; t; t = NEXT(t), n++ );
                    883:   if ( d > n )
                    884:     d = n;
                    885:   MKVECT(v,d); *rp = v;
                    886:   pv = BDY(v); nv = p->nv; sugar = p->sugar;
                    887:   w0 = (MP *)MALLOC(d*sizeof(MP)); bzero(w0,d*sizeof(MP));
                    888:   w = (MP *)MALLOC(d*sizeof(MP)); bzero(w,d*sizeof(MP));
                    889:   for ( t = BDY(p), i = 0; t; t = NEXT(t), i++, i %= d  ) {
                    890:     NEXTMP(w0[i],w[i]); w[i]->c = t->c; w[i]->dl = t->dl;
                    891:   }
                    892:   for ( i = 0; i < d; i++ ) {
                    893:     NEXT(w[i]) = 0; MKDP(nv,w0[i],r); r->sugar = sugar;
                    894:     pv[i] = (pointer)r;
                    895:   }
                    896: }
                    897:
                    898: void Pdp_idiv(NODE arg,DP *rp)
                    899: {
                    900:   dp_idiv((DP)ARG0(arg),(Z)ARG1(arg),rp);
                    901: }
                    902:
                    903: void Pdp_cont(NODE arg,Z *rp)
                    904: {
                    905:   dp_cont((DP)ARG0(arg),rp);
                    906: }
                    907:
1.21      noro      908: void dpm_ptozp(DPM p,Z *cont,DPM *r);
                    909:
                    910: void Pdpm_remove_cont(NODE arg,LIST *rp)
                    911: {
                    912:   NODE nd;
                    913:   Z cont;
                    914:   DPM p;
                    915:
                    916:   dpm_ptozp((DPM)ARG0(arg),&cont,&p);
                    917:   nd = mknode(2,cont,p);
                    918:   MKLIST(*rp,nd);
                    919: }
                    920:
1.1       noro      921: void Pdp_dtov(NODE arg,VECT *rp)
                    922: {
                    923:   dp_dtov((DP)ARG0(arg),rp);
                    924: }
                    925:
                    926: void Pdp_mbase(NODE arg,LIST *rp)
                    927: {
                    928:   NODE mb;
                    929:
                    930:   asir_assert(ARG0(arg),O_LIST,"dp_mbase");
                    931:   dp_mbase(BDY((LIST)ARG0(arg)),&mb);
                    932:   MKLIST(*rp,mb);
                    933: }
                    934:
                    935: void Pdp_etov(NODE arg,VECT *rp)
                    936: {
                    937:   DP dp;
                    938:   int n,i;
                    939:   int *d;
                    940:   VECT v;
                    941:   Z t;
                    942:
                    943:   dp = (DP)ARG0(arg);
                    944:   asir_assert(dp,O_DP,"dp_etov");
                    945:   n = dp->nv; d = BDY(dp)->dl->d;
                    946:   MKVECT(v,n);
                    947:   for ( i = 0; i < n; i++ ) {
1.2       noro      948:     STOZ(d[i],t); v->body[i] = (pointer)t;
1.1       noro      949:   }
                    950:   *rp = v;
                    951: }
                    952:
                    953: void Pdp_vtoe(NODE arg,DP *rp)
                    954: {
                    955:   DP dp;
                    956:   DL dl;
                    957:   MP m;
                    958:   int n,i,td;
                    959:   int *d;
                    960:   VECT v;
                    961:
                    962:   v = (VECT)ARG0(arg);
                    963:   asir_assert(v,O_VECT,"dp_vtoe");
                    964:   n = v->len;
                    965:   NEWDL(dl,n); d = dl->d;
                    966:   for ( i = 0, td = 0; i < n; i++ ) {
1.2       noro      967:     d[i] = ZTOS((Q)(v->body[i])); td += MUL_WEIGHT(d[i],i);
1.1       noro      968:   }
                    969:   dl->td = td;
                    970:   NEWMP(m); m->dl = dl; m->c = (Obj)ONE; NEXT(m) = 0;
                    971:   MKDP(n,m,dp); dp->sugar = td;
                    972:   *rp = dp;
                    973: }
                    974:
                    975: void Pdp_lnf_mod(NODE arg,LIST *rp)
                    976: {
                    977:   DP r1,r2;
                    978:   NODE b,g,n;
                    979:   int mod;
                    980:
                    981:   asir_assert(ARG0(arg),O_LIST,"dp_lnf_mod");
                    982:   asir_assert(ARG1(arg),O_LIST,"dp_lnf_mod");
                    983:   asir_assert(ARG2(arg),O_N,"dp_lnf_mod");
                    984:   b = BDY((LIST)ARG0(arg)); g = BDY((LIST)ARG1(arg));
1.2       noro      985:   mod = ZTOS((Q)ARG2(arg));
1.1       noro      986:   dp_lnf_mod((DP)BDY(b),(DP)BDY(NEXT(b)),g,mod,&r1,&r2);
                    987:   NEWNODE(n); BDY(n) = (pointer)r1;
                    988:   NEWNODE(NEXT(n)); BDY(NEXT(n)) = (pointer)r2;
                    989:   NEXT(NEXT(n)) = 0; MKLIST(*rp,n);
                    990: }
                    991:
                    992: void Pdp_lnf_f(NODE arg,LIST *rp)
                    993: {
                    994:   DP r1,r2;
                    995:   NODE b,g,n;
                    996:
                    997:   asir_assert(ARG0(arg),O_LIST,"dp_lnf_f");
                    998:   asir_assert(ARG1(arg),O_LIST,"dp_lnf_f");
                    999:   b = BDY((LIST)ARG0(arg)); g = BDY((LIST)ARG1(arg));
                   1000:   dp_lnf_f((DP)BDY(b),(DP)BDY(NEXT(b)),g,&r1,&r2);
                   1001:   NEWNODE(n); BDY(n) = (pointer)r1;
                   1002:   NEWNODE(NEXT(n)); BDY(NEXT(n)) = (pointer)r2;
                   1003:   NEXT(NEXT(n)) = 0; MKLIST(*rp,n);
                   1004: }
                   1005:
                   1006: void Pdp_nf_tab_mod(NODE arg,DP *rp)
                   1007: {
                   1008:   asir_assert(ARG0(arg),O_DP,"dp_nf_tab_mod");
                   1009:   asir_assert(ARG1(arg),O_VECT,"dp_nf_tab_mod");
                   1010:   asir_assert(ARG2(arg),O_N,"dp_nf_tab_mod");
                   1011:   dp_nf_tab_mod((DP)ARG0(arg),(LIST *)BDY((VECT)ARG1(arg)),
1.2       noro     1012:     ZTOS((Q)ARG2(arg)),rp);
1.1       noro     1013: }
                   1014:
                   1015: void Pdp_nf_tab_f(NODE arg,DP *rp)
                   1016: {
                   1017:   asir_assert(ARG0(arg),O_DP,"dp_nf_tab_f");
                   1018:   asir_assert(ARG1(arg),O_VECT,"dp_nf_tab_f");
                   1019:   dp_nf_tab_f((DP)ARG0(arg),(LIST *)BDY((VECT)ARG1(arg)),rp);
                   1020: }
                   1021:
1.9       noro     1022: extern int dpm_ordtype;
                   1023:
1.1       noro     1024: void Pdp_ord(NODE arg,Obj *rp)
                   1025: {
                   1026:   struct order_spec *spec;
                   1027:   LIST v;
                   1028:   struct oLIST f;
                   1029:   Num homo;
                   1030:   int modular;
                   1031:
                   1032:   f.id = O_LIST; f.body = 0;
                   1033:   if ( !arg && !current_option )
                   1034:     *rp = dp_current_spec->obj;
                   1035:   else {
                   1036:     if ( current_option )
                   1037:       parse_gr_option(&f,current_option,&v,&homo,&modular,&spec);
                   1038:     else if ( !create_order_spec(0,(Obj)ARG0(arg),&spec) )
                   1039:       error("dp_ord : invalid order specification");
                   1040:     initd(spec); *rp = spec->obj;
1.15      noro     1041:     if ( spec->id >= 256 ) dpm_ordtype = spec->module_ordtype;
1.1       noro     1042:   }
                   1043: }
                   1044:
                   1045: void Pdp_ptod(NODE arg,DP *rp)
                   1046: {
                   1047:   P p;
                   1048:   NODE n;
                   1049:   VL vl,tvl;
                   1050:   struct oLIST f;
                   1051:   int ac;
                   1052:   LIST v;
                   1053:   Num homo;
                   1054:   int modular;
                   1055:   struct order_spec *ord;
                   1056:
                   1057:   asir_assert(ARG0(arg),O_P,"dp_ptod");
                   1058:   p = (P)ARG0(arg);
                   1059:   ac = argc(arg);
                   1060:   if ( ac == 1 ) {
                   1061:     if ( current_option ) {
                   1062:       f.id = O_LIST; f.body = mknode(1,p);
                   1063:       parse_gr_option(&f,current_option,&v,&homo,&modular,&ord);
                   1064:       initd(ord);
                   1065:     } else
                   1066:       error("dp_ptod : invalid argument");
                   1067:   } else {
                   1068:     asir_assert(ARG1(arg),O_LIST,"dp_ptod");
                   1069:     v = (LIST)ARG1(arg);
                   1070:   }
                   1071:   for ( vl = 0, n = BDY(v); n; n = NEXT(n) ) {
                   1072:     if ( !vl ) {
                   1073:       NEWVL(vl); tvl = vl;
                   1074:     } else {
                   1075:       NEWVL(NEXT(tvl)); tvl = NEXT(tvl);
                   1076:     }
                   1077:     VR(tvl) = VR((P)BDY(n));
                   1078:   }
                   1079:   if ( vl )
                   1080:     NEXT(tvl) = 0;
                   1081:   ptod(CO,vl,p,rp);
                   1082: }
                   1083:
                   1084: void Phomogenize(NODE arg,Obj *rp)
                   1085: {
                   1086:   P p;
                   1087:   DP d,h;
                   1088:   NODE n;
                   1089:   V hv;
                   1090:   VL vl,tvl,last;
                   1091:   struct oLIST f;
                   1092:   LIST v;
                   1093:
                   1094:   asir_assert(ARG0(arg),O_P,"homogenize");
                   1095:   p = (P)ARG0(arg);
                   1096:   asir_assert(ARG1(arg),O_LIST,"homogenize");
                   1097:   v = (LIST)ARG1(arg);
                   1098:   asir_assert(ARG2(arg),O_P,"homogenize");
                   1099:   hv = VR((P)ARG2(arg));
                   1100:   for ( vl = 0, n = BDY(v); n; n = NEXT(n) ) {
                   1101:     if ( !vl ) {
                   1102:       NEWVL(vl); tvl = vl;
                   1103:     } else {
                   1104:       NEWVL(NEXT(tvl)); tvl = NEXT(tvl);
                   1105:     }
                   1106:     VR(tvl) = VR((P)BDY(n));
                   1107:   }
                   1108:   if ( vl ) {
                   1109:     last = tvl;
                   1110:     NEXT(tvl) = 0;
                   1111:   }
                   1112:   ptod(CO,vl,p,&d);
                   1113:   dp_homo(d,&h);
                   1114:   NEWVL(NEXT(last)); last = NEXT(last);
                   1115:   VR(last) = hv; NEXT(last) = 0;
                   1116:   dtop(CO,vl,h,rp);
                   1117: }
                   1118:
                   1119: void Pdp_ltod(NODE arg,DPV *rp)
                   1120: {
                   1121:   NODE n;
                   1122:   VL vl,tvl;
                   1123:   LIST f,v;
                   1124:   int sugar,i,len,ac,modular;
                   1125:   Num homo;
                   1126:   struct order_spec *ord;
                   1127:   DP *e;
                   1128:   NODE nd,t;
                   1129:
                   1130:   ac = argc(arg);
                   1131:   asir_assert(ARG0(arg),O_LIST,"dp_ptod");
                   1132:   f = (LIST)ARG0(arg);
                   1133:   if ( ac == 1 ) {
                   1134:     if ( current_option ) {
                   1135:       parse_gr_option(f,current_option,&v,&homo,&modular,&ord);
                   1136:       initd(ord);
                   1137:     } else
                   1138:       error("dp_ltod : invalid argument");
                   1139:   } else {
                   1140:     asir_assert(ARG1(arg),O_LIST,"dp_ptod");
                   1141:     v = (LIST)ARG1(arg);
                   1142:   }
                   1143:   for ( vl = 0, n = BDY(v); n; n = NEXT(n) ) {
                   1144:     if ( !vl ) {
                   1145:       NEWVL(vl); tvl = vl;
                   1146:     } else {
                   1147:       NEWVL(NEXT(tvl)); tvl = NEXT(tvl);
                   1148:     }
                   1149:     VR(tvl) = VR((P)BDY(n));
                   1150:   }
                   1151:   if ( vl )
                   1152:     NEXT(tvl) = 0;
                   1153:
                   1154:   nd = BDY(f);
                   1155:   len = length(nd);
                   1156:   e = (DP *)MALLOC(len*sizeof(DP));
                   1157:   sugar = 0;
                   1158:   for ( i = 0, t = nd; i < len; i++, t = NEXT(t) ) {
                   1159:     ptod(CO,vl,(P)BDY(t),&e[i]);
                   1160:     if ( e[i] )
                   1161:       sugar = MAX(sugar,e[i]->sugar);
                   1162:   }
                   1163:   MKDPV(len,e,*rp);
                   1164: }
                   1165:
                   1166: void Pdpm_ltod(NODE arg,DPM *rp)
                   1167: {
                   1168:   NODE n;
                   1169:   VL vl,tvl;
                   1170:   LIST f,v;
                   1171:   int i,len;
                   1172:   NODE nd;
                   1173:   NODE t;
                   1174:   DP d;
                   1175:   DPM s,u,w;
                   1176:
                   1177:   f = (LIST)ARG0(arg);
                   1178:   v = (LIST)ARG1(arg);
                   1179:   for ( vl = 0, n = BDY(v); n; n = NEXT(n) ) {
                   1180:     if ( !vl ) {
                   1181:       NEWVL(vl); tvl = vl;
                   1182:     } else {
                   1183:       NEWVL(NEXT(tvl)); tvl = NEXT(tvl);
                   1184:     }
                   1185:     VR(tvl) = VR((P)BDY(n));
                   1186:   }
                   1187:   if ( vl )
                   1188:     NEXT(tvl) = 0;
                   1189:
                   1190:   nd = BDY(f);
                   1191:   len = length(nd);
1.9       noro     1192:   for ( i = 1, t = nd, s = 0; i <= len; i++, t = NEXT(t) ) {
1.1       noro     1193:     ptod(CO,vl,(P)BDY(t),&d);
                   1194:     dtodpm(d,i,&u);
                   1195:     adddpm(CO,s,u,&w); s = w;
                   1196:   }
                   1197:   *rp = s;
                   1198: }
                   1199:
1.9       noro     1200: // c*[monomial,i]+... -> c*<<monomial:i>>+...
                   1201:
                   1202: void Pdpm_dptodpm(NODE arg,DPM *rp)
                   1203: {
                   1204:   DP p;
                   1205:   MP mp;
1.16      noro     1206:   int pos,shift;
1.9       noro     1207:   DMM m0,m;
                   1208:
                   1209:   p = (DP)ARG0(arg);
                   1210:   pos = ZTOS((Z)ARG1(arg));
                   1211:   if ( pos <= 0 )
                   1212:     error("dpm_mtod : position must be positive");
                   1213:   if ( !p ) *rp = 0;
                   1214:   else {
                   1215:     for ( m0 = 0, mp = BDY(p); mp; mp = NEXT(mp) ) {
                   1216:       NEXTDMM(m0,m); m->dl = mp->dl; m->c = mp->c; m->pos = pos;
                   1217:     }
1.21      noro     1218:     if ( dp_current_spec->module_top_weight ) {
1.16      noro     1219:       if ( pos > dp_current_spec->module_rank )
                   1220:         error("dpm_dptodpm : inconsistent order spec");
                   1221:       shift = dp_current_spec->module_top_weight[pos-1];
                   1222:       m->dl->td += shift;
                   1223:     } else
                   1224:       shift = 0;
                   1225:
                   1226:     MKDPM(p->nv,m0,*rp); (*rp)->sugar = p->sugar+shift;
1.9       noro     1227:   }
                   1228: }
                   1229:
1.1       noro     1230: void Pdpm_dtol(NODE arg,LIST *rp)
                   1231: {
                   1232:   DPM a;
                   1233:   NODE nd,nd1;
                   1234:   VL vl,tvl;
                   1235:   int n,len,i,pos,nv;
                   1236:   MP *w;
                   1237:   DMM t;
                   1238:   DMM *wa;
                   1239:   MP m;
                   1240:   DP u;
                   1241:   Obj s;
                   1242:
                   1243:   a = (DPM)ARG0(arg);
1.14      noro     1244:   if ( !a ) {
                   1245:    MKLIST(*rp,0);
                   1246:    return;
                   1247:   }
1.1       noro     1248:   for ( vl = 0, nd = BDY((LIST)ARG1(arg)), nv = 0; nd; nd = NEXT(nd), nv++ ) {
                   1249:     if ( !vl ) {
                   1250:       NEWVL(vl); tvl = vl;
                   1251:     } else {
                   1252:       NEWVL(NEXT(tvl)); tvl = NEXT(tvl);
                   1253:     }
                   1254:     VR(tvl) = VR((P)BDY(nd));
                   1255:   }
                   1256:   if ( vl )
                   1257:     NEXT(tvl) = 0;
1.14      noro     1258:   for ( t = BDY(a), n = 0; t; t = NEXT(t) )
                   1259:     if ( t->pos > n ) n = t->pos;
1.1       noro     1260:    w = (MP *)CALLOC(n,sizeof(MP));
                   1261:    for ( t = BDY(a), len = 0; t; t = NEXT(t) ) len++;
                   1262:    wa = (DMM *)MALLOC(len*sizeof(DMM));
                   1263:    for ( t = BDY(a), i = 0; t; t = NEXT(t), i++ ) wa[i] = t;
                   1264:    for ( i = len-1; i >= 0; i-- ) {
                   1265:      NEWMP(m); m->dl = wa[i]->dl; C(m) = C(wa[i]);
                   1266:      pos = wa[i]->pos;
1.14      noro     1267:      NEXT(m) = w[pos-1];
                   1268:      w[pos-1] = m;
1.1       noro     1269:    }
                   1270:   nd = 0;
                   1271:   for ( i = n-1; i >= 0; i-- ) {
                   1272:     MKDP(nv,w[i],u); u->sugar = a->sugar; /* XXX */
                   1273:     dtop(CO,vl,u,&s);
                   1274:     MKNODE(nd1,s,nd); nd = nd1;
                   1275:   }
                   1276:   MKLIST(*rp,nd);
                   1277: }
                   1278:
                   1279: void Pdp_dtop(NODE arg,Obj *rp)
                   1280: {
                   1281:   NODE n;
                   1282:   VL vl,tvl;
                   1283:
                   1284:   asir_assert(ARG0(arg),O_DP,"dp_dtop");
                   1285:   asir_assert(ARG1(arg),O_LIST,"dp_dtop");
                   1286:   for ( vl = 0, n = BDY((LIST)ARG1(arg)); n; n = NEXT(n) ) {
                   1287:     if ( !vl ) {
                   1288:       NEWVL(vl); tvl = vl;
                   1289:     } else {
                   1290:       NEWVL(NEXT(tvl)); tvl = NEXT(tvl);
                   1291:     }
                   1292:     VR(tvl) = VR((P)BDY(n));
                   1293:   }
                   1294:   if ( vl )
                   1295:     NEXT(tvl) = 0;
                   1296:   dtop(CO,vl,(DP)ARG0(arg),rp);
                   1297: }
                   1298:
                   1299: extern LIST Dist;
                   1300:
                   1301: void Pdp_ptozp(NODE arg,Obj *rp)
                   1302: {
                   1303:   Z t;
                   1304:   NODE tt,p;
                   1305:   NODE n,n0;
                   1306:   char *key;
                   1307:   DP pp;
                   1308:   LIST list;
                   1309:   int get_factor=0;
                   1310:
                   1311:   asir_assert(ARG0(arg),O_DP,"dp_ptozp");
                   1312:
                   1313:     /* analyze the option */
                   1314:     if ( current_option ) {
                   1315:       for ( tt = current_option; tt; tt = NEXT(tt) ) {
                   1316:         p = BDY((LIST)BDY(tt));
                   1317:         key = BDY((STRING)BDY(p));
                   1318:         /*  value = (Obj)BDY(NEXT(p)); */
                   1319:         if ( !strcmp(key,"factor") )  get_factor=1;
                   1320:         else {
                   1321:           error("ptozp: unknown option.");
                   1322:         }
                   1323:       }
                   1324:     }
                   1325:
                   1326:   dp_ptozp3((DP)ARG0(arg),&t,&pp);
                   1327:
                   1328:     /* printexpr(NULL,t); */
                   1329:   /* if the option factor is given, then it returns the answer
                   1330:        in the format [zpoly, num] where num*zpoly is equal to the argument.*/
                   1331:     if (get_factor) {
                   1332:     n0 = mknode(2,pp,t);
                   1333:       MKLIST(list,n0);
                   1334:     *rp = (Obj)list;
                   1335:     } else
                   1336:       *rp = (Obj)pp;
                   1337: }
                   1338:
                   1339: void Pdp_ptozp2(NODE arg,LIST *rp)
                   1340: {
                   1341:   DP p0,p1,h,r;
                   1342:   NODE n0;
                   1343:
                   1344:   p0 = (DP)ARG0(arg); p1 = (DP)ARG1(arg);
                   1345:   asir_assert(p0,O_DP,"dp_ptozp2");
                   1346:   asir_assert(p1,O_DP,"dp_ptozp2");
                   1347:   dp_ptozp2(p0,p1,&h,&r);
                   1348:   NEWNODE(n0); BDY(n0) = (pointer)h;
                   1349:   NEWNODE(NEXT(n0)); BDY(NEXT(n0)) = (pointer)r;
                   1350:   NEXT(NEXT(n0)) = 0;
                   1351:   MKLIST(*rp,n0);
                   1352: }
                   1353:
                   1354: void Pdp_prim(NODE arg,DP *rp)
                   1355: {
                   1356:   DP t;
                   1357:
                   1358:   asir_assert(ARG0(arg),O_DP,"dp_prim");
                   1359:   dp_prim((DP)ARG0(arg),&t); dp_ptozp(t,rp);
                   1360: }
                   1361:
                   1362: void Pdp_mod(NODE arg,DP *rp)
                   1363: {
                   1364:   DP p;
                   1365:   int mod;
                   1366:   NODE subst;
                   1367:
                   1368:   asir_assert(ARG0(arg),O_DP,"dp_mod");
                   1369:   asir_assert(ARG1(arg),O_N,"dp_mod");
                   1370:   asir_assert(ARG2(arg),O_LIST,"dp_mod");
1.2       noro     1371:   p = (DP)ARG0(arg); mod = ZTOS((Q)ARG1(arg));
1.1       noro     1372:   subst = BDY((LIST)ARG2(arg));
                   1373:   dp_mod(p,mod,subst,rp);
                   1374: }
                   1375:
1.26      noro     1376: void dpm_mod(DPM,int,DPM *);
                   1377:
                   1378: void Pdpm_mod(NODE arg,DPM *rp)
                   1379: {
                   1380:   DPM p;
                   1381:   int mod;
                   1382:   NODE subst;
                   1383:
                   1384:   asir_assert(ARG0(arg),O_DP,"dp_mod");
                   1385:   asir_assert(ARG1(arg),O_N,"dp_mod");
                   1386:   p = (DPM)ARG0(arg); mod = ZTOS((Q)ARG1(arg));
                   1387:   dpm_mod(p,mod,rp);
                   1388: }
                   1389:
                   1390:
1.1       noro     1391: void Pdp_rat(NODE arg,DP *rp)
                   1392: {
                   1393:   asir_assert(ARG0(arg),O_DP,"dp_rat");
                   1394:   dp_rat((DP)ARG0(arg),rp);
                   1395: }
                   1396:
                   1397: extern int DP_Multiple;
                   1398:
                   1399: void Pdp_nf(NODE arg,DP *rp)
                   1400: {
                   1401:   NODE b;
                   1402:   DP *ps;
                   1403:   DP g;
                   1404:   int full;
                   1405:
                   1406:   do_weyl = 0; dp_fcoeffs = 0;
                   1407:   asir_assert(ARG0(arg),O_LIST,"dp_nf");
                   1408:   asir_assert(ARG1(arg),O_DP,"dp_nf");
                   1409:   asir_assert(ARG2(arg),O_VECT,"dp_nf");
                   1410:   asir_assert(ARG3(arg),O_N,"dp_nf");
                   1411:   if ( !(g = (DP)ARG1(arg)) ) {
                   1412:     *rp = 0; return;
                   1413:   }
                   1414:   b = BDY((LIST)ARG0(arg)); ps = (DP *)BDY((VECT)ARG2(arg));
                   1415:   full = (Q)ARG3(arg) ? 1 : 0;
                   1416:   dp_nf_z(b,g,ps,full,DP_Multiple,rp);
                   1417: }
                   1418:
                   1419: void Pdp_weyl_nf(NODE arg,DP *rp)
                   1420: {
                   1421:   NODE b;
                   1422:   DP *ps;
                   1423:   DP g;
                   1424:   int full;
                   1425:
                   1426:   asir_assert(ARG0(arg),O_LIST,"dp_weyl_nf");
                   1427:   asir_assert(ARG1(arg),O_DP,"dp_weyl_nf");
                   1428:   asir_assert(ARG2(arg),O_VECT,"dp_weyl_nf");
                   1429:   asir_assert(ARG3(arg),O_N,"dp_weyl_nf");
                   1430:   if ( !(g = (DP)ARG1(arg)) ) {
                   1431:     *rp = 0; return;
                   1432:   }
                   1433:   b = BDY((LIST)ARG0(arg)); ps = (DP *)BDY((VECT)ARG2(arg));
                   1434:   full = (Q)ARG3(arg) ? 1 : 0;
                   1435:   do_weyl = 1;
                   1436:   dp_nf_z(b,g,ps,full,DP_Multiple,rp);
                   1437:   do_weyl = 0;
                   1438: }
                   1439:
                   1440: void Pdpm_nf(NODE arg,DPM *rp)
                   1441: {
                   1442:   NODE b;
1.11      noro     1443:   VECT ps;
1.1       noro     1444:   DPM g;
1.11      noro     1445:   int ac,full;
1.1       noro     1446:
                   1447:   if ( !(g = (DPM)ARG1(arg)) ) {
                   1448:     *rp = 0; return;
                   1449:   }
                   1450:   do_weyl = 0; dp_fcoeffs = 0;
1.11      noro     1451:   ac = argc(arg);
                   1452:   if ( ac < 3 )
                   1453:     error("dpm_nf: invalid arguments");
                   1454:   else if ( ac == 3 ) {
                   1455:     asir_assert(ARG1(arg),O_VECT,"dpm_nf");
                   1456:     b = 0; g = (DPM)ARG0(arg); ps = (VECT)ARG1(arg);
                   1457:   } else if ( ac == 4 ) {
                   1458:     asir_assert(ARG0(arg),O_LIST,"dpm_nf");
                   1459:     asir_assert(ARG2(arg),O_VECT,"dpm_nf");
                   1460:     b = BDY((LIST)ARG0(arg)); g = (DPM)ARG1(arg); ps = (VECT)ARG2(arg);
                   1461:     full = (Q)ARG3(arg) ? 1 : 0;
                   1462:   }
1.1       noro     1463:   dpm_nf_z(b,g,ps,full,DP_Multiple,rp);
                   1464: }
                   1465:
1.9       noro     1466: DP *dpm_nf_and_quotient(NODE b,DPM g,VECT ps,DPM *rp,P *dnp);
1.17      noro     1467: DPM dpm_nf_and_quotient2(NODE b,DPM g,VECT ps,DPM *rp,P *dnp);
1.9       noro     1468:
                   1469: void Pdpm_nf_and_quotient(NODE arg,LIST *rp)
                   1470: {
                   1471:   NODE b;
                   1472:   VECT ps;
                   1473:   DPM g,nm;
                   1474:   P dn;
                   1475:   VECT quo;
                   1476:   NODE n;
                   1477:   int ac;
                   1478:
                   1479:   do_weyl = 0; dp_fcoeffs = 0;
                   1480:   ac = argc(arg);
                   1481:   if ( ac < 2 )
                   1482:     error("dpm_nf_and_quotient : invalid arguments");
                   1483:   else if ( ac == 2 ) {
1.11      noro     1484:     asir_assert(ARG1(arg),O_VECT,"dpm_nf_and_quotient");
1.9       noro     1485:     b = 0; g = (DPM)ARG0(arg); ps = (VECT)ARG1(arg);
                   1486:   } else if ( ac == 3 ) {
1.11      noro     1487:     asir_assert(ARG0(arg),O_LIST,"dpm_nf_and_quotient");
                   1488:     asir_assert(ARG2(arg),O_VECT,"dpm_nf_and_quotient");
1.9       noro     1489:     b = BDY((LIST)ARG0(arg)); g = (DPM)ARG1(arg); ps = (VECT)ARG2(arg);
                   1490:   }
1.10      noro     1491:   NEWVECT(quo); quo->len = ps->len;
                   1492:   if ( g ) {
                   1493:     quo->body = (pointer *)dpm_nf_and_quotient(b,g,ps,&nm,&dn);
                   1494:   } else {
                   1495:     quo->body = (pointer *)MALLOC(quo->len*sizeof(pointer));
                   1496:     nm = 0; dn = (P)ONE;
1.9       noro     1497:   }
                   1498:   n = mknode(3,nm,dn,quo);
                   1499:   MKLIST(*rp,n);
                   1500: }
                   1501:
1.17      noro     1502: void Pdpm_nf_and_quotient2(NODE arg,LIST *rp)
                   1503: {
                   1504:   NODE b;
                   1505:   VECT ps;
                   1506:   DPM g,nm,q;
                   1507:   P dn;
                   1508:   NODE n;
                   1509:   int ac;
                   1510:
                   1511:   do_weyl = 0; dp_fcoeffs = 0;
                   1512:   ac = argc(arg);
                   1513:   if ( ac < 2 )
                   1514:     error("dpm_nf_and_quotient2 : invalid arguments");
                   1515:   else if ( ac == 2 ) {
                   1516:     asir_assert(ARG1(arg),O_VECT,"dpm_nf_and_quotient2");
                   1517:     b = 0; g = (DPM)ARG0(arg); ps = (VECT)ARG1(arg);
                   1518:   } else if ( ac == 3 ) {
                   1519:     asir_assert(ARG0(arg),O_LIST,"dpm_nf_and_quotient2");
                   1520:     asir_assert(ARG2(arg),O_VECT,"dpm_nf_and_quotient2");
                   1521:     b = BDY((LIST)ARG0(arg)); g = (DPM)ARG1(arg); ps = (VECT)ARG2(arg);
                   1522:   }
                   1523:   if ( g ) {
                   1524:     q = dpm_nf_and_quotient2(b,g,ps,&nm,&dn);
                   1525:   } else {
                   1526:     q = 0; nm = 0; dn = (P)ONE;
                   1527:   }
                   1528:   n = mknode(3,nm,dn,q);
                   1529:   MKLIST(*rp,n);
                   1530: }
                   1531:
1.1       noro     1532: void Pdpm_weyl_nf(NODE arg,DPM *rp)
                   1533: {
                   1534:   NODE b;
1.11      noro     1535:   VECT ps;
1.1       noro     1536:   DPM g;
1.11      noro     1537:   int ac,full;
1.1       noro     1538:
                   1539:   if ( !(g = (DPM)ARG1(arg)) ) {
                   1540:     *rp = 0; return;
                   1541:   }
1.11      noro     1542:   do_weyl = 1; dp_fcoeffs = 0;
                   1543:   ac = argc(arg);
                   1544:   if ( ac < 3 )
                   1545:     error("dpm_weyl_nf: invalid arguments");
                   1546:   else if ( ac == 3 ) {
                   1547:     asir_assert(ARG1(arg),O_VECT,"dpm_nf");
                   1548:     b = 0; g = (DPM)ARG0(arg); ps = (VECT)ARG1(arg);
                   1549:   } else if ( ac == 4 ) {
                   1550:     asir_assert(ARG0(arg),O_LIST,"dpm_weyl_nf");
                   1551:     asir_assert(ARG2(arg),O_VECT,"dpm_weyl_nf");
                   1552:     b = BDY((LIST)ARG0(arg)); g = (DPM)ARG1(arg); ps = (VECT)ARG2(arg);
                   1553:     full = (Q)ARG3(arg) ? 1 : 0;
                   1554:   }
1.1       noro     1555:   dpm_nf_z(b,g,ps,full,DP_Multiple,rp);
                   1556:   do_weyl = 0;
                   1557: }
                   1558:
                   1559: /* nf computation using field operations */
                   1560:
                   1561: void Pdp_nf_f(NODE arg,DP *rp)
                   1562: {
                   1563:   NODE b;
                   1564:   DP *ps;
                   1565:   DP g;
                   1566:   int full;
                   1567:
                   1568:   do_weyl = 0;
                   1569:   asir_assert(ARG0(arg),O_LIST,"dp_nf_f");
                   1570:   asir_assert(ARG1(arg),O_DP,"dp_nf_f");
                   1571:   asir_assert(ARG2(arg),O_VECT,"dp_nf_f");
                   1572:   asir_assert(ARG3(arg),O_N,"dp_nf_f");
                   1573:   if ( !(g = (DP)ARG1(arg)) ) {
                   1574:     *rp = 0; return;
                   1575:   }
                   1576:   b = BDY((LIST)ARG0(arg)); ps = (DP *)BDY((VECT)ARG2(arg));
                   1577:   full = (Q)ARG3(arg) ? 1 : 0;
                   1578:   dp_nf_f(b,g,ps,full,rp);
                   1579: }
                   1580:
                   1581: void Pdp_weyl_nf_f(NODE arg,DP *rp)
                   1582: {
                   1583:   NODE b;
                   1584:   DP *ps;
                   1585:   DP g;
                   1586:   int full;
                   1587:
                   1588:   asir_assert(ARG0(arg),O_LIST,"dp_weyl_nf_f");
                   1589:   asir_assert(ARG1(arg),O_DP,"dp_weyl_nf_f");
                   1590:   asir_assert(ARG2(arg),O_VECT,"dp_weyl_nf_f");
                   1591:   asir_assert(ARG3(arg),O_N,"dp_weyl_nf_f");
                   1592:   if ( !(g = (DP)ARG1(arg)) ) {
                   1593:     *rp = 0; return;
                   1594:   }
                   1595:   b = BDY((LIST)ARG0(arg)); ps = (DP *)BDY((VECT)ARG2(arg));
                   1596:   full = (Q)ARG3(arg) ? 1 : 0;
                   1597:   do_weyl = 1;
                   1598:   dp_nf_f(b,g,ps,full,rp);
                   1599:   do_weyl = 0;
                   1600: }
                   1601:
                   1602: void Pdpm_nf_f(NODE arg,DPM *rp)
                   1603: {
                   1604:   NODE b;
1.11      noro     1605:   VECT ps;
1.1       noro     1606:   DPM g;
1.11      noro     1607:   int ac,full;
1.1       noro     1608:
                   1609:   if ( !(g = (DPM)ARG1(arg)) ) {
                   1610:     *rp = 0; return;
                   1611:   }
1.11      noro     1612:   ac = argc(arg);
                   1613:   if ( ac < 3 )
                   1614:     error("dpm_nf_f: invalid arguments");
                   1615:   else if ( ac == 3 ) {
                   1616:     asir_assert(ARG1(arg),O_VECT,"dpm_nf_f");
                   1617:     b = 0; g = (DPM)ARG0(arg); ps = (VECT)ARG1(arg);
                   1618:   } else if ( ac == 4 ) {
                   1619:     asir_assert(ARG0(arg),O_LIST,"dpm_nf_f");
                   1620:     asir_assert(ARG2(arg),O_VECT,"dpm_nf_f");
                   1621:     b = BDY((LIST)ARG0(arg)); g = (DPM)ARG1(arg); ps = (VECT)ARG2(arg);
                   1622:     full = (Q)ARG3(arg) ? 1 : 0;
                   1623:   }
                   1624:   do_weyl = 0;
1.1       noro     1625:   dpm_nf_f(b,g,ps,full,rp);
                   1626: }
                   1627:
                   1628: void Pdpm_weyl_nf_f(NODE arg,DPM *rp)
                   1629: {
                   1630:   NODE b;
1.11      noro     1631:   VECT ps;
1.1       noro     1632:   DPM g;
1.11      noro     1633:   int ac,full;
1.1       noro     1634:
                   1635:   if ( !(g = (DPM)ARG1(arg)) ) {
                   1636:     *rp = 0; return;
                   1637:   }
1.11      noro     1638:   ac = argc(arg);
                   1639:   if ( ac < 3 )
                   1640:     error("dpm_weyl_nf_f: invalid arguments");
                   1641:   else if ( ac == 3 ) {
                   1642:     asir_assert(ARG1(arg),O_VECT,"dpm_weyl_nf_f");
                   1643:     b = 0; g = (DPM)ARG0(arg); ps = (VECT)ARG1(arg);
                   1644:   } else if ( ac == 4 ) {
                   1645:     asir_assert(ARG0(arg),O_LIST,"dpm_weyl_nf_f");
                   1646:     asir_assert(ARG2(arg),O_VECT,"dpm_weyl_nf_f");
                   1647:     b = BDY((LIST)ARG0(arg)); g = (DPM)ARG1(arg); ps = (VECT)ARG2(arg);
                   1648:     full = (Q)ARG3(arg) ? 1 : 0;
                   1649:   }
1.1       noro     1650:   do_weyl = 1;
                   1651:   dpm_nf_f(b,g,ps,full,rp);
                   1652:   do_weyl = 0;
                   1653: }
                   1654:
                   1655:
                   1656: void Pdp_nf_mod(NODE arg,DP *rp)
                   1657: {
                   1658:   NODE b;
                   1659:   DP g;
                   1660:   DP *ps;
                   1661:   int mod,full,ac;
                   1662:   NODE n,n0;
                   1663:
                   1664:   do_weyl = 0;
                   1665:   ac = argc(arg);
                   1666:   asir_assert(ARG0(arg),O_LIST,"dp_nf_mod");
                   1667:   asir_assert(ARG1(arg),O_DP,"dp_nf_mod");
                   1668:   asir_assert(ARG2(arg),O_VECT,"dp_nf_mod");
                   1669:   asir_assert(ARG3(arg),O_N,"dp_nf_mod");
                   1670:   asir_assert(ARG4(arg),O_N,"dp_nf_mod");
                   1671:   if ( !(g = (DP)ARG1(arg)) ) {
                   1672:     *rp = 0; return;
                   1673:   }
                   1674:   b = BDY((LIST)ARG0(arg)); ps = (DP *)BDY((VECT)ARG2(arg));
1.2       noro     1675:   full = ZTOS((Q)ARG3(arg)); mod = ZTOS((Q)ARG4(arg));
1.1       noro     1676:   for ( n0 = n = 0; b; b = NEXT(b) ) {
                   1677:     NEXTNODE(n0,n);
1.2       noro     1678:     BDY(n) = (pointer)ZTOS((Q)BDY(b));
1.1       noro     1679:   }
                   1680:   if ( n0 )
                   1681:     NEXT(n) = 0;
                   1682:   dp_nf_mod(n0,g,ps,mod,full,rp);
                   1683: }
                   1684:
                   1685: void Pdp_true_nf(NODE arg,LIST *rp)
                   1686: {
                   1687:   NODE b,n;
                   1688:   DP *ps;
                   1689:   DP g;
                   1690:   DP nm;
                   1691:   P dn;
                   1692:   int full;
                   1693:
                   1694:   do_weyl = 0; dp_fcoeffs = 0;
                   1695:   asir_assert(ARG0(arg),O_LIST,"dp_true_nf");
                   1696:   asir_assert(ARG1(arg),O_DP,"dp_true_nf");
                   1697:   asir_assert(ARG2(arg),O_VECT,"dp_true_nf");
                   1698:   asir_assert(ARG3(arg),O_N,"dp_nf");
                   1699:   if ( !(g = (DP)ARG1(arg)) ) {
                   1700:     nm = 0; dn = (P)ONE;
                   1701:   } else {
                   1702:     b = BDY((LIST)ARG0(arg)); ps = (DP *)BDY((VECT)ARG2(arg));
                   1703:     full = (Q)ARG3(arg) ? 1 : 0;
                   1704:     dp_true_nf(b,g,ps,full,&nm,&dn);
                   1705:   }
                   1706:   NEWNODE(n); BDY(n) = (pointer)nm;
                   1707:   NEWNODE(NEXT(n)); BDY(NEXT(n)) = (pointer)dn;
                   1708:   NEXT(NEXT(n)) = 0; MKLIST(*rp,n);
                   1709: }
                   1710:
                   1711: DP *dp_true_nf_and_quotient_marked(NODE b,DP g,DP *ps,DP *hps,DP *rp,P *dnp);
                   1712:
                   1713: void Pdp_true_nf_and_quotient_marked(NODE arg,LIST *rp)
                   1714: {
                   1715:   NODE b,n;
                   1716:   DP *ps,*hps;
                   1717:   DP g;
                   1718:   DP nm;
                   1719:   VECT quo;
                   1720:   P dn;
                   1721:   int full;
                   1722:
                   1723:   do_weyl = 0; dp_fcoeffs = 0;
                   1724:   asir_assert(ARG0(arg),O_LIST,"dp_true_nf_and_quotient_marked");
                   1725:   asir_assert(ARG1(arg),O_DP,"dp_true_nf_and_quotient_marked");
                   1726:   asir_assert(ARG2(arg),O_VECT,"dp_true_nf_and_quotient_marked");
                   1727:   asir_assert(ARG3(arg),O_VECT,"dp_true_nf_and_quotient_marked");
                   1728:   if ( !(g = (DP)ARG1(arg)) ) {
                   1729:     nm = 0; dn = (P)ONE;
                   1730:   } else {
                   1731:     b = BDY((LIST)ARG0(arg));
                   1732:     ps = (DP *)BDY((VECT)ARG2(arg));
                   1733:     hps = (DP *)BDY((VECT)ARG3(arg));
                   1734:     NEWVECT(quo); quo->len = ((VECT)ARG2(arg))->len;
                   1735:     quo->body = (pointer *)dp_true_nf_and_quotient_marked(b,g,ps,hps,&nm,&dn);
                   1736:   }
                   1737:   n = mknode(3,nm,dn,quo);
                   1738:   MKLIST(*rp,n);
                   1739: }
                   1740:
                   1741: void Pdp_true_nf_and_quotient(NODE arg,LIST *rp)
                   1742: {
                   1743:   NODE narg = mknode(4,ARG0(arg),ARG1(arg),ARG2(arg),ARG2(arg));
                   1744:   Pdp_true_nf_and_quotient_marked(narg,rp);
                   1745: }
                   1746:
                   1747:
                   1748: DP *dp_true_nf_and_quotient_marked_mod (NODE b,DP g,DP *ps,DP *hps,int mod,DP *rp,P *dnp);
                   1749:
                   1750: void Pdp_true_nf_and_quotient_marked_mod(NODE arg,LIST *rp)
                   1751: {
                   1752:   NODE b,n;
                   1753:   DP *ps,*hps;
                   1754:   DP g;
                   1755:   DP nm;
                   1756:   VECT quo;
                   1757:   P dn;
                   1758:   int full,mod;
                   1759:
                   1760:   do_weyl = 0; dp_fcoeffs = 0;
                   1761:   asir_assert(ARG0(arg),O_LIST,"dp_true_nf_and_quotient_marked_mod");
                   1762:   asir_assert(ARG1(arg),O_DP,"dp_true_nf_and_quotient_marked_mod");
                   1763:   asir_assert(ARG2(arg),O_VECT,"dp_true_nf_and_quotient_marked_mod");
                   1764:   asir_assert(ARG3(arg),O_VECT,"dp_true_nf_and_quotient_marked_mod");
                   1765:   asir_assert(ARG4(arg),O_N,"dp_true_nf_and_quotient_marked_mod");
                   1766:   if ( !(g = (DP)ARG1(arg)) ) {
                   1767:     nm = 0; dn = (P)ONE;
                   1768:   } else {
                   1769:     b = BDY((LIST)ARG0(arg));
                   1770:     ps = (DP *)BDY((VECT)ARG2(arg));
                   1771:     hps = (DP *)BDY((VECT)ARG3(arg));
1.2       noro     1772:     mod = ZTOS((Q)ARG4(arg));
1.1       noro     1773:     NEWVECT(quo); quo->len = ((VECT)ARG2(arg))->len;
                   1774:     quo->body = (pointer *)dp_true_nf_and_quotient_marked_mod(b,g,ps,hps,mod,&nm,&dn);
                   1775:   }
                   1776:   n = mknode(3,nm,dn,quo);
                   1777:   MKLIST(*rp,n);
                   1778: }
                   1779:
                   1780: void Pdp_true_nf_and_quotient_mod(NODE arg,LIST *rp)
                   1781: {
                   1782:   NODE narg = mknode(5,ARG0(arg),ARG1(arg),ARG2(arg),ARG2(arg),ARG3(arg));
                   1783:   Pdp_true_nf_and_quotient_marked_mod(narg,rp);
                   1784: }
                   1785:
                   1786: void Pdp_true_nf_marked(NODE arg,LIST *rp)
                   1787: {
                   1788:   NODE b,n;
                   1789:   DP *ps,*hps;
                   1790:   DP g;
                   1791:   DP nm;
                   1792:   Q cont;
                   1793:   P dn;
                   1794:   int full;
                   1795:
                   1796:   do_weyl = 0; dp_fcoeffs = 0;
                   1797:   asir_assert(ARG0(arg),O_LIST,"dp_true_nf_marked");
                   1798:   asir_assert(ARG1(arg),O_DP,"dp_true_nf_marked");
                   1799:   asir_assert(ARG2(arg),O_VECT,"dp_true_nf_marked");
                   1800:   asir_assert(ARG3(arg),O_VECT,"dp_true_nf_marked");
                   1801:   if ( !(g = (DP)ARG1(arg)) ) {
                   1802:     nm = 0; dn = (P)ONE;
                   1803:   } else {
                   1804:     b = BDY((LIST)ARG0(arg));
                   1805:     ps = (DP *)BDY((VECT)ARG2(arg));
                   1806:     hps = (DP *)BDY((VECT)ARG3(arg));
                   1807:     dp_true_nf_marked(b,g,ps,hps,&nm,(P *)&cont,(P *)&dn);
                   1808:   }
                   1809:   n = mknode(3,nm,cont,dn);
                   1810:   MKLIST(*rp,n);
                   1811: }
                   1812:
                   1813: void Pdp_true_nf_marked_mod(NODE arg,LIST *rp)
                   1814: {
                   1815:   NODE b,n;
                   1816:   DP *ps,*hps;
                   1817:   DP g;
                   1818:   DP nm;
                   1819:   P dn;
                   1820:   int mod;
                   1821:
                   1822:   do_weyl = 0; dp_fcoeffs = 0;
                   1823:   asir_assert(ARG0(arg),O_LIST,"dp_true_nf_marked_mod");
                   1824:   asir_assert(ARG1(arg),O_DP,"dp_true_nf_marked_mod");
                   1825:   asir_assert(ARG2(arg),O_VECT,"dp_true_nf_marked_mod");
                   1826:   asir_assert(ARG3(arg),O_VECT,"dp_true_nf_marked_mod");
                   1827:   asir_assert(ARG4(arg),O_N,"dp_true_nf_marked_mod");
                   1828:   if ( !(g = (DP)ARG1(arg)) ) {
                   1829:     nm = 0; dn = (P)ONE;
                   1830:   } else {
                   1831:     b = BDY((LIST)ARG0(arg));
                   1832:     ps = (DP *)BDY((VECT)ARG2(arg));
                   1833:     hps = (DP *)BDY((VECT)ARG3(arg));
1.2       noro     1834:     mod = ZTOS((Q)ARG4(arg));
1.1       noro     1835:     dp_true_nf_marked_mod(b,g,ps,hps,mod,&nm,&dn);
                   1836:   }
                   1837:   n = mknode(2,nm,dn);
                   1838:   MKLIST(*rp,n);
                   1839: }
                   1840:
                   1841: void Pdp_weyl_nf_mod(NODE arg,DP *rp)
                   1842: {
                   1843:   NODE b;
                   1844:   DP g;
                   1845:   DP *ps;
                   1846:   int mod,full,ac;
                   1847:   NODE n,n0;
                   1848:
                   1849:   ac = argc(arg);
                   1850:   asir_assert(ARG0(arg),O_LIST,"dp_weyl_nf_mod");
                   1851:   asir_assert(ARG1(arg),O_DP,"dp_weyl_nf_mod");
                   1852:   asir_assert(ARG2(arg),O_VECT,"dp_weyl_nf_mod");
                   1853:   asir_assert(ARG3(arg),O_N,"dp_weyl_nf_mod");
                   1854:   asir_assert(ARG4(arg),O_N,"dp_weyl_nf_mod");
                   1855:   if ( !(g = (DP)ARG1(arg)) ) {
                   1856:     *rp = 0; return;
                   1857:   }
                   1858:   b = BDY((LIST)ARG0(arg)); ps = (DP *)BDY((VECT)ARG2(arg));
1.2       noro     1859:   full = ZTOS((Q)ARG3(arg)); mod = ZTOS((Q)ARG4(arg));
1.1       noro     1860:   for ( n0 = n = 0; b; b = NEXT(b) ) {
                   1861:     NEXTNODE(n0,n);
1.2       noro     1862:     BDY(n) = (pointer)ZTOS((Q)BDY(b));
1.1       noro     1863:   }
                   1864:   if ( n0 )
                   1865:     NEXT(n) = 0;
                   1866:   do_weyl = 1;
                   1867:   dp_nf_mod(n0,g,ps,mod,full,rp);
                   1868:   do_weyl = 0;
                   1869: }
                   1870:
                   1871: void Pdp_true_nf_mod(NODE arg,LIST *rp)
                   1872: {
                   1873:   NODE b;
                   1874:   DP g,nm;
                   1875:   P dn;
                   1876:   DP *ps;
                   1877:   int mod,full;
                   1878:   NODE n;
                   1879:
                   1880:   do_weyl = 0;
                   1881:   asir_assert(ARG0(arg),O_LIST,"dp_nf_mod");
                   1882:   asir_assert(ARG1(arg),O_DP,"dp_nf_mod");
                   1883:   asir_assert(ARG2(arg),O_VECT,"dp_nf_mod");
                   1884:   asir_assert(ARG3(arg),O_N,"dp_nf_mod");
                   1885:   asir_assert(ARG4(arg),O_N,"dp_nf_mod");
                   1886:   if ( !(g = (DP)ARG1(arg)) ) {
                   1887:     nm = 0; dn = (P)ONEM;
                   1888:   } else {
                   1889:     b = BDY((LIST)ARG0(arg)); ps = (DP *)BDY((VECT)ARG2(arg));
1.2       noro     1890:     full = ZTOS((Q)ARG3(arg)); mod = ZTOS((Q)ARG4(arg));
1.1       noro     1891:     dp_true_nf_mod(b,g,ps,mod,full,&nm,&dn);
                   1892:   }
                   1893:   NEWNODE(n); BDY(n) = (pointer)nm;
                   1894:   NEWNODE(NEXT(n)); BDY(NEXT(n)) = (pointer)dn;
                   1895:   NEXT(NEXT(n)) = 0; MKLIST(*rp,n);
                   1896: }
                   1897:
                   1898: void Pdp_weyl_true_nf_and_quotient_marked(NODE arg,LIST *rp)
                   1899: {
                   1900:   NODE b,n;
                   1901:   DP *ps,*hps;
                   1902:   DP g;
                   1903:   DP nm;
                   1904:   VECT quo;
                   1905:   P dn;
                   1906:   int full;
                   1907:
                   1908:   do_weyl = 1; dp_fcoeffs = 0;
                   1909:   asir_assert(ARG0(arg),O_LIST,"dp_weyl_true_nf_and_quotient_marked");
                   1910:   asir_assert(ARG1(arg),O_DP,"dp_weyl_true_nf_and_quotient_marked");
                   1911:   asir_assert(ARG2(arg),O_VECT,"dp_weyl_true_nf_and_quotient_marked");
                   1912:   asir_assert(ARG3(arg),O_VECT,"dp_weyl_true_nf_and_quotient_marked");
                   1913:   if ( !(g = (DP)ARG1(arg)) ) {
                   1914:     nm = 0; dn = (P)ONE;
                   1915:   } else {
                   1916:     b = BDY((LIST)ARG0(arg));
                   1917:     ps = (DP *)BDY((VECT)ARG2(arg));
                   1918:     hps = (DP *)BDY((VECT)ARG3(arg));
                   1919:     NEWVECT(quo); quo->len = ((VECT)ARG2(arg))->len;
                   1920:     quo->body = (pointer *)dp_true_nf_and_quotient_marked(b,g,ps,hps,&nm,&dn);
                   1921:   }
                   1922:   n = mknode(3,nm,dn,quo);
                   1923:   MKLIST(*rp,n);
                   1924: }
                   1925:
                   1926: void Pdp_weyl_true_nf_and_quotient(NODE arg,LIST *rp)
                   1927: {
                   1928:   NODE narg = mknode(4,ARG0(arg),ARG1(arg),ARG2(arg),ARG2(arg));
                   1929:   Pdp_weyl_true_nf_and_quotient_marked(narg,rp);
                   1930: }
                   1931:
                   1932:
                   1933: void Pdp_weyl_true_nf_and_quotient_marked_mod(NODE arg,LIST *rp)
                   1934: {
                   1935:   NODE b,n;
                   1936:   DP *ps,*hps;
                   1937:   DP g;
                   1938:   DP nm;
                   1939:   VECT quo;
                   1940:   P dn;
                   1941:   int full,mod;
                   1942:
                   1943:   do_weyl = 1; dp_fcoeffs = 0;
                   1944:   asir_assert(ARG0(arg),O_LIST,"dp_weyl_true_nf_and_quotient_marked_mod");
                   1945:   asir_assert(ARG1(arg),O_DP,"dp_weyl_true_nf_and_quotient_marked_mod");
                   1946:   asir_assert(ARG2(arg),O_VECT,"dp_weyl_true_nf_and_quotient_marked_mod");
                   1947:   asir_assert(ARG3(arg),O_VECT,"dp_weyl_true_nf_and_quotient_marked_mod");
                   1948:   asir_assert(ARG4(arg),O_N,"dp_weyl_true_nf_and_quotient_marked_mod");
                   1949:   if ( !(g = (DP)ARG1(arg)) ) {
                   1950:     nm = 0; dn = (P)ONE;
                   1951:   } else {
                   1952:     b = BDY((LIST)ARG0(arg));
                   1953:     ps = (DP *)BDY((VECT)ARG2(arg));
                   1954:     hps = (DP *)BDY((VECT)ARG3(arg));
1.2       noro     1955:     mod = ZTOS((Q)ARG4(arg));
1.1       noro     1956:     NEWVECT(quo); quo->len = ((VECT)ARG2(arg))->len;
                   1957:     quo->body = (pointer *)dp_true_nf_and_quotient_marked_mod(b,g,ps,hps,mod,&nm,&dn);
                   1958:   }
                   1959:   n = mknode(3,nm,dn,quo);
                   1960:   MKLIST(*rp,n);
                   1961: }
                   1962:
                   1963: void Pdp_weyl_true_nf_and_quotient_mod(NODE arg,LIST *rp)
                   1964: {
                   1965:   NODE narg = mknode(5,ARG0(arg),ARG1(arg),ARG2(arg),ARG2(arg),ARG3(arg));
                   1966:   Pdp_weyl_true_nf_and_quotient_marked_mod(narg,rp);
                   1967: }
                   1968:
                   1969:
                   1970: void Pdp_tdiv(NODE arg,DP *rp)
                   1971: {
                   1972:   MP m,mr,mr0;
                   1973:   DP p;
                   1974:   Z d,q,r;
                   1975:   int sgn;
                   1976:
                   1977:   asir_assert(ARG0(arg),O_DP,"dp_tdiv");
                   1978:   asir_assert(ARG1(arg),O_N,"dp_tdiv");
                   1979:   p = (DP)ARG0(arg); d = (Z)ARG1(arg);
                   1980:   if ( !p )
                   1981:     *rp = 0;
                   1982:   else {
                   1983:     for ( mr0 = 0, m = BDY(p); m; m = NEXT(m) ) {
                   1984:       divqrz((Z)m->c,d,&q,&r);
                   1985:       if ( r ) {
                   1986:         *rp = 0; return;
                   1987:       } else {
                   1988:         NEXTMP(mr0,mr);
                   1989:         mr->c = (Obj)q; mr->dl = m->dl;
                   1990:       }
                   1991:     }
                   1992:     NEXT(mr) = 0; MKDP(p->nv,mr0,*rp); (*rp)->sugar = p->sugar;
                   1993:   }
                   1994: }
                   1995:
                   1996: void Pdp_red_coef(NODE arg,DP *rp)
                   1997: {
                   1998:   MP m,mr,mr0;
                   1999:   P q,r;
                   2000:   DP p;
                   2001:   P mod;
                   2002:
                   2003:   p = (DP)ARG0(arg); mod = (P)ARG1(arg);
                   2004:   asir_assert(p,O_DP,"dp_red_coef");
                   2005:   asir_assert(mod,O_P,"dp_red_coef");
                   2006:   if ( !p )
                   2007:     *rp = 0;
                   2008:   else {
                   2009:     for ( mr0 = 0, m = BDY(p); m; m = NEXT(m) ) {
                   2010:       divsrp(CO,(P)m->c,mod,&q,&r);
                   2011:       if ( r ) {
                   2012:         NEXTMP(mr0,mr); mr->c = (Obj)r; mr->dl = m->dl;
                   2013:       }
                   2014:     }
                   2015:     if ( mr0 ) {
                   2016:       NEXT(mr) = 0; MKDP(p->nv,mr0,*rp); (*rp)->sugar = p->sugar;
                   2017:     } else
                   2018:       *rp = 0;
                   2019:   }
                   2020: }
                   2021:
                   2022: void Pdp_redble(NODE arg,Z *rp)
                   2023: {
                   2024:   asir_assert(ARG0(arg),O_DP,"dp_redble");
                   2025:   asir_assert(ARG1(arg),O_DP,"dp_redble");
                   2026:   if ( dp_redble((DP)ARG0(arg),(DP)ARG1(arg)) )
                   2027:     *rp = ONE;
                   2028:   else
                   2029:     *rp = 0;
                   2030: }
                   2031:
1.9       noro     2032: void Pdpm_redble(NODE arg,Z *rp)
                   2033: {
                   2034:   asir_assert(ARG0(arg),O_DPM,"dpm_redble");
                   2035:   asir_assert(ARG1(arg),O_DPM,"dpm_redble");
                   2036:   if ( dpm_redble((DPM)ARG0(arg),(DPM)ARG1(arg)) )
                   2037:     *rp = ONE;
                   2038:   else
                   2039:     *rp = 0;
                   2040: }
                   2041:
1.11      noro     2042: void dpm_schreyer_base(LIST g,LIST *s);
1.19      noro     2043: void dpm_schreyer_base_zlist(LIST g,LIST *s);
1.11      noro     2044:
                   2045: void Pdpm_schreyer_base(NODE arg,LIST *rp)
                   2046: {
                   2047:   asir_assert(ARG0(arg),O_LIST,"dpm_schreyer_base");
1.19      noro     2048:   dpm_schreyer_base_zlist((LIST)ARG0(arg),rp);
1.11      noro     2049: }
                   2050:
1.19      noro     2051: void dpm_list_to_array(LIST g,VECT *psv,VECT *psiv);
                   2052:
                   2053: void Pdpm_list_to_array(NODE arg,LIST *rp)
                   2054: {
                   2055:   VECT psv,psiv;
                   2056:   NODE nd;
                   2057:
                   2058:   asir_assert(ARG0(arg),O_LIST,"dpm_list_to_array");
                   2059:   dpm_list_to_array((LIST)ARG0(arg),&psv,&psiv);
                   2060:   nd = mknode(2,psv,psiv);
                   2061:   MKLIST(*rp,nd);
                   2062: }
                   2063:
1.21      noro     2064: /* [quo,nf] = dpm_sp_nf(psv,psiv,i,j,top) */
                   2065: DPM dpm_sp_nf_zlist(VECT psv,VECT psiv,int i,int j,int top,DPM *nf);
1.19      noro     2066:
                   2067: void Pdpm_sp_nf(NODE arg,LIST *rp)
                   2068: {
                   2069:   VECT psv,psiv;
                   2070:   DPM quo,nf;
1.21      noro     2071:   Obj val;
                   2072:   int i,j,top;
1.19      noro     2073:   NODE nd;
                   2074:
                   2075:   asir_assert(ARG0(arg),O_VECT,"dpm_sp_nf"); psv = (VECT)ARG0(arg);
                   2076:   asir_assert(ARG1(arg),O_VECT,"dpm_sp_nf"); psiv = (VECT)ARG1(arg);
                   2077:   asir_assert(ARG2(arg),O_N,"dpm_sp_nf"); i = ZTOS((Q)ARG2(arg));
                   2078:   asir_assert(ARG3(arg),O_N,"dpm_sp_nf"); j = ZTOS((Q)ARG3(arg));
1.21      noro     2079:   if ( get_opt("top",&val) && val )
                   2080:     top = 1;
                   2081:   else
                   2082:     top = 0;
                   2083:   quo = dpm_sp_nf_zlist(psv,psiv,i,j,top,&nf);
1.19      noro     2084:   nd = mknode(2,quo,nf);
                   2085:   MKLIST(*rp,nd);
                   2086: }
                   2087:
                   2088: void dpm_insert_to_zlist(VECT psiv,int pos,int i);
                   2089:
                   2090: /* insert_to_zlist(indarray,dpm_hp(f),i) */
                   2091: void Pdpm_insert_to_zlist(NODE arg,VECT *rp)
                   2092: {
                   2093:   VECT psiv;
                   2094:   int i,pos;
                   2095:
                   2096:   asir_assert(ARG0(arg),O_VECT,"dpm_insert_to_zlist"); psiv = (VECT)ARG0(arg);
                   2097:   asir_assert(ARG1(arg),O_N,"dpm_insert_to_zlist"); pos = ZTOS((Q)ARG1(arg));
                   2098:   asir_assert(ARG2(arg),O_N,"dpm_insert_to_zlist"); i = ZTOS((Q)ARG2(arg));
                   2099:   dpm_insert_to_zlist(psiv,pos,i);
                   2100:   *rp = psiv;
                   2101: }
                   2102:
                   2103:
1.16      noro     2104: void dpm_simplify_syz(LIST m,LIST s,LIST *m1,LIST *s1,LIST *w1);
1.12      noro     2105:
                   2106: void Pdpm_simplify_syz(NODE arg,LIST *rp)
                   2107: {
1.16      noro     2108:   LIST s1,m1,w1;
1.12      noro     2109:   NODE t;
                   2110:
                   2111:   asir_assert(ARG0(arg),O_LIST,"dpm_simplify_syz");
                   2112:   asir_assert(ARG1(arg),O_LIST,"dpm_simplify_syz");
1.16      noro     2113:   dpm_simplify_syz((LIST)ARG0(arg),(LIST)ARG1(arg),&s1,&m1,&w1);
                   2114:   t = mknode(3,s1,m1,w1);
1.12      noro     2115:   MKLIST(*rp,t);
                   2116: }
                   2117:
                   2118:
1.1       noro     2119: void Pdp_red_mod(NODE arg,LIST *rp)
                   2120: {
                   2121:   DP h,r;
                   2122:   P dmy;
                   2123:   NODE n;
                   2124:
                   2125:   do_weyl = 0;
                   2126:   asir_assert(ARG0(arg),O_DP,"dp_red_mod");
                   2127:   asir_assert(ARG1(arg),O_DP,"dp_red_mod");
                   2128:   asir_assert(ARG2(arg),O_DP,"dp_red_mod");
                   2129:   asir_assert(ARG3(arg),O_N,"dp_red_mod");
1.2       noro     2130:   dp_red_mod((DP)ARG0(arg),(DP)ARG1(arg),(DP)ARG2(arg),ZTOS((Q)ARG3(arg)),
1.1       noro     2131:     &h,&r,&dmy);
                   2132:   NEWNODE(n); BDY(n) = (pointer)h;
                   2133:   NEWNODE(NEXT(n)); BDY(NEXT(n)) = (pointer)r;
                   2134:   NEXT(NEXT(n)) = 0; MKLIST(*rp,n);
                   2135: }
                   2136:
                   2137: void Pdp_subd(NODE arg,DP *rp)
                   2138: {
                   2139:   DP p1,p2;
                   2140:
                   2141:   p1 = (DP)ARG0(arg); p2 = (DP)ARG1(arg);
                   2142:   asir_assert(p1,O_DP,"dp_subd");
                   2143:   asir_assert(p2,O_DP,"dp_subd");
                   2144:   dp_subd(p1,p2,rp);
                   2145: }
                   2146:
                   2147: void Pdp_symb_add(NODE arg,DP *rp)
                   2148: {
                   2149:   DP p1,p2,r;
                   2150:   NODE s0;
                   2151:   MP mp0,mp;
                   2152:   int nv;
                   2153:
                   2154:   p1 = (DP)ARG0(arg); p2 = (DP)ARG1(arg);
                   2155:   asir_assert(p1,O_DP,"dp_symb_add");
                   2156:   asir_assert(p2,O_DP,"dp_symb_add");
                   2157:   if ( !p1 ) { *rp = p2; return; }
                   2158:   else if ( !p2 ) { *rp = p1; return; }
                   2159:   if ( p1->nv != p2->nv )
                   2160:     error("dp_sumb_add : invalid input");
                   2161:   nv = p1->nv;
                   2162:   s0 = symb_merge(dp_dllist(p1),dp_dllist(p2),nv);
                   2163:   for ( mp0 = 0; s0; s0 = NEXT(s0) ) {
                   2164:     NEXTMP(mp0,mp); mp->dl = (DL)BDY(s0); mp->c = (Obj)ONE;
                   2165:   }
                   2166:   NEXT(mp) = 0;
                   2167:   MKDP(nv,mp0,r); r->sugar = MAX(p1->sugar,p2->sugar);
                   2168:   *rp = r;
                   2169: }
                   2170:
                   2171: void Pdp_mul_trunc(NODE arg,DP *rp)
                   2172: {
                   2173:   DP p1,p2,p;
                   2174:
                   2175:   p1 = (DP)ARG0(arg); p2 = (DP)ARG1(arg); p = (DP)ARG2(arg);
                   2176:   asir_assert(p1,O_DP,"dp_mul_trunc");
                   2177:   asir_assert(p2,O_DP,"dp_mul_trunc");
                   2178:   asir_assert(p,O_DP,"dp_mul_trunc");
                   2179:   comm_muld_trunc(CO,p1,p2,BDY(p)->dl,rp);
                   2180: }
                   2181:
                   2182: void Pdp_quo(NODE arg,DP *rp)
                   2183: {
                   2184:   DP p1,p2;
                   2185:
                   2186:   p1 = (DP)ARG0(arg); p2 = (DP)ARG1(arg);
                   2187:   asir_assert(p1,O_DP,"dp_quo");
                   2188:   asir_assert(p2,O_DP,"dp_quo");
                   2189:   comm_quod(CO,p1,p2,rp);
                   2190: }
                   2191:
                   2192: void Pdp_weyl_mul(NODE arg,DP *rp)
                   2193: {
                   2194:   DP p1,p2;
                   2195:
                   2196:   p1 = (DP)ARG0(arg); p2 = (DP)ARG1(arg);
                   2197:   asir_assert(p1,O_DP,"dp_weyl_mul"); asir_assert(p2,O_DP,"dp_weyl_mul");
                   2198:   do_weyl = 1;
                   2199:   muld(CO,p1,p2,rp);
                   2200:   do_weyl = 0;
                   2201: }
                   2202:
                   2203: void Pdp_weyl_act(NODE arg,DP *rp)
                   2204: {
                   2205:   DP p1,p2;
                   2206:
                   2207:   p1 = (DP)ARG0(arg); p2 = (DP)ARG1(arg);
                   2208:   asir_assert(p1,O_DP,"dp_weyl_act"); asir_assert(p2,O_DP,"dp_weyl_act");
                   2209:   weyl_actd(CO,p1,p2,rp);
                   2210: }
                   2211:
                   2212:
                   2213: void Pdp_weyl_mul_mod(NODE arg,DP *rp)
                   2214: {
                   2215:   DP p1,p2;
                   2216:   Q m;
                   2217:
                   2218:   p1 = (DP)ARG0(arg); p2 = (DP)ARG1(arg); m = (Q)ARG2(arg);
                   2219:   asir_assert(p1,O_DP,"dp_weyl_mul_mod");
                   2220:   asir_assert(p2,O_DP,"dp_mul_mod");
                   2221:   asir_assert(m,O_N,"dp_mul_mod");
                   2222:   do_weyl = 1;
1.2       noro     2223:   mulmd(CO,ZTOS(m),p1,p2,rp);
1.1       noro     2224:   do_weyl = 0;
                   2225: }
                   2226:
                   2227: void Pdp_red(NODE arg,LIST *rp)
                   2228: {
                   2229:   NODE n;
                   2230:   DP head,rest,dmy1;
                   2231:   P dmy;
                   2232:
                   2233:   do_weyl = 0;
                   2234:   asir_assert(ARG0(arg),O_DP,"dp_red");
                   2235:   asir_assert(ARG1(arg),O_DP,"dp_red");
                   2236:   asir_assert(ARG2(arg),O_DP,"dp_red");
                   2237:   dp_red((DP)ARG0(arg),(DP)ARG1(arg),(DP)ARG2(arg),&head,&rest,&dmy,&dmy1);
                   2238:   NEWNODE(n); BDY(n) = (pointer)head;
                   2239:   NEWNODE(NEXT(n)); BDY(NEXT(n)) = (pointer)rest;
                   2240:   NEXT(NEXT(n)) = 0; MKLIST(*rp,n);
                   2241: }
                   2242:
                   2243: void Pdp_weyl_red(NODE arg,LIST *rp)
                   2244: {
                   2245:   NODE n;
                   2246:   DP head,rest,dmy1;
                   2247:   P dmy;
                   2248:
                   2249:   asir_assert(ARG0(arg),O_DP,"dp_weyl_red");
                   2250:   asir_assert(ARG1(arg),O_DP,"dp_weyl_red");
                   2251:   asir_assert(ARG2(arg),O_DP,"dp_weyl_red");
                   2252:   do_weyl = 1;
                   2253:   dp_red((DP)ARG0(arg),(DP)ARG1(arg),(DP)ARG2(arg),&head,&rest,&dmy,&dmy1);
                   2254:   do_weyl = 0;
                   2255:   NEWNODE(n); BDY(n) = (pointer)head;
                   2256:   NEWNODE(NEXT(n)); BDY(NEXT(n)) = (pointer)rest;
                   2257:   NEXT(NEXT(n)) = 0; MKLIST(*rp,n);
                   2258: }
                   2259:
                   2260: void Pdp_sp(NODE arg,DP *rp)
                   2261: {
                   2262:   DP p1,p2;
                   2263:
                   2264:   do_weyl = 0;
                   2265:   p1 = (DP)ARG0(arg); p2 = (DP)ARG1(arg);
                   2266:   asir_assert(p1,O_DP,"dp_sp"); asir_assert(p2,O_DP,"dp_sp");
                   2267:   dp_sp(p1,p2,rp);
                   2268: }
                   2269:
                   2270: void Pdp_weyl_sp(NODE arg,DP *rp)
                   2271: {
                   2272:   DP p1,p2;
                   2273:
                   2274:   p1 = (DP)ARG0(arg); p2 = (DP)ARG1(arg);
                   2275:   asir_assert(p1,O_DP,"dp_weyl_sp"); asir_assert(p2,O_DP,"dp_weyl_sp");
                   2276:   do_weyl = 1;
                   2277:   dp_sp(p1,p2,rp);
                   2278:   do_weyl = 0;
                   2279: }
                   2280:
1.9       noro     2281: void Pdpm_sp(NODE arg,Obj *rp)
1.1       noro     2282: {
1.9       noro     2283:   DPM  p1,p2,sp;
                   2284:   DP mul1,mul2;
                   2285:   Obj val;
                   2286:   NODE nd;
                   2287:   LIST l;
1.1       noro     2288:
                   2289:   do_weyl = 0;
                   2290:   p1 = (DPM)ARG0(arg); p2 = (DPM)ARG1(arg);
                   2291:   asir_assert(p1,O_DPM,"dpm_sp"); asir_assert(p2,O_DPM,"dpm_sp");
1.9       noro     2292:   dpm_sp(p1,p2,&sp,&mul1,&mul2);
                   2293:   if ( get_opt("coef",&val) && val ) {
                   2294:     nd = mknode(3,sp,mul1,mul2);
                   2295:     MKLIST(l,nd);
                   2296:     *rp = (Obj)l;
                   2297:   } else {
                   2298:     *rp = (Obj)sp;
                   2299:   }
1.1       noro     2300: }
                   2301:
1.9       noro     2302: void Pdpm_weyl_sp(NODE arg,Obj *rp)
1.1       noro     2303: {
1.9       noro     2304:   DPM  p1,p2,sp;
                   2305:   DP mul1,mul2;
                   2306:   Obj val;
                   2307:   NODE nd;
                   2308:   LIST l;
1.1       noro     2309:
                   2310:   p1 = (DPM)ARG0(arg); p2 = (DPM)ARG1(arg);
                   2311:   asir_assert(p1,O_DPM,"dpm_weyl_sp"); asir_assert(p2,O_DPM,"dpm_weyl_sp");
                   2312:   do_weyl = 1;
1.9       noro     2313:   dpm_sp(p1,p2,&sp,&mul1,&mul2);
1.1       noro     2314:   do_weyl = 0;
1.9       noro     2315:   if ( get_opt("coef",&val) && val ) {
                   2316:     nd = mknode(3,sp,mul1,mul2);
                   2317:     MKLIST(l,nd);
                   2318:     *rp = (Obj)l;
                   2319:   } else {
                   2320:     *rp = (Obj)sp;
                   2321:   }
1.1       noro     2322: }
                   2323:
                   2324: void Pdp_sp_mod(NODE arg,DP *rp)
                   2325: {
                   2326:   DP p1,p2;
                   2327:   int mod;
                   2328:
                   2329:   do_weyl = 0;
                   2330:   p1 = (DP)ARG0(arg); p2 = (DP)ARG1(arg);
                   2331:   asir_assert(p1,O_DP,"dp_sp_mod"); asir_assert(p2,O_DP,"dp_sp_mod");
                   2332:   asir_assert(ARG2(arg),O_N,"dp_sp_mod");
1.2       noro     2333:   mod = ZTOS((Q)ARG2(arg));
1.1       noro     2334:   dp_sp_mod(p1,p2,mod,rp);
                   2335: }
                   2336:
                   2337: void Pdp_lcm(NODE arg,DP *rp)
                   2338: {
                   2339:   int i,n,td;
                   2340:   DL d1,d2,d;
                   2341:   MP m;
                   2342:   DP p1,p2;
                   2343:
                   2344:   p1 = (DP)ARG0(arg); p2 = (DP)ARG1(arg);
                   2345:   asir_assert(p1,O_DP,"dp_lcm"); asir_assert(p2,O_DP,"dp_lcm");
                   2346:   n = p1->nv; d1 = BDY(p1)->dl; d2 = BDY(p2)->dl;
                   2347:   NEWDL(d,n);
                   2348:   for ( i = 0, td = 0; i < n; i++ ) {
                   2349:     d->d[i] = MAX(d1->d[i],d2->d[i]); td += MUL_WEIGHT(d->d[i],i);
                   2350:   }
                   2351:   d->td = td;
                   2352:   NEWMP(m); m->dl = d; m->c = (Obj)ONE; NEXT(m) = 0;
                   2353:   MKDP(n,m,*rp); (*rp)->sugar = td;  /* XXX */
                   2354: }
                   2355:
                   2356: void Pdp_hm(NODE arg,DP *rp)
                   2357: {
                   2358:   DP p;
                   2359:
                   2360:   p = (DP)ARG0(arg); asir_assert(p,O_DP,"dp_hm");
                   2361:   dp_hm(p,rp);
                   2362: }
                   2363:
                   2364: void Pdp_ht(NODE arg,DP *rp)
                   2365: {
                   2366:   DP p;
                   2367:   MP m,mr;
                   2368:
                   2369:   p = (DP)ARG0(arg); asir_assert(p,O_DP,"dp_ht");
                   2370:   dp_ht(p,rp);
                   2371: }
                   2372:
                   2373: void Pdp_hc(NODE arg,Obj *rp)
                   2374: {
                   2375:   asir_assert(ARG0(arg),O_DP,"dp_hc");
                   2376:   if ( !ARG0(arg) )
                   2377:     *rp = 0;
                   2378:   else
                   2379:     *rp = BDY((DP)ARG0(arg))->c;
                   2380: }
                   2381:
                   2382: void Pdp_rest(NODE arg,DP *rp)
                   2383: {
                   2384:   asir_assert(ARG0(arg),O_DP,"dp_rest");
                   2385:   if ( !ARG0(arg) )
                   2386:     *rp = 0;
                   2387:   else
                   2388:     dp_rest((DP)ARG0(arg),rp);
                   2389: }
                   2390:
                   2391: void Pdp_td(NODE arg,Z *rp)
                   2392: {
                   2393:   DP p;
                   2394:
                   2395:   p = (DP)ARG0(arg); asir_assert(p,O_DP,"dp_td");
                   2396:   if ( !p )
                   2397:     *rp = 0;
                   2398:   else
1.2       noro     2399:     STOZ(BDY(p)->dl->td,*rp);
1.1       noro     2400: }
                   2401:
1.15      noro     2402: void Pdpm_td(NODE arg,Z *rp)
                   2403: {
                   2404:   DPM p;
                   2405:
                   2406:   p = (DPM)ARG0(arg); asir_assert(p,O_DPM,"dpm_td");
                   2407:   if ( !p )
                   2408:     *rp = 0;
                   2409:   else
                   2410:     STOZ(BDY(p)->dl->td,*rp);
                   2411: }
                   2412:
1.1       noro     2413: void Pdp_sugar(NODE arg,Z *rp)
                   2414: {
                   2415:   DP p;
                   2416:
                   2417:   p = (DP)ARG0(arg); asir_assert(p,O_DP,"dp_sugar");
                   2418:   if ( !p )
                   2419:     *rp = 0;
                   2420:   else
1.2       noro     2421:     STOZ(p->sugar,*rp);
1.1       noro     2422: }
                   2423:
                   2424: void Pdp_initial_term(NODE arg,Obj *rp)
                   2425: {
                   2426:   struct order_spec *ord;
                   2427:   Num homo;
                   2428:   int modular,is_list;
                   2429:   LIST v,f,l,initiallist;
                   2430:   NODE n;
                   2431:
                   2432:   f = (LIST)ARG0(arg);
                   2433:   if ( f && OID(f) == O_LIST )
                   2434:     is_list = 1;
                   2435:   else {
                   2436:     n = mknode(1,f); MKLIST(l,n); f = l;
                   2437:     is_list = 0;
                   2438:   }
                   2439:   if ( current_option ) {
                   2440:     parse_gr_option(f,current_option,&v,&homo,&modular,&ord);
                   2441:     initd(ord);
                   2442:   } else
                   2443:     ord = dp_current_spec;
                   2444:   initiallist = dp_initial_term(f,ord);
                   2445:   if ( !is_list )
                   2446:     *rp = (Obj)BDY(BDY(initiallist));
                   2447:   else
                   2448:     *rp = (Obj)initiallist;
                   2449: }
                   2450:
                   2451: void Pdp_order(NODE arg,Obj *rp)
                   2452: {
                   2453:   struct order_spec *ord;
                   2454:   Num homo;
                   2455:   int modular,is_list;
                   2456:   LIST v,f,l,ordlist;
                   2457:   NODE n;
                   2458:
                   2459:   f = (LIST)ARG0(arg);
                   2460:   if ( f && OID(f) == O_LIST )
                   2461:     is_list = 1;
                   2462:   else {
                   2463:     n = mknode(1,f); MKLIST(l,n); f = l;
                   2464:     is_list = 0;
                   2465:   }
                   2466:   if ( current_option ) {
                   2467:     parse_gr_option(f,current_option,&v,&homo,&modular,&ord);
                   2468:     initd(ord);
                   2469:   } else
                   2470:     ord = dp_current_spec;
                   2471:   ordlist = dp_order(f,ord);
                   2472:   if ( !is_list )
                   2473:     *rp = (Obj)BDY(BDY(ordlist));
                   2474:   else
                   2475:     *rp = (Obj)ordlist;
                   2476: }
                   2477:
                   2478: void Pdp_set_sugar(NODE arg,Q *rp)
                   2479: {
                   2480:   DP p;
                   2481:   Q q;
                   2482:   int i;
                   2483:
                   2484:   p = (DP)ARG0(arg);
                   2485:   q = (Q)ARG1(arg);
                   2486:   if ( p && q) {
                   2487:     asir_assert(p,O_DP,"dp_set_sugar");
                   2488:     asir_assert(q,O_N, "dp_set_sugar");
1.2       noro     2489:     i = ZTOS(q);
1.1       noro     2490:     if (p->sugar < i) {
                   2491:       p->sugar = i;
                   2492:     }
                   2493:   }
                   2494:   *rp = 0;
                   2495: }
                   2496:
                   2497: void Pdp_cri1(NODE arg,Z *rp)
                   2498: {
                   2499:   DP p1,p2;
                   2500:   int *d1,*d2;
                   2501:   int i,n;
                   2502:
                   2503:   p1 = (DP)ARG0(arg); p2 = (DP)ARG1(arg);
                   2504:   asir_assert(p1,O_DP,"dp_cri1"); asir_assert(p2,O_DP,"dp_cri1");
                   2505:   n = p1->nv; d1 = BDY(p1)->dl->d; d2 = BDY(p2)->dl->d;
                   2506:   for ( i = 0; i < n; i++ )
                   2507:     if ( d1[i] > d2[i] )
                   2508:       break;
                   2509:   *rp = i == n ? ONE : 0;
                   2510: }
                   2511:
                   2512: void Pdp_cri2(NODE arg,Z *rp)
                   2513: {
                   2514:   DP p1,p2;
                   2515:   int *d1,*d2;
                   2516:   int i,n;
                   2517:
                   2518:   p1 = (DP)ARG0(arg); p2 = (DP)ARG1(arg);
                   2519:   asir_assert(p1,O_DP,"dp_cri2"); asir_assert(p2,O_DP,"dp_cri2");
                   2520:   n = p1->nv; d1 = BDY(p1)->dl->d; d2 = BDY(p2)->dl->d;
                   2521:   for ( i = 0; i < n; i++ )
                   2522:     if ( MIN(d1[i],d2[i]) >= 1 )
                   2523:       break;
                   2524:   *rp = i == n ? ONE : 0;
                   2525: }
                   2526:
                   2527: void Pdp_minp(NODE arg,LIST *rp)
                   2528: {
                   2529:   NODE tn,tn1,d,dd,dd0,p,tp;
                   2530:   LIST l,minp;
                   2531:   DP lcm,tlcm;
                   2532:   int s,ts;
                   2533:
                   2534:   asir_assert(ARG0(arg),O_LIST,"dp_minp");
                   2535:   d = BDY((LIST)ARG0(arg)); minp = (LIST)BDY(d);
                   2536:   p = BDY(minp); p = NEXT(NEXT(p)); lcm = (DP)BDY(p); p = NEXT(p);
                   2537:   if ( !ARG1(arg) ) {
1.2       noro     2538:     s = ZTOS((Q)BDY(p)); p = NEXT(p);
1.1       noro     2539:     for ( dd0 = 0, d = NEXT(d); d; d = NEXT(d) ) {
                   2540:       tp = BDY((LIST)BDY(d)); tp = NEXT(NEXT(tp));
                   2541:       tlcm = (DP)BDY(tp); tp = NEXT(tp);
1.2       noro     2542:       ts = ZTOS((Q)BDY(tp)); tp = NEXT(tp);
1.1       noro     2543:       NEXTNODE(dd0,dd);
                   2544:       if ( ts < s ) {
                   2545:         BDY(dd) = (pointer)minp;
                   2546:         minp = (LIST)BDY(d); lcm = tlcm; s = ts;
                   2547:       } else if ( ts == s ) {
                   2548:         if ( compd(CO,lcm,tlcm) > 0 ) {
                   2549:           BDY(dd) = (pointer)minp;
                   2550:           minp = (LIST)BDY(d); lcm = tlcm; s = ts;
                   2551:         } else
                   2552:           BDY(dd) = BDY(d);
                   2553:       } else
                   2554:         BDY(dd) = BDY(d);
                   2555:     }
                   2556:   } else {
                   2557:     for ( dd0 = 0, d = NEXT(d); d; d = NEXT(d) ) {
                   2558:       tp = BDY((LIST)BDY(d)); tp = NEXT(NEXT(tp));
                   2559:       tlcm = (DP)BDY(tp);
                   2560:       NEXTNODE(dd0,dd);
                   2561:       if ( compd(CO,lcm,tlcm) > 0 ) {
                   2562:         BDY(dd) = (pointer)minp; minp = (LIST)BDY(d); lcm = tlcm;
                   2563:       } else
                   2564:         BDY(dd) = BDY(d);
                   2565:     }
                   2566:   }
                   2567:   if ( dd0 )
                   2568:     NEXT(dd) = 0;
                   2569:   MKLIST(l,dd0); MKNODE(tn,l,0); MKNODE(tn1,minp,tn); MKLIST(*rp,tn1);
                   2570: }
                   2571:
                   2572: void Pdp_criB(NODE arg,LIST *rp)
                   2573: {
                   2574:   NODE d,ij,dd,ddd;
                   2575:   int i,j,s,n;
                   2576:   DP *ps;
                   2577:   DL ts,ti,tj,lij,tdl;
                   2578:
                   2579:   asir_assert(ARG0(arg),O_LIST,"dp_criB"); d = BDY((LIST)ARG0(arg));
1.2       noro     2580:   asir_assert(ARG1(arg),O_N,"dp_criB"); s = ZTOS((Q)ARG1(arg));
1.1       noro     2581:   asir_assert(ARG2(arg),O_VECT,"dp_criB"); ps = (DP *)BDY((VECT)ARG2(arg));
                   2582:   if ( !d )
                   2583:     *rp = (LIST)ARG0(arg);
                   2584:   else {
                   2585:     ts = BDY(ps[s])->dl;
                   2586:     n = ps[s]->nv;
                   2587:     NEWDL(tdl,n);
                   2588:     for ( dd = 0; d; d = NEXT(d) ) {
                   2589:       ij = BDY((LIST)BDY(d));
1.2       noro     2590:       i = ZTOS((Q)BDY(ij)); ij = NEXT(ij);
                   2591:       j = ZTOS((Q)BDY(ij)); ij = NEXT(ij);
1.1       noro     2592:       lij = BDY((DP)BDY(ij))->dl;
                   2593:       ti = BDY(ps[i])->dl; tj = BDY(ps[j])->dl;
                   2594:       if ( lij->td != lcm_of_DL(n,lij,ts,tdl)->td
                   2595:         || !dl_equal(n,lij,tdl)
                   2596:         || (lij->td == lcm_of_DL(n,ti,ts,tdl)->td
                   2597:           && dl_equal(n,tdl,lij))
                   2598:         || (lij->td == lcm_of_DL(n,tj,ts,tdl)->td
                   2599:           && dl_equal(n,tdl,lij)) ) {
                   2600:         MKNODE(ddd,BDY(d),dd);
                   2601:         dd = ddd;
                   2602:       }
                   2603:     }
                   2604:     MKLIST(*rp,dd);
                   2605:   }
                   2606: }
                   2607:
                   2608: void Pdp_nelim(NODE arg,Z *rp)
                   2609: {
                   2610:   if ( arg ) {
                   2611:     asir_assert(ARG0(arg),O_N,"dp_nelim");
1.2       noro     2612:     dp_nelim = ZTOS((Q)ARG0(arg));
1.1       noro     2613:   }
1.2       noro     2614:   STOZ(dp_nelim,*rp);
1.1       noro     2615: }
                   2616:
                   2617: void Pdp_mag(NODE arg,Z *rp)
                   2618: {
                   2619:   DP p;
                   2620:   int s;
                   2621:   MP m;
                   2622:
                   2623:   p = (DP)ARG0(arg);
                   2624:   asir_assert(p,O_DP,"dp_mag");
                   2625:   if ( !p )
                   2626:     *rp = 0;
                   2627:   else {
                   2628:     for ( s = 0, m = BDY(p); m; m = NEXT(m) )
                   2629:       s += p_mag((P)m->c);
1.2       noro     2630:     STOZ(s,*rp);
1.1       noro     2631:   }
                   2632: }
                   2633:
                   2634: /* kara_mag is no longer used. */
                   2635:
                   2636: void Pdp_set_kara(NODE arg,Z *rp)
                   2637: {
                   2638:   *rp = 0;
                   2639: }
                   2640:
                   2641: void Pdp_homo(NODE arg,DP *rp)
                   2642: {
                   2643:   asir_assert(ARG0(arg),O_DP,"dp_homo");
                   2644:   dp_homo((DP)ARG0(arg),rp);
                   2645: }
                   2646:
                   2647: void Pdp_dehomo(NODE arg,DP *rp)
                   2648: {
                   2649:   asir_assert(ARG0(arg),O_DP,"dp_dehomo");
                   2650:   dp_dehomo((DP)ARG0(arg),rp);
                   2651: }
                   2652:
1.16      noro     2653: void dpm_homo(DPM a,DPM *b);
                   2654: void dpm_dehomo(DPM a,DPM *b);
                   2655:
                   2656: void Pdpm_homo(NODE arg,DPM *rp)
                   2657: {
                   2658:   asir_assert(ARG0(arg),O_DPM,"dpm_homo");
                   2659:   dpm_homo((DPM)ARG0(arg),rp);
                   2660: }
                   2661:
                   2662: void Pdpm_dehomo(NODE arg,DPM *rp)
                   2663: {
                   2664:   asir_assert(ARG0(arg),O_DPM,"dpm_dehomo");
                   2665:   dpm_dehomo((DPM)ARG0(arg),rp);
                   2666: }
                   2667:
                   2668:
1.1       noro     2669: void Pdp_gr_flags(NODE arg,LIST *rp)
                   2670: {
                   2671:   Obj name,value;
                   2672:   NODE n;
                   2673:
                   2674:   if ( arg ) {
                   2675:     asir_assert(ARG0(arg),O_LIST,"dp_gr_flags");
                   2676:     n = BDY((LIST)ARG0(arg));
                   2677:     while ( n ) {
                   2678:       name = (Obj)BDY(n); n = NEXT(n);
                   2679:       if ( !n )
                   2680:         break;
                   2681:       else {
                   2682:         value = (Obj)BDY(n); n = NEXT(n);
                   2683:       }
                   2684:       dp_set_flag(name,value);
                   2685:     }
                   2686:   }
                   2687:   dp_make_flaglist(rp);
                   2688: }
                   2689:
                   2690: extern int DP_Print, DP_PrintShort;
                   2691:
                   2692: void Pdp_gr_print(NODE arg,Z *rp)
                   2693: {
                   2694:   Z q;
                   2695:   int s;
                   2696:
                   2697:   if ( arg ) {
                   2698:     asir_assert(ARG0(arg),O_N,"dp_gr_print");
                   2699:     q = (Z)ARG0(arg);
1.2       noro     2700:     s = ZTOS(q);
1.1       noro     2701:     switch ( s ) {
                   2702:       case 0:
                   2703:         DP_Print = 0; DP_PrintShort = 0;
                   2704:         break;
                   2705:       case 1:
                   2706:         DP_Print = 1;
                   2707:         break;
                   2708:       case 2:
                   2709:         DP_Print = 0; DP_PrintShort = 1;
                   2710:         break;
                   2711:       default:
                   2712:         DP_Print = s; DP_PrintShort = 0;
                   2713:         break;
                   2714:     }
                   2715:   } else {
                   2716:     if ( DP_Print )  {
1.2       noro     2717:       STOZ(1,q);
1.1       noro     2718:     } else if ( DP_PrintShort ) {
1.2       noro     2719:       STOZ(2,q);
1.1       noro     2720:     } else
                   2721:       q = 0;
                   2722:   }
                   2723:   *rp = q;
                   2724: }
                   2725:
                   2726: void parse_gr_option(LIST f,NODE opt,LIST *v,Num *homo,
                   2727:   int *modular,struct order_spec **ord)
                   2728: {
                   2729:   NODE t,p;
                   2730:   Z m,z;
                   2731:   char *key;
                   2732:   Obj value,dmy;
                   2733:   int ord_is_set = 0;
                   2734:   int modular_is_set = 0;
                   2735:   int homo_is_set = 0;
                   2736:   VL vl,vl0;
                   2737:   LIST vars;
                   2738:   char xiname[BUFSIZ];
                   2739:   NODE x0,x;
                   2740:   DP d;
                   2741:   P xi;
                   2742:   int nv,i;
                   2743:
                   2744:   /* extract vars */
                   2745:   vars = 0;
                   2746:   for ( t = opt; t; t = NEXT(t) ) {
                   2747:     p = BDY((LIST)BDY(t));
                   2748:     key = BDY((STRING)BDY(p));
                   2749:     value = (Obj)BDY(NEXT(p));
                   2750:     if ( !strcmp(key,"v") ) {
                   2751:       /* variable list */
                   2752:       vars = (LIST)value;
                   2753:       break;
                   2754:     }
                   2755:   }
                   2756:   if ( vars ) {
                   2757:     *v = vars; pltovl(vars,&vl);
                   2758:   } else {
                   2759:     for ( t = BDY(f); t; t = NEXT(t) )
                   2760:       if ( BDY(t) && OID((Obj)BDY(t))==O_DP )
                   2761:         break;
                   2762:     if ( t ) {
                   2763:       /* f is DP list */
                   2764:       /* create dummy var list */
                   2765:       d = (DP)BDY(t);
                   2766:       nv = NV(d);
                   2767:       for ( i = 0, vl0 = 0, x0 = 0; i < nv; i++ ) {
                   2768:         NEXTVL(vl0,vl);
                   2769:         NEXTNODE(x0,x);
                   2770:         sprintf(xiname,"x%d",i);
                   2771:         makevar(xiname,&xi);
                   2772:         x->body = (pointer)xi;
                   2773:         vl->v = VR((P)xi);
                   2774:       }
                   2775:       if ( vl0 ) {
                   2776:         NEXT(vl) = 0;
                   2777:         NEXT(x) = 0;
                   2778:       }
                   2779:       MKLIST(vars,x0);
                   2780:       *v = vars;
                   2781:       vl = vl0;
                   2782:     } else {
                   2783:       get_vars((Obj)f,&vl); vltopl(vl,v);
                   2784:     }
                   2785:   }
                   2786:
                   2787:   for ( t = opt; t; t = NEXT(t) ) {
                   2788:     p = BDY((LIST)BDY(t));
                   2789:     key = BDY((STRING)BDY(p));
                   2790:     value = (Obj)BDY(NEXT(p));
                   2791:     if ( !strcmp(key,"v") ) {
                   2792:       /* variable list; ignore */
                   2793:     } else if ( !strcmp(key,"order") ) {
                   2794:       /* order spec */
                   2795:       if ( !vl )
                   2796:         error("parse_gr_option : variables must be specified");
                   2797:       create_order_spec(vl,value,ord);
                   2798:       ord_is_set = 1;
                   2799:     } else if ( !strcmp(key,"block") ) {
                   2800:       create_order_spec(0,value,ord);
                   2801:       ord_is_set = 1;
                   2802:     } else if ( !strcmp(key,"matrix") ) {
                   2803:       create_order_spec(0,value,ord);
                   2804:       ord_is_set = 1;
                   2805:     } else if ( !strcmp(key,"sugarweight") ) {
                   2806:       /* weight */
                   2807:       Pdp_set_weight(NEXT(p),&dmy);
                   2808:     } else if ( !strcmp(key,"homo") ) {
                   2809:       *homo = (Num)value;
                   2810:       homo_is_set = 1;
                   2811:     } else if ( !strcmp(key,"trace") ) {
                   2812:       m = (Z)value;
1.2       noro     2813:       STOZ(0x80000000,z);
1.1       noro     2814:       if ( !m )
                   2815:         *modular = 0;
                   2816:       else if ( cmpz(m,z) >= 0 )
                   2817:         error("parse_gr_option : too large modulus");
                   2818:       else
1.2       noro     2819:         *modular = ZTOS(m);
1.1       noro     2820:       modular_is_set = 1;
                   2821:     } else if ( !strcmp(key,"dp") ) {
                   2822:       /* XXX : ignore */
                   2823:     } else
                   2824:       error("parse_gr_option : not implemented");
                   2825:   }
                   2826:   if ( !ord_is_set ) create_order_spec(0,0,ord);
                   2827:   if ( !modular_is_set ) *modular = 0;
                   2828:   if ( !homo_is_set ) *homo = 0;
                   2829: }
                   2830:
                   2831: void Pdp_gr_main(NODE arg,LIST *rp)
                   2832: {
                   2833:   LIST f,v;
                   2834:   VL vl;
                   2835:   Num homo;
                   2836:   Z m,z;
                   2837:   int modular,ac;
                   2838:   struct order_spec *ord;
                   2839:
                   2840:   do_weyl = 0;
                   2841:   asir_assert(ARG0(arg),O_LIST,"dp_gr_main");
                   2842:   f = (LIST)ARG0(arg);
                   2843:   f = remove_zero_from_list(f);
                   2844:   if ( !BDY(f) ) {
                   2845:     *rp = f; return;
                   2846:   }
                   2847:   if ( (ac = argc(arg)) == 5 ) {
                   2848:     asir_assert(ARG1(arg),O_LIST,"dp_gr_main");
                   2849:     asir_assert(ARG2(arg),O_N,"dp_gr_main");
                   2850:     asir_assert(ARG3(arg),O_N,"dp_gr_main");
                   2851:     v = (LIST)ARG1(arg);
                   2852:     homo = (Num)ARG2(arg);
                   2853:     m = (Z)ARG3(arg);
1.2       noro     2854:     STOZ(0x80000000,z);
1.1       noro     2855:     if ( !m )
                   2856:       modular = 0;
                   2857:     else if ( cmpz(m,z) >= 0 )
                   2858:       error("dp_gr_main : too large modulus");
                   2859:     else
1.2       noro     2860:       modular = ZTOS(m);
1.1       noro     2861:     create_order_spec(0,ARG4(arg),&ord);
                   2862:   } else if ( current_option )
                   2863:     parse_gr_option(f,current_option,&v,&homo,&modular,&ord);
                   2864:   else if ( ac == 1 )
                   2865:     parse_gr_option(f,0,&v,&homo,&modular,&ord);
                   2866:   else
                   2867:     error("dp_gr_main : invalid argument");
                   2868:   dp_gr_main(f,v,homo,modular,0,ord,rp);
                   2869: }
                   2870:
                   2871: void Pdp_interreduce(NODE arg,LIST *rp)
                   2872: {
                   2873:   LIST f,v;
                   2874:   VL vl;
                   2875:   int ac;
                   2876:   struct order_spec *ord;
                   2877:
                   2878:   do_weyl = 0;
                   2879:   asir_assert(ARG0(arg),O_LIST,"dp_interreduce");
                   2880:   f = (LIST)ARG0(arg);
                   2881:   f = remove_zero_from_list(f);
                   2882:   if ( !BDY(f) ) {
                   2883:     *rp = f; return;
                   2884:   }
                   2885:   if ( (ac = argc(arg)) == 3 ) {
                   2886:     asir_assert(ARG1(arg),O_LIST,"dp_interreduce");
                   2887:     v = (LIST)ARG1(arg);
                   2888:     create_order_spec(0,ARG2(arg),&ord);
                   2889:   }
                   2890:   dp_interreduce(f,v,0,ord,rp);
                   2891: }
                   2892:
                   2893: void Pdp_gr_f_main(NODE arg,LIST *rp)
                   2894: {
                   2895:   LIST f,v;
                   2896:   Num homo;
                   2897:   int m,field,t;
                   2898:   struct order_spec *ord;
                   2899:   NODE n;
                   2900:
                   2901:   do_weyl = 0;
                   2902:   asir_assert(ARG0(arg),O_LIST,"dp_gr_f_main");
                   2903:   asir_assert(ARG1(arg),O_LIST,"dp_gr_f_main");
                   2904:   asir_assert(ARG2(arg),O_N,"dp_gr_f_main");
                   2905:   f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
                   2906:   f = remove_zero_from_list(f);
                   2907:   if ( !BDY(f) ) {
                   2908:     *rp = f; return;
                   2909:   }
                   2910:   homo = (Num)ARG2(arg);
                   2911: #if 0
                   2912:   asir_assert(ARG3(arg),O_N,"dp_gr_f_main");
1.2       noro     2913:   m = ZTOS((Q)ARG3(arg));
1.1       noro     2914:   if ( m )
                   2915:     error("dp_gr_f_main : trace lifting is not implemented yet");
                   2916:   create_order_spec(0,ARG4(arg),&ord);
                   2917: #else
                   2918:   m = 0;
                   2919:   create_order_spec(0,ARG3(arg),&ord);
                   2920: #endif
                   2921:   field = 0;
                   2922:   for ( n = BDY(f); n; n = NEXT(n) ) {
                   2923:     t = get_field_type(BDY(n));
                   2924:     if ( !t )
                   2925:       continue;
                   2926:     if ( t < 0 )
                   2927:       error("dp_gr_f_main : incosistent coefficients");
                   2928:     if ( !field )
                   2929:       field = t;
                   2930:     else if ( t != field )
                   2931:       error("dp_gr_f_main : incosistent coefficients");
                   2932:   }
                   2933:   dp_gr_main(f,v,homo,m?1:0,field,ord,rp);
                   2934: }
                   2935:
                   2936: void Pdp_f4_main(NODE arg,LIST *rp)
                   2937: {
                   2938:   LIST f,v;
                   2939:   struct order_spec *ord;
                   2940:
                   2941:   do_weyl = 0;
                   2942:   asir_assert(ARG0(arg),O_LIST,"dp_f4_main");
                   2943:   asir_assert(ARG1(arg),O_LIST,"dp_f4_main");
                   2944:   f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
                   2945:   f = remove_zero_from_list(f);
                   2946:   if ( !BDY(f) ) {
                   2947:     *rp = f; return;
                   2948:   }
                   2949:   create_order_spec(0,ARG2(arg),&ord);
                   2950:   dp_f4_main(f,v,ord,rp);
                   2951: }
                   2952:
                   2953: /* dp_gr_checklist(list of dp) */
                   2954:
                   2955: void Pdp_gr_checklist(NODE arg,LIST *rp)
                   2956: {
                   2957:   VECT g;
                   2958:   LIST dp;
                   2959:   NODE r;
                   2960:   int n;
                   2961:
                   2962:   do_weyl = 0;
                   2963:   asir_assert(ARG0(arg),O_LIST,"dp_gr_checklist");
                   2964:   asir_assert(ARG1(arg),O_N,"dp_gr_checklist");
1.2       noro     2965:   n = ZTOS((Q)ARG1(arg));
1.1       noro     2966:   gbcheck_list(BDY((LIST)ARG0(arg)),n,&g,&dp);
                   2967:   r = mknode(2,g,dp);
                   2968:   MKLIST(*rp,r);
                   2969: }
                   2970:
                   2971: void Pdp_f4_mod_main(NODE arg,LIST *rp)
                   2972: {
                   2973:   LIST f,v;
                   2974:   int m;
                   2975:   struct order_spec *ord;
                   2976:
                   2977:   do_weyl = 0;
                   2978:   asir_assert(ARG0(arg),O_LIST,"dp_f4_mod_main");
                   2979:   asir_assert(ARG1(arg),O_LIST,"dp_f4_mod_main");
                   2980:   asir_assert(ARG2(arg),O_N,"dp_f4_mod_main");
1.2       noro     2981:   f = (LIST)ARG0(arg); v = (LIST)ARG1(arg); m = ZTOS((Q)ARG2(arg));
1.1       noro     2982:   f = remove_zero_from_list(f);
                   2983:   if ( !BDY(f) ) {
                   2984:     *rp = f; return;
                   2985:   }
                   2986:   if ( !m )
                   2987:     error("dp_f4_mod_main : invalid argument");
                   2988:   create_order_spec(0,ARG3(arg),&ord);
                   2989:   dp_f4_mod_main(f,v,m,ord,rp);
                   2990: }
                   2991:
                   2992: void Pdp_gr_mod_main(NODE arg,LIST *rp)
                   2993: {
                   2994:   LIST f,v;
                   2995:   Num homo;
                   2996:   int m;
                   2997:   struct order_spec *ord;
                   2998:
                   2999:   do_weyl = 0;
                   3000:   asir_assert(ARG0(arg),O_LIST,"dp_gr_mod_main");
                   3001:   asir_assert(ARG1(arg),O_LIST,"dp_gr_mod_main");
                   3002:   asir_assert(ARG2(arg),O_N,"dp_gr_mod_main");
                   3003:   asir_assert(ARG3(arg),O_N,"dp_gr_mod_main");
                   3004:   f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
                   3005:   f = remove_zero_from_list(f);
                   3006:   if ( !BDY(f) ) {
                   3007:     *rp = f; return;
                   3008:   }
1.2       noro     3009:   homo = (Num)ARG2(arg); m = ZTOS((Q)ARG3(arg));
1.1       noro     3010:   if ( !m )
                   3011:     error("dp_gr_mod_main : invalid argument");
                   3012:   create_order_spec(0,ARG4(arg),&ord);
                   3013:   dp_gr_mod_main(f,v,homo,m,ord,rp);
                   3014: }
                   3015:
                   3016: void Psetmod_ff(NODE node, Obj *val);
                   3017:
                   3018: void Pnd_f4(NODE arg,LIST *rp)
                   3019: {
                   3020:   LIST f,v;
                   3021:   int m,homo,retdp,ac;
                   3022:   Obj val;
                   3023:   Z mq,z;
                   3024:   Num nhomo;
                   3025:   NODE node;
                   3026:   struct order_spec *ord;
                   3027:
                   3028:   do_weyl = 0;
                   3029:   nd_rref2 = 0;
                   3030:   retdp = 0;
                   3031:   if ( (ac = argc(arg)) == 4 ) {
                   3032:     asir_assert(ARG0(arg),O_LIST,"nd_f4");
                   3033:     asir_assert(ARG1(arg),O_LIST,"nd_f4");
                   3034:     asir_assert(ARG2(arg),O_N,"nd_f4");
                   3035:     f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
                   3036:     f = remove_zero_from_list(f);
                   3037:     if ( !BDY(f) ) {
                   3038:       *rp = f; return;
                   3039:     }
                   3040:       mq = (Z)ARG2(arg);
1.2       noro     3041:       STOZ((unsigned long)0x40000000,z);
1.1       noro     3042:       if ( cmpz(mq,z) >= 0 ) {
                   3043:         node = mknode(1,mq);
                   3044:         Psetmod_ff(node,&val);
                   3045:         m = -2;
                   3046:     } else
1.2       noro     3047:       m = ZTOS(mq);
1.1       noro     3048:     create_order_spec(0,ARG3(arg),&ord);
                   3049:     homo = 0;
                   3050:     if ( get_opt("homo",&val) && val ) homo = 1;
                   3051:     if ( get_opt("dp",&val) && val ) retdp = 1;
                   3052:     if ( get_opt("rref2",&val) && val ) nd_rref2 = 1;
                   3053:   } else if ( ac == 1 ) {
                   3054:     f = (LIST)ARG0(arg);
                   3055:     parse_gr_option(f,current_option,&v,&nhomo,&m,&ord);
1.2       noro     3056:     homo = ZTOS((Q)nhomo);
1.1       noro     3057:     if ( get_opt("dp",&val) && val ) retdp = 1;
                   3058:     if ( get_opt("rref2",&val) && val ) nd_rref2 = 1;
                   3059:   } else
                   3060:     error("nd_f4 : invalid argument");
                   3061:   nd_gr(f,v,m,homo,retdp,1,ord,rp);
                   3062: }
                   3063:
                   3064: void Pnd_gr(NODE arg,LIST *rp)
                   3065: {
                   3066:   LIST f,v;
                   3067:   int m,homo,retdp,ac;
                   3068:   Obj val;
                   3069:   Z mq,z;
                   3070:   Num nhomo;
                   3071:   NODE node;
                   3072:   struct order_spec *ord;
                   3073:
                   3074:   do_weyl = 0;
                   3075:   retdp = 0;
                   3076:   if ( (ac=argc(arg)) == 4 ) {
                   3077:     asir_assert(ARG0(arg),O_LIST,"nd_gr");
                   3078:     asir_assert(ARG1(arg),O_LIST,"nd_gr");
                   3079:     asir_assert(ARG2(arg),O_N,"nd_gr");
                   3080:     f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
                   3081:     f = remove_zero_from_list(f);
                   3082:     if ( !BDY(f) ) {
                   3083:       *rp = f; return;
                   3084:     }
                   3085:       mq = (Z)ARG2(arg);
1.2       noro     3086:       STOZ(0x40000000,z);
1.1       noro     3087:       if ( cmpz(mq,z) >= 0 ) {
                   3088:         node = mknode(1,mq);
                   3089:         Psetmod_ff(node,&val);
                   3090:         m = -2;
                   3091:       } else
1.2       noro     3092:         m = ZTOS(mq);
1.1       noro     3093:     create_order_spec(0,ARG3(arg),&ord);
                   3094:     homo = 0;
                   3095:     if ( get_opt("homo",&val) && val ) homo = 1;
                   3096:     if ( get_opt("dp",&val) && val ) retdp = 1;
                   3097:   } else if ( ac == 1 ) {
                   3098:     f = (LIST)ARG0(arg);
                   3099:     parse_gr_option(f,current_option,&v,&nhomo,&m,&ord);
1.2       noro     3100:     homo = ZTOS((Q)nhomo);
1.1       noro     3101:     if ( get_opt("dp",&val) && val ) retdp = 1;
                   3102:   } else
                   3103:     error("nd_gr : invalid argument");
                   3104:   nd_gr(f,v,m,homo,retdp,0,ord,rp);
                   3105: }
                   3106:
1.25      noro     3107: void nd_sba(LIST f,LIST v,int m,int homo,int retdp,int f4,struct order_spec *ord,LIST *rp);
1.24      noro     3108:
                   3109: void Pnd_sba(NODE arg,LIST *rp)
                   3110: {
                   3111:   LIST f,v;
                   3112:   int m,homo,retdp,ac;
                   3113:   Obj val;
                   3114:   Z mq,z;
                   3115:   Num nhomo;
                   3116:   NODE node;
1.28      noro     3117:   struct order_spec *ord,*current_spec;
1.24      noro     3118:
1.28      noro     3119:   current_spec = dp_current_spec;
1.24      noro     3120:   do_weyl = 0;
                   3121:   retdp = 0;
                   3122:   if ( (ac=argc(arg)) == 4 ) {
                   3123:     asir_assert(ARG0(arg),O_LIST,"nd_sba");
                   3124:     asir_assert(ARG1(arg),O_LIST,"nd_sba");
                   3125:     asir_assert(ARG2(arg),O_N,"nd_sba");
                   3126:     f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
                   3127:     f = remove_zero_from_list(f);
                   3128:     if ( !BDY(f) ) {
                   3129:       *rp = f; return;
                   3130:     }
                   3131:       mq = (Z)ARG2(arg);
                   3132:       STOZ(0x40000000,z);
                   3133:       if ( cmpz(mq,z) >= 0 ) {
                   3134:         node = mknode(1,mq);
                   3135:         Psetmod_ff(node,&val);
                   3136:         m = -2;
                   3137:       } else
                   3138:         m = ZTOS(mq);
                   3139:     create_order_spec(0,ARG3(arg),&ord);
                   3140:     homo = 0;
                   3141:     if ( get_opt("homo",&val) && val ) homo = 1;
                   3142:     if ( get_opt("dp",&val) && val ) retdp = 1;
                   3143:   } else if ( ac == 1 ) {
                   3144:     f = (LIST)ARG0(arg);
                   3145:     parse_gr_option(f,current_option,&v,&nhomo,&m,&ord);
                   3146:     homo = ZTOS((Q)nhomo);
                   3147:     if ( get_opt("dp",&val) && val ) retdp = 1;
                   3148:   } else
                   3149:     error("nd_gr : invalid argument");
1.25      noro     3150:   nd_sba(f,v,m,homo,retdp,0,ord,rp);
1.28      noro     3151:   initd(current_spec);
1.25      noro     3152: }
                   3153:
1.27      noro     3154: void Pnd_weyl_sba(NODE arg,LIST *rp)
                   3155: {
                   3156:   LIST f,v;
                   3157:   int m,homo,retdp,ac;
                   3158:   Obj val;
                   3159:   Z mq,z;
                   3160:   Num nhomo;
                   3161:   NODE node;
                   3162:   struct order_spec *ord;
                   3163:
                   3164:   do_weyl = 1;
                   3165:   retdp = 0;
                   3166:   if ( (ac=argc(arg)) == 4 ) {
                   3167:     asir_assert(ARG0(arg),O_LIST,"nd_sba");
                   3168:     asir_assert(ARG1(arg),O_LIST,"nd_sba");
                   3169:     asir_assert(ARG2(arg),O_N,"nd_sba");
                   3170:     f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
                   3171:     f = remove_zero_from_list(f);
                   3172:     if ( !BDY(f) ) {
                   3173:       *rp = f; do_weyl = 0; return;
                   3174:     }
                   3175:       mq = (Z)ARG2(arg);
                   3176:       STOZ(0x40000000,z);
                   3177:       if ( cmpz(mq,z) >= 0 ) {
                   3178:         node = mknode(1,mq);
                   3179:         Psetmod_ff(node,&val);
                   3180:         m = -2;
                   3181:       } else
                   3182:         m = ZTOS(mq);
                   3183:     create_order_spec(0,ARG3(arg),&ord);
                   3184:     homo = 0;
                   3185:     if ( get_opt("homo",&val) && val ) homo = 1;
                   3186:     if ( get_opt("dp",&val) && val ) retdp = 1;
                   3187:   } else if ( ac == 1 ) {
                   3188:     f = (LIST)ARG0(arg);
                   3189:     parse_gr_option(f,current_option,&v,&nhomo,&m,&ord);
                   3190:     homo = ZTOS((Q)nhomo);
                   3191:     if ( get_opt("dp",&val) && val ) retdp = 1;
                   3192:   } else
                   3193:     error("nd_gr : invalid argument");
                   3194:   nd_sba(f,v,m,homo,retdp,0,ord,rp);
                   3195:   do_weyl = 0;
                   3196: }
                   3197:
1.25      noro     3198: void Pnd_sba_f4(NODE arg,LIST *rp)
                   3199: {
                   3200:   LIST f,v;
                   3201:   int m,homo,retdp,ac;
                   3202:   Obj val;
                   3203:   Z mq,z;
                   3204:   Num nhomo;
                   3205:   NODE node;
                   3206:   struct order_spec *ord;
                   3207:
                   3208:   do_weyl = 0;
                   3209:   retdp = 0;
                   3210:   if ( (ac=argc(arg)) == 4 ) {
                   3211:     asir_assert(ARG0(arg),O_LIST,"nd_sba");
                   3212:     asir_assert(ARG1(arg),O_LIST,"nd_sba");
                   3213:     asir_assert(ARG2(arg),O_N,"nd_sba");
                   3214:     f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
                   3215:     f = remove_zero_from_list(f);
                   3216:     if ( !BDY(f) ) {
                   3217:       *rp = f; return;
                   3218:     }
                   3219:       mq = (Z)ARG2(arg);
                   3220:       STOZ(0x40000000,z);
                   3221:       if ( cmpz(mq,z) >= 0 ) {
                   3222:         node = mknode(1,mq);
                   3223:         Psetmod_ff(node,&val);
                   3224:         m = -2;
                   3225:       } else
                   3226:         m = ZTOS(mq);
                   3227:     create_order_spec(0,ARG3(arg),&ord);
                   3228:     homo = 0;
                   3229:     if ( get_opt("homo",&val) && val ) homo = 1;
                   3230:     if ( get_opt("dp",&val) && val ) retdp = 1;
                   3231:   } else if ( ac == 1 ) {
                   3232:     f = (LIST)ARG0(arg);
                   3233:     parse_gr_option(f,current_option,&v,&nhomo,&m,&ord);
                   3234:     homo = ZTOS((Q)nhomo);
                   3235:     if ( get_opt("dp",&val) && val ) retdp = 1;
                   3236:   } else
                   3237:     error("nd_gr : invalid argument");
                   3238:   nd_sba(f,v,m,homo,retdp,1,ord,rp);
1.24      noro     3239: }
                   3240:
1.1       noro     3241: void Pnd_gr_postproc(NODE arg,LIST *rp)
                   3242: {
                   3243:   LIST f,v;
                   3244:   int m,do_check;
                   3245:   Z mq,z;
                   3246:   Obj val;
                   3247:   NODE node;
                   3248:   struct order_spec *ord;
                   3249:
                   3250:   do_weyl = 0;
                   3251:   asir_assert(ARG0(arg),O_LIST,"nd_gr");
                   3252:   asir_assert(ARG1(arg),O_LIST,"nd_gr");
                   3253:   asir_assert(ARG2(arg),O_N,"nd_gr");
                   3254:   f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
                   3255:   f = remove_zero_from_list(f);
                   3256:   if ( !BDY(f) ) {
                   3257:     *rp = f; return;
                   3258:   }
                   3259:   mq = (Z)ARG2(arg);
1.2       noro     3260:   STOZ(0x40000000,z);
1.1       noro     3261:   if ( cmpz(mq,z) >= 0 ) {
                   3262:     node = mknode(1,mq);
                   3263:     Psetmod_ff(node,&val);
                   3264:     m = -2;
                   3265:   } else
1.2       noro     3266:     m = ZTOS(mq);
1.1       noro     3267:   create_order_spec(0,ARG3(arg),&ord);
                   3268:   do_check = ARG4(arg) ? 1 : 0;
                   3269:   nd_gr_postproc(f,v,m,ord,do_check,rp);
                   3270: }
                   3271:
                   3272: void Pnd_gr_recompute_trace(NODE arg,LIST *rp)
                   3273: {
                   3274:   LIST f,v,tlist;
                   3275:   int m;
                   3276:   struct order_spec *ord;
                   3277:
                   3278:   do_weyl = 0;
                   3279:   asir_assert(ARG0(arg),O_LIST,"nd_gr_recompute_trace");
                   3280:   asir_assert(ARG1(arg),O_LIST,"nd_gr_recompute_trace");
                   3281:   asir_assert(ARG2(arg),O_N,"nd_gr_recompute_trace");
                   3282:   f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
1.2       noro     3283:   m = ZTOS((Q)ARG2(arg));
1.1       noro     3284:   create_order_spec(0,ARG3(arg),&ord);
                   3285:   tlist = (LIST)ARG4(arg);
                   3286:   nd_gr_recompute_trace(f,v,m,ord,tlist,rp);
                   3287: }
                   3288:
                   3289: Obj nd_btog_one(LIST f,LIST v,int m,struct order_spec *ord,LIST tlist,int pos);
                   3290: Obj nd_btog(LIST f,LIST v,int m,struct order_spec *ord,LIST tlist);
                   3291:
                   3292: void Pnd_btog(NODE arg,Obj *rp)
                   3293: {
                   3294:   LIST f,v,tlist;
                   3295:   Z mq,z;
                   3296:   int m,ac,pos;
                   3297:   struct order_spec *ord;
                   3298:   NODE node;
                   3299:   pointer val;
                   3300:
                   3301:   do_weyl = 0;
                   3302:   asir_assert(ARG0(arg),O_LIST,"nd_btog");
                   3303:   asir_assert(ARG1(arg),O_LIST,"nd_btog");
                   3304:   asir_assert(ARG2(arg),O_N,"nd_btog");
                   3305:   f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
                   3306:   mq = (Z)ARG2(arg);
1.2       noro     3307:   STOZ(0x40000000,z);
1.1       noro     3308:   if ( cmpz(mq,z) >= 0 ) {
                   3309:     node = mknode(1,mq);
                   3310:     Psetmod_ff(node,(Obj *)&val);
                   3311:     m = -2;
                   3312:   } else
1.2       noro     3313:     m = ZTOS(mq);
1.1       noro     3314:   create_order_spec(0,ARG3(arg),&ord);
                   3315:   tlist = (LIST)ARG4(arg);
                   3316:   if ( (ac = argc(arg)) == 6 ) {
                   3317:     asir_assert(ARG5(arg),O_N,"nd_btog");
1.2       noro     3318:     pos = ZTOS((Q)ARG5(arg));
1.1       noro     3319:     *rp = nd_btog_one(f,v,m,ord,tlist,pos);
                   3320:   } else if ( ac == 5 )
                   3321:     *rp = nd_btog(f,v,m,ord,tlist);
                   3322:   else
                   3323:     error("nd_btog : argument mismatch");
                   3324: }
                   3325:
                   3326: void Pnd_weyl_gr_postproc(NODE arg,LIST *rp)
                   3327: {
                   3328:   LIST f,v;
                   3329:   int m,do_check;
                   3330:   struct order_spec *ord;
                   3331:
                   3332:   do_weyl = 1;
                   3333:   asir_assert(ARG0(arg),O_LIST,"nd_gr");
                   3334:   asir_assert(ARG1(arg),O_LIST,"nd_gr");
                   3335:   asir_assert(ARG2(arg),O_N,"nd_gr");
                   3336:   f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
                   3337:   f = remove_zero_from_list(f);
                   3338:   if ( !BDY(f) ) {
                   3339:     *rp = f; do_weyl = 0; return;
                   3340:   }
1.2       noro     3341:   m = ZTOS((Q)ARG2(arg));
1.1       noro     3342:   create_order_spec(0,ARG3(arg),&ord);
                   3343:   do_check = ARG4(arg) ? 1 : 0;
                   3344:   nd_gr_postproc(f,v,m,ord,do_check,rp);
                   3345:   do_weyl = 0;
                   3346: }
                   3347:
                   3348: void Pnd_gr_trace(NODE arg,LIST *rp)
                   3349: {
                   3350:   LIST f,v;
                   3351:   int m,homo,ac;
1.9       noro     3352:   Obj val;
                   3353:   int retdp;
1.1       noro     3354:   Num nhomo;
                   3355:   struct order_spec *ord;
                   3356:
                   3357:   do_weyl = 0;
                   3358:   if ( (ac = argc(arg)) == 5 ) {
                   3359:     asir_assert(ARG0(arg),O_LIST,"nd_gr_trace");
                   3360:     asir_assert(ARG1(arg),O_LIST,"nd_gr_trace");
                   3361:     asir_assert(ARG2(arg),O_N,"nd_gr_trace");
                   3362:     asir_assert(ARG3(arg),O_N,"nd_gr_trace");
                   3363:     f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
                   3364:     f = remove_zero_from_list(f);
                   3365:     if ( !BDY(f) ) {
                   3366:       *rp = f; return;
                   3367:     }
1.2       noro     3368:     homo = ZTOS((Q)ARG2(arg));
                   3369:     m = ZTOS((Q)ARG3(arg));
1.1       noro     3370:     create_order_spec(0,ARG4(arg),&ord);
                   3371:   } else if ( ac == 1 ) {
                   3372:     f = (LIST)ARG0(arg);
                   3373:     parse_gr_option(f,current_option,&v,&nhomo,&m,&ord);
1.2       noro     3374:     homo = ZTOS((Q)nhomo);
1.1       noro     3375:   } else
                   3376:     error("nd_gr_trace : invalid argument");
1.9       noro     3377:   retdp = 0;
                   3378:   if ( get_opt("dp",&val) && val ) retdp = 1;
                   3379:   nd_gr_trace(f,v,m,homo,retdp,0,ord,rp);
1.1       noro     3380: }
                   3381:
                   3382: void Pnd_f4_trace(NODE arg,LIST *rp)
                   3383: {
                   3384:   LIST f,v;
                   3385:   int m,homo,ac;
1.9       noro     3386:   int retdp;
                   3387:   Obj val;
1.1       noro     3388:   Num nhomo;
                   3389:   struct order_spec *ord;
                   3390:
                   3391:   do_weyl = 0;
                   3392:   if ( (ac = argc(arg))==5 ) {
                   3393:     asir_assert(ARG0(arg),O_LIST,"nd_f4_trace");
                   3394:     asir_assert(ARG1(arg),O_LIST,"nd_f4_trace");
                   3395:     asir_assert(ARG2(arg),O_N,"nd_f4_trace");
                   3396:     asir_assert(ARG3(arg),O_N,"nd_f4_trace");
                   3397:     f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
                   3398:     f = remove_zero_from_list(f);
                   3399:     if ( !BDY(f) ) {
                   3400:       *rp = f; return;
                   3401:     }
1.2       noro     3402:     homo = ZTOS((Q)ARG2(arg));
                   3403:     m = ZTOS((Q)ARG3(arg));
1.1       noro     3404:     create_order_spec(0,ARG4(arg),&ord);
                   3405:   } else if ( ac == 1 ) {
                   3406:     f = (LIST)ARG0(arg);
                   3407:     parse_gr_option(f,current_option,&v,&nhomo,&m,&ord);
1.2       noro     3408:     homo = ZTOS((Q)nhomo);
1.1       noro     3409:   } else
                   3410:     error("nd_gr_trace : invalid argument");
1.9       noro     3411:   retdp = 0;
                   3412:   if ( get_opt("dp",&val) && val ) retdp = 1;
                   3413:   nd_gr_trace(f,v,m,homo,retdp,1,ord,rp);
1.1       noro     3414: }
                   3415:
                   3416: void Pnd_weyl_gr(NODE arg,LIST *rp)
                   3417: {
                   3418:   LIST f,v;
                   3419:   int m,homo,retdp,ac;
                   3420:   Obj val;
                   3421:   Num nhomo;
                   3422:   struct order_spec *ord;
                   3423:
                   3424:   do_weyl = 1;
                   3425:   retdp = 0;
                   3426:   if ( (ac = argc(arg)) == 4 ) {
                   3427:     asir_assert(ARG0(arg),O_LIST,"nd_weyl_gr");
                   3428:     asir_assert(ARG1(arg),O_LIST,"nd_weyl_gr");
                   3429:     asir_assert(ARG2(arg),O_N,"nd_weyl_gr");
                   3430:     f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
                   3431:     f = remove_zero_from_list(f);
                   3432:     if ( !BDY(f) ) {
                   3433:       *rp = f; do_weyl = 0; return;
                   3434:     }
1.2       noro     3435:     m = ZTOS((Q)ARG2(arg));
1.1       noro     3436:     create_order_spec(0,ARG3(arg),&ord);
                   3437:     homo = 0;
                   3438:     if ( get_opt("homo",&val) && val ) homo = 1;
                   3439:     if ( get_opt("dp",&val) && val ) retdp = 1;
                   3440:   } else if ( ac == 1 ) {
                   3441:     f = (LIST)ARG0(arg);
                   3442:     parse_gr_option(f,current_option,&v,&nhomo,&m,&ord);
1.2       noro     3443:     homo = ZTOS((Q)nhomo);
1.1       noro     3444:     if ( get_opt("dp",&val) && val ) retdp = 1;
                   3445:   } else
                   3446:     error("nd_weyl_gr : invalid argument");
                   3447:   nd_gr(f,v,m,homo,retdp,0,ord,rp);
                   3448:   do_weyl = 0;
                   3449: }
                   3450:
                   3451: void Pnd_weyl_gr_trace(NODE arg,LIST *rp)
                   3452: {
                   3453:   LIST f,v;
1.9       noro     3454:   int m,homo,ac,retdp;
                   3455:   Obj val;
1.1       noro     3456:   Num nhomo;
                   3457:   struct order_spec *ord;
                   3458:
                   3459:   do_weyl = 1;
                   3460:   if ( (ac = argc(arg)) == 5 ) {
                   3461:     asir_assert(ARG0(arg),O_LIST,"nd_weyl_gr_trace");
                   3462:     asir_assert(ARG1(arg),O_LIST,"nd_weyl_gr_trace");
                   3463:     asir_assert(ARG2(arg),O_N,"nd_weyl_gr_trace");
                   3464:     asir_assert(ARG3(arg),O_N,"nd_weyl_gr_trace");
                   3465:     f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
                   3466:     f = remove_zero_from_list(f);
                   3467:     if ( !BDY(f) ) {
                   3468:       *rp = f; do_weyl = 0; return;
                   3469:     }
1.2       noro     3470:     homo = ZTOS((Q)ARG2(arg));
                   3471:     m = ZTOS((Q)ARG3(arg));
1.1       noro     3472:     create_order_spec(0,ARG4(arg),&ord);
                   3473:   } else if ( ac == 1 ) {
                   3474:     f = (LIST)ARG0(arg);
                   3475:     parse_gr_option(f,current_option,&v,&nhomo,&m,&ord);
1.2       noro     3476:     homo = ZTOS((Q)nhomo);
1.1       noro     3477:   } else
                   3478:     error("nd_weyl_gr_trace : invalid argument");
1.9       noro     3479:   retdp = 0;
                   3480:   if ( get_opt("dp",&val) && val ) retdp = 1;
                   3481:   nd_gr_trace(f,v,m,homo,retdp,0,ord,rp);
1.1       noro     3482:   do_weyl = 0;
                   3483: }
                   3484:
                   3485: void Pnd_nf(NODE arg,Obj *rp)
                   3486: {
                   3487:   Obj f;
                   3488:   LIST g,v;
                   3489:   struct order_spec *ord;
                   3490:
                   3491:   do_weyl = 0;
                   3492:   asir_assert(ARG1(arg),O_LIST,"nd_nf");
                   3493:   asir_assert(ARG2(arg),O_LIST,"nd_nf");
                   3494:   asir_assert(ARG4(arg),O_N,"nd_nf");
                   3495:   f = (Obj)ARG0(arg);
                   3496:   g = (LIST)ARG1(arg); g = remove_zero_from_list(g);
                   3497:   if ( !BDY(g) ) {
                   3498:     *rp = f; return;
                   3499:   }
                   3500:   v = (LIST)ARG2(arg);
                   3501:   create_order_spec(0,ARG3(arg),&ord);
1.2       noro     3502:   nd_nf_p(f,g,v,ZTOS((Q)ARG4(arg)),ord,rp);
1.1       noro     3503: }
                   3504:
                   3505: void Pnd_weyl_nf(NODE arg,Obj *rp)
                   3506: {
                   3507:   Obj f;
                   3508:   LIST g,v;
                   3509:   struct order_spec *ord;
                   3510:
                   3511:   do_weyl = 1;
                   3512:   asir_assert(ARG1(arg),O_LIST,"nd_weyl_nf");
                   3513:   asir_assert(ARG2(arg),O_LIST,"nd_weyl_nf");
                   3514:   asir_assert(ARG4(arg),O_N,"nd_weyl_nf");
                   3515:   f = (Obj)ARG0(arg);
                   3516:   g = (LIST)ARG1(arg); g = remove_zero_from_list(g);
                   3517:   if ( !BDY(g) ) {
                   3518:     *rp = f; return;
                   3519:   }
                   3520:   v = (LIST)ARG2(arg);
                   3521:   create_order_spec(0,ARG3(arg),&ord);
1.2       noro     3522:   nd_nf_p(f,g,v,ZTOS((Q)ARG4(arg)),ord,rp);
1.1       noro     3523: }
                   3524:
                   3525: /* for Weyl algebra */
                   3526:
                   3527: void Pdp_weyl_gr_main(NODE arg,LIST *rp)
                   3528: {
                   3529:   LIST f,v;
                   3530:   Num homo;
                   3531:   Z m,z;
                   3532:   int modular,ac;
                   3533:   struct order_spec *ord;
                   3534:
                   3535:
                   3536:   asir_assert(ARG0(arg),O_LIST,"dp_weyl_gr_main");
                   3537:   f = (LIST)ARG0(arg);
                   3538:   f = remove_zero_from_list(f);
                   3539:   if ( !BDY(f) ) {
                   3540:     *rp = f; return;
                   3541:   }
                   3542:   if ( (ac = argc(arg)) == 5 ) {
                   3543:     asir_assert(ARG1(arg),O_LIST,"dp_weyl_gr_main");
                   3544:     asir_assert(ARG2(arg),O_N,"dp_weyl_gr_main");
                   3545:     asir_assert(ARG3(arg),O_N,"dp_weyl_gr_main");
                   3546:     v = (LIST)ARG1(arg);
                   3547:     homo = (Num)ARG2(arg);
                   3548:     m = (Z)ARG3(arg);
1.2       noro     3549:     STOZ(0x80000000,z);
1.1       noro     3550:     if ( !m )
                   3551:       modular = 0;
                   3552:     else if ( cmpz(m,z) >= 0 )
                   3553:       error("dp_weyl_gr_main : too large modulus");
                   3554:     else
1.2       noro     3555:       modular = ZTOS(m);
1.1       noro     3556:     create_order_spec(0,ARG4(arg),&ord);
                   3557:   } else if ( current_option )
                   3558:     parse_gr_option(f,current_option,&v,&homo,&modular,&ord);
                   3559:   else if ( ac == 1 )
                   3560:     parse_gr_option(f,0,&v,&homo,&modular,&ord);
                   3561:   else
                   3562:     error("dp_weyl_gr_main : invalid argument");
                   3563:   do_weyl = 1;
                   3564:   dp_gr_main(f,v,homo,modular,0,ord,rp);
                   3565:   do_weyl = 0;
                   3566: }
                   3567:
                   3568: void Pdp_weyl_gr_f_main(NODE arg,LIST *rp)
                   3569: {
                   3570:   LIST f,v;
                   3571:   Num homo;
                   3572:   struct order_spec *ord;
                   3573:
                   3574:   asir_assert(ARG0(arg),O_LIST,"dp_weyl_gr_main");
                   3575:   asir_assert(ARG1(arg),O_LIST,"dp_weyl_gr_main");
                   3576:   asir_assert(ARG2(arg),O_N,"dp_weyl_gr_main");
                   3577:   asir_assert(ARG3(arg),O_N,"dp_weyl_gr_main");
                   3578:   f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
                   3579:   f = remove_zero_from_list(f);
                   3580:   if ( !BDY(f) ) {
                   3581:     *rp = f; return;
                   3582:   }
                   3583:   homo = (Num)ARG2(arg);
                   3584:   create_order_spec(0,ARG3(arg),&ord);
                   3585:   do_weyl = 1;
                   3586:   dp_gr_main(f,v,homo,0,1,ord,rp);
                   3587:   do_weyl = 0;
                   3588: }
                   3589:
                   3590: void Pdp_weyl_f4_main(NODE arg,LIST *rp)
                   3591: {
                   3592:   LIST f,v;
                   3593:   struct order_spec *ord;
                   3594:
                   3595:   asir_assert(ARG0(arg),O_LIST,"dp_weyl_f4_main");
                   3596:   asir_assert(ARG1(arg),O_LIST,"dp_weyl_f4_main");
                   3597:   f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
                   3598:   f = remove_zero_from_list(f);
                   3599:   if ( !BDY(f) ) {
                   3600:     *rp = f; return;
                   3601:   }
                   3602:   create_order_spec(0,ARG2(arg),&ord);
                   3603:   do_weyl = 1;
                   3604:   dp_f4_main(f,v,ord,rp);
                   3605:   do_weyl = 0;
                   3606: }
                   3607:
                   3608: void Pdp_weyl_f4_mod_main(NODE arg,LIST *rp)
                   3609: {
                   3610:   LIST f,v;
                   3611:   int m;
                   3612:   struct order_spec *ord;
                   3613:
                   3614:   asir_assert(ARG0(arg),O_LIST,"dp_weyl_f4_main");
                   3615:   asir_assert(ARG1(arg),O_LIST,"dp_weyl_f4_main");
                   3616:   asir_assert(ARG2(arg),O_N,"dp_f4_main");
1.2       noro     3617:   f = (LIST)ARG0(arg); v = (LIST)ARG1(arg); m = ZTOS((Q)ARG2(arg));
1.1       noro     3618:   f = remove_zero_from_list(f);
                   3619:   if ( !BDY(f) ) {
                   3620:     *rp = f; return;
                   3621:   }
                   3622:   if ( !m )
                   3623:     error("dp_weyl_f4_mod_main : invalid argument");
                   3624:   create_order_spec(0,ARG3(arg),&ord);
                   3625:   do_weyl = 1;
                   3626:   dp_f4_mod_main(f,v,m,ord,rp);
                   3627:   do_weyl = 0;
                   3628: }
                   3629:
                   3630: void Pdp_weyl_gr_mod_main(NODE arg,LIST *rp)
                   3631: {
                   3632:   LIST f,v;
                   3633:   Num homo;
                   3634:   int m;
                   3635:   struct order_spec *ord;
                   3636:
                   3637:   asir_assert(ARG0(arg),O_LIST,"dp_weyl_gr_mod_main");
                   3638:   asir_assert(ARG1(arg),O_LIST,"dp_weyl_gr_mod_main");
                   3639:   asir_assert(ARG2(arg),O_N,"dp_weyl_gr_mod_main");
                   3640:   asir_assert(ARG3(arg),O_N,"dp_weyl_gr_mod_main");
                   3641:   f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
                   3642:   f = remove_zero_from_list(f);
                   3643:   if ( !BDY(f) ) {
                   3644:     *rp = f; return;
                   3645:   }
1.2       noro     3646:   homo = (Num)ARG2(arg); m = ZTOS((Q)ARG3(arg));
1.1       noro     3647:   if ( !m )
                   3648:     error("dp_weyl_gr_mod_main : invalid argument");
                   3649:   create_order_spec(0,ARG4(arg),&ord);
                   3650:   do_weyl = 1;
                   3651:   dp_gr_mod_main(f,v,homo,m,ord,rp);
                   3652:   do_weyl = 0;
                   3653: }
                   3654:
                   3655: VECT current_dl_weight_vector_obj;
                   3656: int *current_dl_weight_vector;
                   3657: int dp_negative_weight;
                   3658:
                   3659: void Pdp_set_weight(NODE arg,VECT *rp)
                   3660: {
                   3661:   VECT v;
                   3662:   int i,n;
                   3663:   NODE node;
                   3664:
                   3665:   if ( !arg )
                   3666:     *rp = current_dl_weight_vector_obj;
                   3667:   else if ( !ARG0(arg) ) {
                   3668:     current_dl_weight_vector_obj = 0;
                   3669:     current_dl_weight_vector = 0;
                   3670:         dp_negative_weight = 0;
                   3671:     *rp = 0;
                   3672:   } else {
                   3673:     if ( OID(ARG0(arg)) != O_VECT && OID(ARG0(arg)) != O_LIST )
                   3674:       error("dp_set_weight : invalid argument");
                   3675:     if ( OID(ARG0(arg)) == O_VECT )
                   3676:       v = (VECT)ARG0(arg);
                   3677:     else {
                   3678:       node = (NODE)BDY((LIST)ARG0(arg));
                   3679:       n = length(node);
                   3680:       MKVECT(v,n);
                   3681:       for ( i = 0; i < n; i++, node = NEXT(node) )
                   3682:         BDY(v)[i] = BDY(node);
                   3683:     }
                   3684:     current_dl_weight_vector_obj = v;
                   3685:     n = v->len;
                   3686:     current_dl_weight_vector = (int *)CALLOC(n,sizeof(int));
                   3687:     for ( i = 0; i < n; i++ )
1.2       noro     3688:       current_dl_weight_vector[i] = ZTOS((Q)v->body[i]);
1.1       noro     3689:         for ( i = 0; i < n; i++ )
                   3690:             if ( current_dl_weight_vector[i] < 0 ) break;
                   3691:         if ( i < n )
                   3692:             dp_negative_weight = 1;
                   3693:         else
                   3694:             dp_negative_weight = 0;
                   3695:     *rp = v;
                   3696:   }
                   3697: }
                   3698:
                   3699: VECT current_module_weight_vector_obj;
                   3700: int *current_module_weight_vector;
                   3701:
                   3702: void Pdp_set_module_weight(NODE arg,VECT *rp)
                   3703: {
                   3704:   VECT v;
                   3705:   int i,n;
                   3706:   NODE node;
                   3707:
                   3708:   if ( !arg )
                   3709:     *rp = current_module_weight_vector_obj;
                   3710:   else if ( !ARG0(arg) ) {
                   3711:     current_module_weight_vector_obj = 0;
                   3712:     current_module_weight_vector = 0;
                   3713:     *rp = 0;
                   3714:   } else {
                   3715:     if ( OID(ARG0(arg)) != O_VECT && OID(ARG0(arg)) != O_LIST )
                   3716:       error("dp_module_set_weight : invalid argument");
                   3717:     if ( OID(ARG0(arg)) == O_VECT )
                   3718:       v = (VECT)ARG0(arg);
                   3719:     else {
                   3720:       node = (NODE)BDY((LIST)ARG0(arg));
                   3721:       n = length(node);
                   3722:       MKVECT(v,n);
                   3723:       for ( i = 0; i < n; i++, node = NEXT(node) )
                   3724:         BDY(v)[i] = BDY(node);
                   3725:     }
                   3726:     current_module_weight_vector_obj = v;
                   3727:     n = v->len;
                   3728:     current_module_weight_vector = (int *)CALLOC(n,sizeof(int));
                   3729:     for ( i = 0; i < n; i++ )
1.2       noro     3730:       current_module_weight_vector[i] = ZTOS((Q)v->body[i]);
1.1       noro     3731:     *rp = v;
                   3732:   }
                   3733: }
                   3734:
                   3735: extern Obj current_top_weight;
                   3736: extern Obj nd_top_weight;
                   3737:
                   3738: void Pdp_set_top_weight(NODE arg,Obj *rp)
                   3739: {
                   3740:   VECT v;
                   3741:   MAT m;
                   3742:   Obj obj;
                   3743:   int i,j,n,id,row,col;
                   3744:   Q *mi;
                   3745:   NODE node;
                   3746:
                   3747:   if ( !arg )
                   3748:     *rp = current_top_weight;
                   3749:   else if ( !ARG0(arg) ) {
                   3750:     reset_top_weight();
                   3751:     *rp = 0;
                   3752:   } else {
                   3753:     id = OID(ARG0(arg));
                   3754:     if ( id != O_VECT && id != O_MAT && id != O_LIST )
                   3755:       error("dp_set_top_weight : invalid argument");
                   3756:     if ( id == O_LIST ) {
                   3757:       node = (NODE)BDY((LIST)ARG0(arg));
                   3758:       n = length(node);
                   3759:       MKVECT(v,n);
                   3760:       for ( i = 0; i < n; i++, node = NEXT(node) )
                   3761:         BDY(v)[i] = BDY(node);
                   3762:         obj = (Obj)v;
                   3763:     } else
                   3764:         obj = ARG0(arg);
                   3765:     if ( OID(obj) == O_VECT ) {
                   3766:       v = (VECT)obj;
                   3767:         for ( i = 0; i < v->len; i++ )
                   3768:           if ( !INT((Q)BDY(v)[i]) || sgnz((Z)BDY(v)[i]) < 0 )
                   3769:             error("dp_set_top_weight : each element must be a non-negative integer");
                   3770:     } else {
                   3771:       m = (MAT)obj; row = m->row; col = m->col;
                   3772:         for ( i = 0; i < row; i++ )
                   3773:         for ( j = 0, mi = (Q *)BDY(m)[i]; j < col; j++ )
                   3774:               if ( !INT((Q)mi[j]) || sgnz((Z)mi[j]) < 0 )
                   3775:                 error("dp_set_top_weight : each element must be a non-negative integer");
                   3776:     }
                   3777:         current_top_weight = obj;
                   3778:     nd_top_weight = obj;
                   3779:     *rp = current_top_weight;
                   3780:   }
                   3781: }
                   3782:
                   3783: LIST get_denomlist();
                   3784:
                   3785: void Pdp_get_denomlist(LIST *rp)
                   3786: {
                   3787:   *rp = get_denomlist();
                   3788: }
                   3789:
                   3790: static VECT current_weyl_weight_vector_obj;
                   3791: int *current_weyl_weight_vector;
                   3792:
                   3793: void Pdp_weyl_set_weight(NODE arg,VECT *rp)
                   3794: {
                   3795:   VECT v;
                   3796:   NODE node;
                   3797:   int i,n;
                   3798:
                   3799:   if ( !arg )
                   3800:     *rp = current_weyl_weight_vector_obj;
                   3801:   else if ( !ARG0(arg) ) {
                   3802:     current_weyl_weight_vector_obj = 0;
                   3803:     current_weyl_weight_vector = 0;
                   3804:     *rp = 0;
                   3805:   } else {
                   3806:     if ( OID(ARG0(arg)) != O_VECT && OID(ARG0(arg)) != O_LIST )
                   3807:       error("dp_weyl_set_weight : invalid argument");
                   3808:     if ( OID(ARG0(arg)) == O_VECT )
                   3809:       v = (VECT)ARG0(arg);
                   3810:     else {
                   3811:       node = (NODE)BDY((LIST)ARG0(arg));
                   3812:       n = length(node);
                   3813:       MKVECT(v,n);
                   3814:       for ( i = 0; i < n; i++, node = NEXT(node) )
                   3815:         BDY(v)[i] = BDY(node);
                   3816:     }
                   3817:     current_weyl_weight_vector_obj = v;
                   3818:     n = v->len;
                   3819:     current_weyl_weight_vector = (int *)CALLOC(n,sizeof(int));
                   3820:     for ( i = 0; i < n; i++ )
1.2       noro     3821:       current_weyl_weight_vector[i] = ZTOS((Q)v->body[i]);
1.1       noro     3822:     *rp = v;
                   3823:   }
                   3824: }
                   3825:
                   3826: NODE mono_raddec(NODE ideal);
                   3827:
                   3828: void Pdp_mono_raddec(NODE arg,LIST *rp)
                   3829: {
                   3830:   NODE ideal,rd,t,t1,r,r1,u;
                   3831:   VL vl0,vl;
                   3832:   int nv,i,bpi;
                   3833:   int *s;
                   3834:   DP dp;
                   3835:   P *v;
                   3836:   LIST l;
                   3837:
                   3838:   ideal = BDY((LIST)ARG0(arg));
                   3839:   if ( !ideal ) *rp = (LIST)ARG0(arg);
                   3840:   else {
                   3841:     t = BDY((LIST)ARG1(arg));
                   3842:     nv = length(t);
                   3843:     v = (P *)MALLOC(nv*sizeof(P));
                   3844:     for ( vl0 = 0, i = 0; t; t = NEXT(t), i++ ) {
                   3845:       NEXTVL(vl0,vl); VR(vl) = VR((P)BDY(t));
                   3846:       MKV(VR(vl),v[i]);
                   3847:     }
                   3848:     if ( vl0 ) NEXT(vl) = 0;
                   3849:     for ( t = 0, r = ideal; r; r = NEXT(r) ) {
                   3850:       ptod(CO,vl0,BDY(r),&dp); MKNODE(t1,dp,t); t = t1;
                   3851:     }
                   3852:     rd = mono_raddec(t);
                   3853:     r = 0;
                   3854:     bpi = (sizeof(int)/sizeof(char))*8;
                   3855:     for ( u = rd; u; u = NEXT(u) ) {
                   3856:       s = (int *)BDY(u);
                   3857:       for ( i = nv-1, t = 0; i >= 0; i-- )
                   3858:         if ( s[i/bpi]&(1<<(i%bpi)) ) {
                   3859:           MKNODE(t1,v[i],t); t = t1;
                   3860:         }
                   3861:       MKLIST(l,t); MKNODE(r1,l,r); r = r1;
                   3862:     }
                   3863:     MKLIST(*rp,r);
                   3864:   }
                   3865: }
                   3866:
                   3867: void Pdp_mono_reduce(NODE arg,LIST *rp)
                   3868: {
                   3869:   NODE t,t0,t1,r0,r;
                   3870:   int i,n;
                   3871:   DP m;
                   3872:   DP *a;
                   3873:
                   3874:   t0 = BDY((LIST)ARG0(arg));
                   3875:   t1 = BDY((LIST)ARG1(arg));
                   3876:   n = length(t0);
                   3877:   a = (DP *)MALLOC(n*sizeof(DP));
                   3878:   for ( i = 0; i < n; i++, t0 = NEXT(t0) ) a[i] = (DP)BDY(t0);
                   3879:   for ( t = t1; t; t = NEXT(t) ) {
                   3880:     m = (DP)BDY(t);
                   3881:     for ( i = 0; i < n; i++ )
                   3882:       if ( a[i] && dp_redble(a[i],m) ) a[i] = 0;
                   3883:   }
                   3884:   for ( i = n-1, r0 = 0; i >= 0; i-- )
                   3885:     if ( a[i] ) { NEXTNODE(r0,r); BDY(r) = a[i]; }
                   3886:   if ( r0 ) NEXT(r) = 0;
                   3887:   MKLIST(*rp,r0);
                   3888: }
                   3889:
                   3890: #define BLEN (8*sizeof(unsigned long))
                   3891:
                   3892: void showmat2(unsigned long **a,int row,int col)
                   3893: {
                   3894:   int i,j;
                   3895:
                   3896:   for ( i = 0; i < row; i++, putchar('\n') )
                   3897:     for ( j = 0; j < col; j++ )
                   3898:       if ( a[i][j/BLEN] & (1L<<(j%BLEN)) ) putchar('1');
                   3899:       else putchar('0');
                   3900: }
                   3901:
                   3902: int rref2(unsigned long **a,int row,int col)
                   3903: {
                   3904:   int i,j,k,l,s,wcol,wj;
                   3905:   unsigned long bj;
                   3906:   unsigned long *ai,*ak,*as,*t;
                   3907:   int *pivot;
                   3908:
                   3909:   wcol = (col+BLEN-1)/BLEN;
                   3910:   pivot = (int *)MALLOC_ATOMIC(row*sizeof(int));
                   3911:   i = 0;
                   3912:   for ( j = 0; j < col; j++ ) {
                   3913:     wj = j/BLEN; bj = 1L<<(j%BLEN);
                   3914:     for ( k = i; k < row; k++ )
                   3915:       if ( a[k][wj] & bj ) break;
                   3916:     if ( k == row ) continue;
                   3917:     pivot[i] = j;
                   3918:     if ( k != i ) {
                   3919:      t = a[i]; a[i] = a[k]; a[k] = t;
                   3920:     }
                   3921:     ai = a[i];
                   3922:     for ( k = i+1; k < row; k++ ) {
                   3923:       ak = a[k];
                   3924:       if ( ak[wj] & bj ) {
                   3925:         for ( l = wj; l < wcol; l++ )
                   3926:           ak[l] ^= ai[l];
                   3927:       }
                   3928:     }
                   3929:     i++;
                   3930:   }
                   3931:   for ( k = i-1; k >= 0; k-- ) {
                   3932:     j = pivot[k]; wj = j/BLEN; bj = 1L<<(j%BLEN);
                   3933:     ak = a[k];
                   3934:     for ( s = 0; s < k; s++ ) {
                   3935:       as = a[s];
                   3936:       if ( as[wj] & bj ) {
                   3937:         for ( l = wj; l < wcol; l++ )
                   3938:           as[l] ^= ak[l];
                   3939:       }
                   3940:     }
                   3941:   }
                   3942:   return i;
                   3943: }
                   3944:
                   3945: void Pdp_rref2(NODE arg,VECT *rp)
                   3946: {
                   3947:   VECT f,term,ret;
                   3948:   int row,col,wcol,size,nv,i,j,rank,td;
                   3949:   unsigned long **mat;
                   3950:   unsigned long *v;
                   3951:   DL d;
                   3952:   DL *t;
                   3953:   DP dp;
                   3954:   MP m,m0;
                   3955:
                   3956:   f = (VECT)ARG0(arg);
                   3957:   row = f->len;
                   3958:   term = (VECT)ARG1(arg);
                   3959:   col = term->len;
                   3960:   mat = (unsigned long **)MALLOC(row*sizeof(unsigned long *));
                   3961:   size = sizeof(unsigned long)*((col+BLEN-1)/BLEN);
                   3962:   nv = ((DP)term->body[0])->nv;
                   3963:   t = (DL *)MALLOC(col*sizeof(DL));
                   3964:   for ( i = 0; i < col; i++ ) t[i] = BDY((DP)BDY(term)[i])->dl;
                   3965:   for ( i = 0; i < row; i++ ) {
                   3966:     v = mat[i] = (unsigned long *)MALLOC_ATOMIC_IGNORE_OFF_PAGE(size);
                   3967:   bzero(v,size);
                   3968:   for ( j = 0, m = BDY((DP)BDY(f)[i]); m; m = NEXT(m) ) {
                   3969:     d = m->dl;
                   3970:     for ( ; !dl_equal(nv,d,t[j]); j++ );
                   3971:     v[j/BLEN] |= 1L <<(j%BLEN);
                   3972:   }
                   3973:   }
                   3974:   rank = rref2(mat,row,col);
                   3975:   MKVECT(ret,rank);
                   3976:   *rp = ret;
                   3977:   for ( i = 0; i < rank; i++ ) {
                   3978:     v = mat[i];
                   3979:   m0 = 0;
                   3980:   td = 0;
                   3981:     for ( j = 0; j < col; j++ ) {
                   3982:     if ( v[j/BLEN] & (1L<<(j%BLEN)) ) {
                   3983:       NEXTMP(m0,m);
                   3984:     m->dl = t[j];
                   3985:     m->c = (Obj)ONE;
                   3986:       td = MAX(td,m->dl->td);
                   3987:     }
                   3988:   }
                   3989:   NEXT(m) = 0;
                   3990:   MKDP(nv,m0,dp);
                   3991:   dp->sugar = td;
                   3992:     BDY(ret)[i] = (pointer)dp;
                   3993:   }
                   3994: }
                   3995:
                   3996: #define HDL(f) (BDY(f)->dl)
                   3997:
                   3998: NODE sumi_criB(int nv,NODE d,DP *f,int m)
                   3999: {
                   4000:  LIST p;
                   4001:  NODE r0,r;
                   4002:  int p0,p1;
                   4003:  DL p2,lcm;
                   4004:
                   4005:  NEWDL(lcm,nv);
                   4006:  r0 = 0;
                   4007:  for ( ; d; d = NEXT(d) ) {
                   4008:   p = (LIST)BDY(d);
1.2       noro     4009:   p0 = ZTOS((Q)ARG0(BDY(p)));
                   4010:   p1 = ZTOS((Q)ARG1(BDY(p)));
1.1       noro     4011:   p2 = HDL((DP)ARG2(BDY(p)));
                   4012:     if(!_dl_redble(HDL((DP)f[m]),p2,nv) ||
                   4013:      dl_equal(nv,lcm_of_DL(nv,HDL(f[p0]),HDL(f[m]),lcm),p2) ||
                   4014:      dl_equal(nv,lcm_of_DL(nv,HDL(f[p1]),HDL(f[m]),lcm),p2) ) {
                   4015:     NEXTNODE(r0,r);
                   4016:     BDY(r) = p;
                   4017:   }
                   4018:  }
                   4019:  if ( r0 ) NEXT(r) = 0;
                   4020:  return r0;
                   4021: }
                   4022:
                   4023: NODE sumi_criFMD(int nv,DP *f,int m)
                   4024: {
                   4025:   DL *a;
                   4026:   DL l1,dl1,dl2;
                   4027:   int i,j,k,k2;
                   4028:   NODE r,r1,nd;
                   4029:   MP mp;
                   4030:   DP u;
                   4031:   Z iq,mq;
                   4032:   LIST list;
                   4033:
                   4034:   /* a[i] = lcm(LT(f[i]),LT(f[m])) */
                   4035:   a = (DL *)ALLOCA(m*sizeof(DL));
                   4036:   for ( i = 0; i < m; i++ ) {
                   4037:    a[i] = lcm_of_DL(nv,HDL(f[i]),HDL(f[m]),0);
                   4038:   }
                   4039:   r = 0;
                   4040:   for( i = 0; i < m; i++) {
                   4041:    l1 = a[i];
                   4042:    if ( !l1 ) continue;
                   4043:    /* Tkm = Tim (k<i) */
                   4044:    for( k = 0; k < i; k++)
                   4045:      if( dl_equal(nv,l1,a[k]) ) break;
                   4046:    if( k == i ){
                   4047:      /* Tk|Tim && Tkm != Tim (k<m) */
                   4048:    for ( k2 = 0; k2 < m; k2++ )
                   4049:      if ( _dl_redble(HDL(f[k2]),l1,nv) &&
                   4050:        !dl_equal(nv,l1,a[k2]) ) break;
                   4051:    if ( k2 == m ) {
                   4052:        dl1 = HDL(f[i]); dl2 = HDL(f[m]);
                   4053:        for ( k2 = 0; k2 < nv; k2++ )
                   4054:          if ( dl1->d[k2] && dl2->d[k2] ) break;
                   4055:        if ( k2 < nv ) {
                   4056:          NEWMP(mp); mp->dl = l1; C(mp) = (Obj)ONE;
                   4057:          NEXT(mp) = 0; MKDP(nv,mp,u); u->sugar = l1->td;
1.2       noro     4058:        STOZ(i,iq); STOZ(m,mq);
1.1       noro     4059:        nd = mknode(3,iq,mq,u);
                   4060:        MKLIST(list,nd);
                   4061:        MKNODE(r1,list,r);
                   4062:        r = r1;
                   4063:     }
                   4064:   }
                   4065:    }
                   4066:  }
                   4067:  return r;
                   4068: }
                   4069:
                   4070: LIST sumi_updatepairs(LIST d,DP *f,int m)
                   4071: {
                   4072:   NODE old,new,t;
                   4073:   LIST l;
                   4074:   int nv;
                   4075:
                   4076:   nv = f[0]->nv;
                   4077:   old = sumi_criB(nv,BDY(d),f,m);
                   4078:   new = sumi_criFMD(nv,f,m);
                   4079:   if ( !new ) new = old;
                   4080:   else {
                   4081:     for ( t = new ; NEXT(t); t = NEXT(t) );
                   4082:   NEXT(t) = old;
                   4083:   }
                   4084:   MKLIST(l,new);
                   4085:   return l;
                   4086: }
                   4087:
                   4088: VECT ltov(LIST l)
                   4089: {
                   4090:   NODE n;
                   4091:   int i,len;
                   4092:   VECT v;
                   4093:
                   4094:   n = BDY(l);
                   4095:   len = length(n);
                   4096:   MKVECT(v,len);
                   4097:   for ( i = 0; i < len; i++, n = NEXT(n) )
                   4098:     BDY(v)[i] = BDY(n);
                   4099:   return v;
                   4100: }
                   4101:
                   4102: DL subdl(int nv,DL d1,DL d2)
                   4103: {
                   4104:   int i;
                   4105:   DL d;
                   4106:
                   4107:   NEWDL(d,nv);
                   4108:   d->td = d1->td-d2->td;
                   4109:   for ( i = 0; i < nv; i++ )
                   4110:     d->d[i] = d1->d[i]-d2->d[i];
                   4111:   return d;
                   4112: }
                   4113:
                   4114: DP dltodp(int nv,DL d)
                   4115: {
                   4116:   MP mp;
                   4117:   DP dp;
                   4118:
                   4119:   NEWMP(mp); mp->dl = d; C(mp) = (Obj)ONE;
                   4120:   NEXT(mp) = 0; MKDP(nv,mp,dp); dp->sugar = d->td;
                   4121:   return dp;
                   4122: }
                   4123:
                   4124: LIST sumi_simplify(int nv,DL t,DP p,NODE f2,int simp)
                   4125: {
                   4126:   DL d,h,hw;
                   4127:   DP u,w,dp;
                   4128:   int n,i,last;
                   4129:   LIST *v;
                   4130:   LIST list;
                   4131:   NODE s,r;
                   4132:
                   4133:   d = t; u = p;
                   4134:   /* only the last history is used */
                   4135:   if ( f2 && simp && t->td != 0 ) {
                   4136:     adddl(nv,t,HDL(p),&h);
                   4137:     n = length(f2);
                   4138:     last = 1;
                   4139:     if ( simp > 1 ) last = n;
                   4140:     v = (LIST *)ALLOCA(n*sizeof(LIST));
                   4141:     for ( r = f2, i = 0; r; r = NEXT(r), i++ ) v[n-i-1] = BDY(r);
                   4142:     for ( i = 0; i < last; i++ ) {
                   4143:       for ( s = BDY((LIST)v[i]); s; s = NEXT(s) ) {
                   4144:       w = (DP)BDY(s); hw = HDL(w);
                   4145:         if ( _dl_redble(hw,h,nv) ) {
                   4146:       u = w;
                   4147:       d = subdl(nv,h,hw);
                   4148:       goto fin;
                   4149:       }
                   4150:       }
                   4151:     }
                   4152:   }
                   4153: fin:
                   4154:   dp = dltodp(nv,d);
                   4155:   r = mknode(2,dp,u);
                   4156:   MKLIST(list,r);
                   4157:   return list;
                   4158: }
                   4159:
                   4160: LIST sumi_symbolic(NODE l,int q,NODE f2,DP *g,int simp)
                   4161: {
                   4162:    int nv;
                   4163:    NODE t,r;
                   4164:    NODE f0,f,fd0,fd,done0,done,red0,red;
                   4165:    DL h,d;
                   4166:    DP mul;
                   4167:    int m;
                   4168:    LIST tp,l0,l1,l2,l3,list;
                   4169:    VECT v0,v1,v2,v3;
                   4170:
                   4171:    nv = ((DP)BDY(l))->nv;
                   4172:    t = 0;
                   4173:
                   4174:    f0 = 0; fd0 = 0; done0 = 0; red0 = 0;
                   4175:
                   4176:    for ( ; l; l = NEXT(l) ) {
                   4177:      t = symb_merge(t,dp_dllist((DP)BDY(l)),nv);
                   4178:      NEXTNODE(fd0,fd); BDY(fd) = BDY(l);
                   4179:    }
                   4180:
                   4181:    while ( t ) {
                   4182:    h = (DL)BDY(t);
                   4183:    NEXTNODE(done0,done); BDY(done) = dltodp(nv,h);
                   4184:    t = NEXT(t);
                   4185:      for(m = 0; m < q; m++)
                   4186:      if ( _dl_redble(HDL(g[m]),h,nv) ) break;
                   4187:      if ( m == q ) {
                   4188:      } else {
                   4189:      d = subdl(nv,h,HDL(g[m]));
                   4190:        tp = sumi_simplify(nv,d,g[m],f2,simp);
                   4191:
                   4192:      muldm(CO,ARG1(BDY(tp)),BDY((DP)ARG0(BDY(tp))),&mul);
                   4193:        t = symb_merge(t,NEXT(dp_dllist(mul)),nv);
                   4194:
                   4195:      NEXTNODE(f0,f); BDY(f) = tp;
                   4196:      NEXTNODE(fd0,fd); BDY(fd) = mul;
                   4197:      NEXTNODE(red0,red); BDY(red) = mul;
                   4198:      }
                   4199:    }
                   4200:    if ( fd0 ) NEXT(fd) = 0; MKLIST(l0,fd0);
                   4201:    v0 = ltov(l0);
                   4202:    if ( done0 ) NEXT(done) = 0; MKLIST(l1,done0);
                   4203:    v1 = ltov(l1);
                   4204:    if ( f0 ) NEXT(f) = 0; MKLIST(l2,f0);
                   4205:    v2 = ltov(l2);
                   4206:    if ( red0 ) NEXT(red) = 0; MKLIST(l3,red0);
                   4207:    v3 = ltov(l3);
                   4208:    r = mknode(4,v0,v1,v2,v3);
                   4209:    MKLIST(list,r);
                   4210:    return list;
                   4211: }
                   4212:
                   4213: void Psumi_symbolic(NODE arg,LIST *rp)
                   4214: {
                   4215:   NODE l,f2;
                   4216:   DP *g;
                   4217:   int q,simp;
                   4218:
                   4219:   l = BDY((LIST)ARG0(arg));
1.2       noro     4220:   q = ZTOS((Q)ARG1(arg));
1.1       noro     4221:   f2 = BDY((LIST)ARG2(arg));
                   4222:   g = (DP *)BDY((VECT)ARG3(arg));
1.2       noro     4223:   simp = ZTOS((Q)ARG4(arg));
1.1       noro     4224:   *rp = sumi_symbolic(l,q,f2,g,simp);
                   4225: }
                   4226:
                   4227: void Psumi_updatepairs(NODE arg,LIST *rp)
                   4228: {
                   4229:    LIST d,l;
                   4230:    DP *f;
                   4231:    int m;
                   4232:
                   4233:    d = (LIST)ARG0(arg);
                   4234:    f = (DP *)BDY((VECT)ARG1(arg));
1.2       noro     4235:    m = ZTOS((Q)ARG2(arg));
1.1       noro     4236:    *rp = sumi_updatepairs(d,f,m);
                   4237: }
                   4238:
                   4239: LIST remove_zero_from_list(LIST l)
                   4240: {
                   4241:   NODE n,r0,r;
                   4242:   LIST rl;
                   4243:
                   4244:   asir_assert(l,O_LIST,"remove_zero_from_list");
                   4245:   n = BDY(l);
                   4246:   for ( r0 = 0; n; n = NEXT(n) )
                   4247:     if ( BDY(n) ) {
                   4248:       NEXTNODE(r0,r);
                   4249:       BDY(r) = BDY(n);
                   4250:     }
                   4251:   if ( r0 )
                   4252:     NEXT(r) = 0;
                   4253:   MKLIST(rl,r0);
                   4254:   return rl;
                   4255: }
                   4256:
                   4257: int get_field_type(P p)
                   4258: {
                   4259:   int type,t;
                   4260:   DCP dc;
                   4261:
                   4262:   if ( !p )
                   4263:     return 0;
                   4264:   else if ( NUM(p) )
                   4265:     return NID((Num)p);
                   4266:   else {
                   4267:     type = 0;
                   4268:     for ( dc = DC(p); dc; dc = NEXT(dc) ) {
                   4269:       t = get_field_type(COEF(dc));
                   4270:       if ( !t )
                   4271:         continue;
                   4272:       if ( t < 0 )
                   4273:         return t;
                   4274:       if ( !type )
                   4275:         type = t;
                   4276:       else if ( t != type )
                   4277:         return -1;
                   4278:     }
                   4279:     return type;
                   4280:   }
                   4281: }
                   4282:
                   4283: void Pdpv_ord(NODE arg,Obj *rp)
                   4284: {
                   4285:   int ac,id;
                   4286:   LIST shift;
                   4287:
                   4288:   ac = argc(arg);
                   4289:   if ( ac ) {
1.2       noro     4290:     id = ZTOS((Q)ARG0(arg));
1.1       noro     4291:     if ( ac > 1 && ARG1(arg) && OID((Obj)ARG1(arg))==O_LIST )
                   4292:       shift = (LIST)ARG1(arg);
                   4293:     else
                   4294:       shift = 0;
                   4295:     create_modorder_spec(id,shift,&dp_current_modspec);
                   4296:   }
                   4297:   *rp = dp_current_modspec->obj;
                   4298: }
                   4299:
1.9       noro     4300: extern int dpm_ordtype;
1.15      noro     4301: extern DMMstack dmm_stack;
1.9       noro     4302:
1.11      noro     4303: void set_schreyer_order(LIST n);
1.1       noro     4304:
1.10      noro     4305: void Pdpm_set_schreyer(NODE arg,LIST *rp)
1.1       noro     4306: {
1.9       noro     4307:   if ( argc(arg) ) {
1.17      noro     4308:     set_schreyer_order(ARG0(arg)?(LIST)ARG0(arg):0);
1.1       noro     4309:   }
1.17      noro     4310:   if ( dmm_stack )
                   4311:     *rp = dmm_stack->obj;
                   4312:   else
                   4313:     *rp = 0;
1.1       noro     4314: }
                   4315:
1.18      noro     4316: DMMstack_array Schreyer_Frame;
1.23      noro     4317: DMMstack_array dpm_schreyer_frame(NODE n,int lex);
1.18      noro     4318: void set_schreyer_level(DMMstack_array array,int level);
                   4319:
                   4320: void Pdpm_set_schreyer_level(NODE arg,Q *rp)
                   4321: {
                   4322:   set_schreyer_level(Schreyer_Frame,ZTOS((Q)ARG0(arg)));
                   4323:   *rp = (Q)ARG0(arg);
                   4324: }
                   4325:
                   4326: void Pdpm_schreyer_frame(NODE arg,LIST *rp)
                   4327: {
                   4328:   DMMstack_array a;
                   4329:   DMMstack *body;
1.20      noro     4330:   DMM *in,*sum;
                   4331:   DPM f,s;
                   4332:   NODE b,b1,nd;
1.18      noro     4333:   LIST l;
1.20      noro     4334:   VECT v;
                   4335:   Z lev,deg,ind;
1.23      noro     4336:   int len,i,nv,rank,j,lex;
                   4337:   NODE tt,p;
                   4338:   char *key;
                   4339:   Obj value;
1.18      noro     4340:
1.23      noro     4341:   lex = 0;
                   4342:   if ( current_option ) {
                   4343:     for ( tt = current_option; tt; tt = NEXT(tt) ) {
                   4344:       p = BDY((LIST)BDY(tt));
                   4345:       key = BDY((STRING)BDY(p));
                   4346:       value = (Obj)BDY(NEXT(p));
                   4347:       if ( !strcmp(key,"lex") )
                   4348:         lex = value!=0?1:0;
                   4349:       else {
                   4350:         error("dpm_schreyer_frame: unknown option.");
                   4351:       }
                   4352:     }
                   4353:   }
                   4354:   Schreyer_Frame = a = dpm_schreyer_frame(BDY((LIST)ARG0(arg)),lex);
1.18      noro     4355:   len = a->len;
                   4356:   body = a->body;
1.20      noro     4357:   /* XXX */
                   4358:   nv = ((DPM)BDY(BDY((LIST)body[0]->obj)))->nv;
1.18      noro     4359:   b = 0;
                   4360:   for ( i = 0; i < len; i++ ) {
1.20      noro     4361:     rank = body[i]->rank;
                   4362:     in = body[i]->in;
                   4363:     sum = body[i]->sum;
                   4364:     MKVECT(v,rank+1);
                   4365:     STOZ(i+1,lev);
                   4366:     for ( j = 1; j <= rank; j++ ) {
                   4367:       MKDPM(nv,in[j],f); f->sugar = in[j]->dl->td;
                   4368:       MKDPM(nv,sum[j],s);s->sugar = sum[j]->dl->td;
                   4369:       STOZ(s->sugar,deg);
                   4370:       STOZ(j,ind);
                   4371:       nd = mknode(5,f,s,ind,lev,deg);
                   4372:       MKLIST(l,nd);
                   4373:       BDY(v)[j] = (pointer)l;
                   4374:     }
                   4375:     MKNODE(b1,(pointer)v,b);
1.18      noro     4376:     b = b1;
                   4377:   }
                   4378:   MKLIST(l,b);
                   4379:   *rp = l;
                   4380: }
                   4381:
                   4382:
1.1       noro     4383: void Pdpm_hm(NODE arg,DPM *rp)
                   4384: {
                   4385:   DPM p;
                   4386:
                   4387:   p = (DPM)ARG0(arg); asir_assert(p,O_DPM,"dpm_hm");
                   4388:   dpm_hm(p,rp);
                   4389: }
                   4390:
                   4391: void Pdpm_ht(NODE arg,DPM *rp)
                   4392: {
                   4393:   DPM p;
                   4394:
1.9       noro     4395:   p = (DPM)ARG0(arg); asir_assert(p,O_DPM,"dpm_ht");
1.1       noro     4396:   dpm_ht(p,rp);
                   4397: }
                   4398:
1.10      noro     4399: void dpm_rest(DPM p,DPM *r);
                   4400:
                   4401: void Pdpm_rest(NODE arg,DPM *rp)
                   4402: {
                   4403:   DPM p;
                   4404:
                   4405:   p = (DPM)ARG0(arg); asir_assert(p,O_DPM,"dpm_ht");
                   4406:   dpm_rest(p,rp);
                   4407: }
                   4408:
                   4409:
                   4410: void Pdpm_hp(NODE arg,Z *rp)
                   4411: {
                   4412:   DPM p;
                   4413:   int pos;
                   4414:
                   4415:   p = (DPM)ARG0(arg); asir_assert(p,O_DPM,"dpm_ht");
                   4416:   pos = BDY(p)->pos;
                   4417:   STOZ(pos,*rp);
                   4418: }
                   4419:
1.9       noro     4420: void dpm_shift(DPM p,int s,DPM *rp);
                   4421:
                   4422: void Pdpm_shift(NODE arg,DPM *rp)
                   4423: {
                   4424:   DPM p;
                   4425:   int s;
                   4426:
                   4427:   p = (DPM)ARG0(arg); asir_assert(p,O_DPM,"dpm_shift");
                   4428:   s = ZTOS((Z)ARG1(arg));
                   4429:   dpm_shift(p,s,rp);
                   4430: }
                   4431:
                   4432: void dpm_sort(DPM p,DPM *rp);
                   4433:
                   4434: void Pdpm_sort(NODE arg,DPM *rp)
                   4435: {
                   4436:   DPM p;
                   4437:   int s;
                   4438:
1.10      noro     4439:   p = (DPM)ARG0(arg);
                   4440:   if ( !p ) *rp = 0;
1.21      noro     4441:   else dpm_sort(p,rp);
1.9       noro     4442: }
                   4443:
                   4444: void dpm_split(DPM p,int s,DPM *up,DPM *lo);
1.21      noro     4445: void dpm_extract(DPM p,int s,DP *r);
1.9       noro     4446:
                   4447: void Pdpm_split(NODE arg,LIST *rp)
                   4448: {
                   4449:   DPM p,up,lo;
                   4450:   int s;
                   4451:   NODE nd;
                   4452:
1.10      noro     4453:   p = (DPM)ARG0(arg);
1.9       noro     4454:   s = ZTOS((Z)ARG1(arg));
                   4455:   dpm_split(p,s,&up,&lo);
                   4456:   nd = mknode(2,up,lo);
                   4457:   MKLIST(*rp,nd);
                   4458: }
                   4459:
1.21      noro     4460: void Pdpm_extract(NODE arg,DP *rp)
                   4461: {
                   4462:   DPM p;
                   4463:   int s;
                   4464:
                   4465:   p = (DPM)ARG0(arg);
                   4466:   s = ZTOS((Z)ARG1(arg));
                   4467:   dpm_extract(p,s,rp);
                   4468: }
                   4469:
1.9       noro     4470:
1.13      noro     4471: void Pdpm_hc(NODE arg,DP *rp)
1.1       noro     4472: {
1.13      noro     4473:   DPM p;
                   4474:   DP d;
                   4475:   MP m;
                   4476:
1.1       noro     4477:   asir_assert(ARG0(arg),O_DPM,"dpm_hc");
                   4478:   if ( !ARG0(arg) )
                   4479:     *rp = 0;
1.13      noro     4480:   else {
                   4481:     p = (DPM)ARG0(arg);
                   4482:     NEWMP(m);
                   4483:     m->dl = BDY(p)->dl;
                   4484:     m->c = BDY(p)->c;
                   4485:     NEXT(m) = 0;
                   4486:     MKDP(NV(p),m,d); d->sugar = p->sugar;
                   4487:     *rp = d;
                   4488:   }
1.1       noro     4489: }
                   4490:
                   4491: void Pdpv_ht(NODE arg,LIST *rp)
                   4492: {
                   4493:   NODE n;
                   4494:   DP ht;
                   4495:   int pos;
                   4496:   DPV p;
                   4497:   Z q;
                   4498:
                   4499:   asir_assert(ARG0(arg),O_DPV,"dpv_ht");
                   4500:   p = (DPV)ARG0(arg);
                   4501:   pos = dpv_hp(p);
                   4502:   if ( pos < 0 )
                   4503:     ht = 0;
                   4504:   else
                   4505:     dp_ht(BDY(p)[pos],&ht);
1.2       noro     4506:   STOZ(pos,q);
1.1       noro     4507:   n = mknode(2,q,ht);
                   4508:   MKLIST(*rp,n);
                   4509: }
                   4510:
                   4511: void Pdpv_hm(NODE arg,LIST *rp)
                   4512: {
                   4513:   NODE n;
                   4514:   DP ht;
                   4515:   int pos;
                   4516:   DPV p;
                   4517:   Z q;
                   4518:
                   4519:   asir_assert(ARG0(arg),O_DPV,"dpv_hm");
                   4520:   p = (DPV)ARG0(arg);
                   4521:   pos = dpv_hp(p);
                   4522:   if ( pos < 0 )
                   4523:     ht = 0;
                   4524:   else
                   4525:     dp_hm(BDY(p)[pos],&ht);
1.2       noro     4526:   STOZ(pos,q);
1.1       noro     4527:   n = mknode(2,q,ht);
                   4528:   MKLIST(*rp,n);
                   4529: }
                   4530:
                   4531: void Pdpv_hc(NODE arg,LIST *rp)
                   4532: {
                   4533:   NODE n;
                   4534:   P hc;
                   4535:   int pos;
                   4536:   DPV p;
                   4537:   Z q;
                   4538:
                   4539:   asir_assert(ARG0(arg),O_DPV,"dpv_hc");
                   4540:   p = (DPV)ARG0(arg);
                   4541:   pos = dpv_hp(p);
                   4542:   if ( pos < 0 )
                   4543:     hc = 0;
                   4544:   else
                   4545:     hc = (P)BDY(BDY(p)[pos])->c;
1.2       noro     4546:   STOZ(pos,q);
1.1       noro     4547:   n = mknode(2,q,hc);
                   4548:   MKLIST(*rp,n);
                   4549: }
                   4550:
                   4551: int dpv_hp(DPV p)
                   4552: {
                   4553:   int len,i,maxp,maxw,w,slen;
                   4554:   int *shift;
                   4555:   DP *e;
                   4556:
                   4557:   len = p->len;
                   4558:   e = p->body;
                   4559:   slen = dp_current_modspec->len;
                   4560:   shift = dp_current_modspec->degree_shift;
                   4561:   switch ( dp_current_modspec->id ) {
                   4562:     case ORD_REVGRADLEX:
                   4563:       for ( maxp = -1, i = 0; i < len; i++ )
                   4564:         if ( !e[i] ) continue;
                   4565:         else if ( maxp < 0 ) {
                   4566:           maxw = BDY(e[i])->dl->td+(i<slen?shift[i]:0); maxp = i;
                   4567:         } else {
                   4568:           w = BDY(e[i])->dl->td+(i<slen?shift[i]:0);
                   4569:           if ( w >= maxw ) {
                   4570:             maxw = w; maxp = i;
                   4571:           }
                   4572:         }
                   4573:       return maxp;
                   4574:     case ORD_GRADLEX:
                   4575:       for ( maxp = -1, i = 0; i < len; i++ )
                   4576:         if ( !e[i] ) continue;
                   4577:         else if ( maxp < 0 ) {
                   4578:           maxw = BDY(e[i])->dl->td+(i<slen?shift[i]:0); maxp = i;
                   4579:         } else {
                   4580:           w = BDY(e[i])->dl->td+(i<slen?shift[i]:0);
                   4581:           if ( w > maxw ) {
                   4582:             maxw = w; maxp = i;
                   4583:           }
                   4584:         }
                   4585:       return maxp;
                   4586:       break;
                   4587:     case ORD_LEX:
                   4588:       for ( i = 0; i < len; i++ )
                   4589:         if ( e[i] ) return i;
                   4590:       return -1;
                   4591:       break;
1.9       noro     4592:     default:
                   4593:       error("dpv_hp : unsupported term ordering");
                   4594:       return -1;
                   4595:       break;
1.1       noro     4596:   }
                   4597: }
                   4598:
                   4599: int get_opt(char *key0,Obj *r) {
                   4600:    NODE tt,p;
                   4601:    char *key;
                   4602:
                   4603:    if ( current_option ) {
                   4604:      for ( tt = current_option; tt; tt = NEXT(tt) ) {
                   4605:        p = BDY((LIST)BDY(tt));
                   4606:        key = BDY((STRING)BDY(p));
                   4607:        /*  value = (Obj)BDY(NEXT(p)); */
                   4608:        if ( !strcmp(key,key0) )  {
                   4609:        *r = (Obj)BDY(NEXT(p));
                   4610:        return 1;
                   4611:      }
                   4612:      }
                   4613:    }
                   4614:    return 0;
                   4615: }

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