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Annotation of OpenXM_contrib2/asir2018/builtin/dp.c, Revision 1.26

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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                     26:  * e-mail at risa-admin@sec.flab.fujitsu.co.jp of the detailed specification
                     27:  * for such modification or the source code of the modified part of the
                     28:  * SOFTWARE.
                     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:  *
1.26    ! noro       48:  * $OpenXM: OpenXM_contrib2/asir2018/builtin/dp.c,v 1.25 2020/06/30 01:52:17 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:
1.3       noro       64: void Pdp_monomial_hilbert_poincare();
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();
1.1       noro      117: void Pnd_gr_postproc(), Pnd_weyl_gr_postproc();
                    118: void Pnd_gr_recompute_trace(), Pnd_btog();
                    119: void Pnd_weyl_gr(),Pnd_weyl_gr_trace();
                    120: void Pnd_nf(),Pnd_weyl_nf();
                    121: void Pdp_initial_term();
                    122: void Pdp_order();
                    123: void Pdp_inv_or_split();
                    124: void Pdp_compute_last_t();
                    125: void Pdp_compute_last_w();
                    126: void Pdp_compute_essential_df();
                    127: void Pdp_get_denomlist();
                    128: void Pdp_symb_add();
                    129: void Pdp_mono_raddec();
                    130: void Pdp_mono_reduce();
                    131: void Pdp_rref2(),Psumi_updatepairs(),Psumi_symbolic();
                    132:
                    133: LIST dp_initial_term();
                    134: LIST dp_order();
                    135: void parse_gr_option(LIST f,NODE opt,LIST *v,Num *homo,
                    136:   int *modular,struct order_spec **ord);
                    137: NODE dp_inv_or_split(NODE gb,DP f,struct order_spec *spec, DP *inv);
                    138:
                    139: LIST remove_zero_from_list(LIST);
                    140:
                    141: struct ftab dp_tab[] = {
                    142:   /* content reduction */
                    143:   {"dp_ptozp",Pdp_ptozp,1},
                    144:   {"dp_ptozp2",Pdp_ptozp2,2},
                    145:   {"dp_prim",Pdp_prim,1},
                    146:   {"dp_red_coef",Pdp_red_coef,2},
                    147:   {"dp_cont",Pdp_cont,1},
1.21      noro      148:   {"dpm_remove_cont",Pdpm_remove_cont,1},
1.1       noro      149:
                    150: /* polynomial ring */
                    151:   /* special operations */
                    152:   {"dp_mul_trunc",Pdp_mul_trunc,3},
                    153:   {"dp_quo",Pdp_quo,2},
                    154:
                    155:   /* s-poly */
                    156:   {"dp_sp",Pdp_sp,2},
                    157:   {"dp_sp_mod",Pdp_sp_mod,3},
                    158:
                    159:   /* m-reduction */
                    160:   {"dp_red",Pdp_red,3},
                    161:   {"dp_red_mod",Pdp_red_mod,4},
                    162:
                    163:   /* normal form */
                    164:   {"dp_nf",Pdp_nf,4},
                    165:   {"dp_nf_mod",Pdp_nf_mod,5},
                    166:   {"dp_nf_f",Pdp_nf_f,4},
1.9       noro      167:   {"dpm_nf_and_quotient",Pdpm_nf_and_quotient,-3},
1.17      noro      168:   {"dpm_nf_and_quotient2",Pdpm_nf_and_quotient2,-3},
1.11      noro      169:   {"dpm_nf_f",Pdpm_nf_f,-4},
                    170:   {"dpm_weyl_nf_f",Pdpm_weyl_nf_f,-4},
                    171:   {"dpm_nf",Pdpm_nf,-4},
1.1       noro      172:   {"dpm_sp",Pdpm_sp,2},
                    173:   {"dpm_weyl_sp",Pdpm_weyl_sp,2},
                    174:
                    175:   {"dp_true_nf",Pdp_true_nf,4},
                    176:   {"dp_true_nf_mod",Pdp_true_nf_mod,5},
                    177:   {"dp_true_nf_marked",Pdp_true_nf_marked,4},
                    178:   {"dp_true_nf_marked_mod",Pdp_true_nf_marked_mod,5},
                    179:
                    180:   {"dp_true_nf_and_quotient",Pdp_true_nf_and_quotient,3},
                    181:   {"dp_true_nf_and_quotient_mod",Pdp_true_nf_and_quotient_mod,4},
                    182:   {"dp_true_nf_and_quotient_marked",Pdp_true_nf_and_quotient_marked,4},
                    183:   {"dp_true_nf_and_quotient_marked_mod",Pdp_true_nf_and_quotient_marked_mod,5},
                    184:
                    185:   {"dp_lnf_mod",Pdp_lnf_mod,3},
                    186:   {"dp_nf_tab_f",Pdp_nf_tab_f,2},
                    187:   {"dp_nf_tab_mod",Pdp_nf_tab_mod,3},
                    188:   {"dp_lnf_f",Pdp_lnf_f,2},
                    189:
                    190:   /* Buchberger algorithm */
                    191:   {"dp_gr_main",Pdp_gr_main,-5},
                    192:   {"dp_interreduce",Pdp_interreduce,3},
                    193:   {"dp_gr_mod_main",Pdp_gr_mod_main,5},
                    194:   {"dp_gr_f_main",Pdp_gr_f_main,4},
                    195:   {"dp_gr_checklist",Pdp_gr_checklist,2},
                    196:   {"nd_f4",Pnd_f4,-4},
                    197:   {"nd_gr",Pnd_gr,-4},
1.24      noro      198:   {"nd_sba",Pnd_sba,-4},
1.25      noro      199:   {"nd_sba_f4",Pnd_sba_f4,-4},
1.1       noro      200:   {"nd_gr_trace",Pnd_gr_trace,-5},
                    201:   {"nd_f4_trace",Pnd_f4_trace,-5},
                    202:   {"nd_gr_postproc",Pnd_gr_postproc,5},
                    203:   {"nd_gr_recompute_trace",Pnd_gr_recompute_trace,5},
                    204:   {"nd_btog",Pnd_btog,-6},
                    205:   {"nd_weyl_gr_postproc",Pnd_weyl_gr_postproc,5},
                    206:   {"nd_weyl_gr",Pnd_weyl_gr,-4},
                    207:   {"nd_weyl_gr_trace",Pnd_weyl_gr_trace,-5},
                    208:   {"nd_nf",Pnd_nf,5},
                    209:   {"nd_weyl_nf",Pnd_weyl_nf,5},
                    210:
                    211:   /* F4 algorithm */
                    212:   {"dp_f4_main",Pdp_f4_main,3},
                    213:   {"dp_f4_mod_main",Pdp_f4_mod_main,4},
                    214:
                    215: /* weyl algebra */
                    216:   /* multiplication */
                    217:   {"dp_weyl_mul",Pdp_weyl_mul,2},
                    218:   {"dp_weyl_mul_mod",Pdp_weyl_mul_mod,3},
                    219:   {"dp_weyl_act",Pdp_weyl_act,2},
                    220:
                    221:   /* s-poly */
                    222:   {"dp_weyl_sp",Pdp_weyl_sp,2},
                    223:
                    224:   /* m-reduction */
                    225:   {"dp_weyl_red",Pdp_weyl_red,3},
                    226:
                    227:   /* normal form */
                    228:   {"dp_weyl_nf",Pdp_weyl_nf,4},
1.11      noro      229:   {"dpm_weyl_nf",Pdpm_weyl_nf,-4},
1.1       noro      230:   {"dp_weyl_nf_mod",Pdp_weyl_nf_mod,5},
                    231:   {"dp_weyl_nf_f",Pdp_weyl_nf_f,4},
                    232:
                    233:   {"dp_weyl_true_nf_and_quotient",Pdp_weyl_true_nf_and_quotient,3},
                    234:   {"dp_weyl_true_nf_and_quotient_mod",Pdp_weyl_true_nf_and_quotient_mod,4},
                    235:   {"dp_weyl_true_nf_and_quotient_marked",Pdp_weyl_true_nf_and_quotient_marked,4},
                    236:   {"dp_weyl_true_nf_and_quotient_marked_mod",Pdp_weyl_true_nf_and_quotient_marked_mod,5},
                    237:
                    238:
                    239:   /* Buchberger algorithm */
                    240:   {"dp_weyl_gr_main",Pdp_weyl_gr_main,-5},
                    241:   {"dp_weyl_gr_mod_main",Pdp_weyl_gr_mod_main,5},
                    242:   {"dp_weyl_gr_f_main",Pdp_weyl_gr_f_main,4},
                    243:
                    244:   /* F4 algorithm */
                    245:   {"dp_weyl_f4_main",Pdp_weyl_f4_main,3},
                    246:   {"dp_weyl_f4_mod_main",Pdp_weyl_f4_mod_main,4},
                    247:
1.3       noro      248:   /* Hilbert function */
                    249:   {"dp_monomial_hilbert_poincare",Pdp_monomial_hilbert_poincare,2},
                    250:
1.1       noro      251:   /* misc */
                    252:   {"dp_inv_or_split",Pdp_inv_or_split,3},
                    253:   {"dp_set_weight",Pdp_set_weight,-1},
                    254:   {"dp_set_module_weight",Pdp_set_module_weight,-1},
                    255:   {"dp_set_top_weight",Pdp_set_top_weight,-1},
                    256:   {"dp_weyl_set_weight",Pdp_weyl_set_weight,-1},
                    257:
                    258:   {"dp_get_denomlist",Pdp_get_denomlist,0},
                    259:   {0,0,0},
                    260: };
                    261:
                    262: struct ftab dp_supp_tab[] = {
                    263:   /* setting flags */
                    264:   {"dp_sort",Pdp_sort,1},
                    265:   {"dp_ord",Pdp_ord,-1},
1.9       noro      266:   {"dpm_set_schreyer",Pdpm_set_schreyer,-1},
1.18      noro      267:   {"dpm_set_schreyer_level",Pdpm_set_schreyer_level,1},
                    268:   {"dpm_schreyer_frame",Pdpm_schreyer_frame,1},
1.1       noro      269:   {"dpv_ord",Pdpv_ord,-2},
                    270:   {"dp_set_kara",Pdp_set_kara,-1},
                    271:   {"dp_nelim",Pdp_nelim,-1},
                    272:   {"dp_gr_flags",Pdp_gr_flags,-1},
                    273:   {"dp_gr_print",Pdp_gr_print,-1},
                    274:
                    275:   /* converters */
                    276:   {"homogenize",Phomogenize,3},
                    277:   {"dp_ptod",Pdp_ptod,-2},
                    278:   {"dp_dtop",Pdp_dtop,2},
                    279:   {"dp_homo",Pdp_homo,1},
                    280:   {"dp_dehomo",Pdp_dehomo,1},
                    281:   {"dp_etov",Pdp_etov,1},
                    282:   {"dp_vtoe",Pdp_vtoe,1},
                    283:   {"dp_dtov",Pdp_dtov,1},
                    284:   {"dp_mdtod",Pdp_mdtod,1},
                    285:   {"dp_mod",Pdp_mod,3},
                    286:   {"dp_rat",Pdp_rat,1},
                    287:   {"dp_ltod",Pdp_ltod,-2},
                    288:
                    289:   {"dpm_ltod",Pdpm_ltod,2},
1.9       noro      290:   {"dpm_dptodpm",Pdpm_dptodpm,2},
1.14      noro      291:   {"dpm_dtol",Pdpm_dtol,2},
1.16      noro      292:   {"dpm_homo",Pdpm_homo,1},
                    293:   {"dpm_dehomo",Pdpm_dehomo,1},
1.26    ! noro      294:   {"dpm_mod",Pdpm_mod,2},
1.1       noro      295:
                    296:   /* criteria */
                    297:   {"dp_cri1",Pdp_cri1,2},
                    298:   {"dp_cri2",Pdp_cri2,2},
                    299:   {"dp_criB",Pdp_criB,3},
                    300:
                    301:   /* simple operation */
                    302:   {"dp_subd",Pdp_subd,2},
                    303:   {"dp_lcm",Pdp_lcm,2},
                    304:   {"dp_hm",Pdp_hm,1},
                    305:   {"dp_ht",Pdp_ht,1},
                    306:   {"dp_hc",Pdp_hc,1},
                    307:   {"dpv_hm",Pdpv_hm,1},
                    308:   {"dpv_ht",Pdpv_ht,1},
                    309:   {"dpv_hc",Pdpv_hc,1},
                    310:   {"dpm_hm",Pdpm_hm,1},
                    311:   {"dpm_ht",Pdpm_ht,1},
                    312:   {"dpm_hc",Pdpm_hc,1},
1.10      noro      313:   {"dpm_hp",Pdpm_hp,1},
                    314:   {"dpm_rest",Pdpm_rest,1},
1.9       noro      315:   {"dpm_shift",Pdpm_shift,2},
                    316:   {"dpm_split",Pdpm_split,2},
1.21      noro      317:   {"dpm_extract",Pdpm_extract,2},
1.9       noro      318:   {"dpm_sort",Pdpm_sort,1},
1.1       noro      319:   {"dp_rest",Pdp_rest,1},
                    320:   {"dp_initial_term",Pdp_initial_term,1},
                    321:   {"dp_order",Pdp_order,1},
                    322:   {"dp_symb_add",Pdp_symb_add,2},
                    323:
                    324:   /* degree and size */
                    325:   {"dp_td",Pdp_td,1},
                    326:   {"dp_mag",Pdp_mag,1},
                    327:   {"dp_sugar",Pdp_sugar,1},
                    328:   {"dp_set_sugar",Pdp_set_sugar,2},
1.15      noro      329:   {"dpm_td",Pdpm_td,1},
1.1       noro      330:
                    331:   /* misc */
                    332:   {"dp_mbase",Pdp_mbase,1},
                    333:   {"dp_redble",Pdp_redble,2},
1.9       noro      334:   {"dpm_redble",Pdpm_redble,2},
1.1       noro      335:   {"dp_sep",Pdp_sep,2},
                    336:   {"dp_idiv",Pdp_idiv,2},
                    337:   {"dp_tdiv",Pdp_tdiv,2},
                    338:   {"dp_minp",Pdp_minp,2},
                    339:   {"dp_compute_last_w",Pdp_compute_last_w,5},
                    340:   {"dp_compute_last_t",Pdp_compute_last_t,5},
                    341:   {"dp_compute_essential_df",Pdp_compute_essential_df,2},
                    342:   {"dp_mono_raddec",Pdp_mono_raddec,2},
                    343:   {"dp_mono_reduce",Pdp_mono_reduce,2},
1.11      noro      344:   {"dpm_schreyer_base",Pdpm_schreyer_base,1},
1.19      noro      345:   {"dpm_list_to_array",Pdpm_list_to_array,1},
                    346:   {"dpm_sp_nf",Pdpm_sp_nf,4},
                    347:   {"dpm_insert_to_zlist",Pdpm_insert_to_zlist,3},
1.12      noro      348:   {"dpm_simplify_syz",Pdpm_simplify_syz,2},
1.1       noro      349:
                    350:   {"dp_rref2",Pdp_rref2,2},
                    351:   {"sumi_updatepairs",Psumi_updatepairs,3},
                    352:   {"sumi_symbolic",Psumi_symbolic,5},
                    353:
                    354:   {0,0,0}
                    355: };
                    356:
                    357: NODE compute_last_w(NODE g,NODE gh,int n,int **v,int row1,int **m1,int row2,int **m2);
                    358: Q compute_last_t(NODE g,NODE gh,Q t,VECT w1,VECT w2,NODE *homo,VECT *wp);
                    359:
1.3       noro      360: int comp_by_tdeg(DP *a,DP *b)
                    361: {
                    362:   int da,db;
                    363:
                    364:   da = BDY(*a)->dl->td;
                    365:   db = BDY(*b)->dl->td;
                    366:   if ( da>db ) return 1;
                    367:   else if ( da<db ) return -1;
                    368:   else return 0;
                    369: }
                    370:
                    371: void dl_print(DL d,int n)
                    372: {
                    373:   int i;
                    374:
                    375:   printf("<<");
                    376:   for ( i = 0; i < n; i++ )
                    377:     printf("%d ",d->d[i]);
                    378:   printf(">>\n");
                    379: }
                    380:
                    381: int simple_check(VECT b,int nv)
                    382: {
                    383:   int n,i,j;
                    384:   DL *p;
                    385:
                    386:   n = b->len; p = (DL *)b->body;
                    387:   for ( i = 0; i < n; i++ ) {
                    388:     for ( j = 0; j < nv; j++ ) {
                    389:       if ( p[i]->d[j] ) break;
                    390:     }
                    391:     if ( p[i]->d[j] != p[i]->td ) return 0;
                    392:   }
                    393:   return 1;
                    394: }
                    395:
                    396: void make_reduced(VECT b,int nv)
                    397: {
                    398:   int n,i,j;
                    399:   DL *p;
                    400:   DL pi;
                    401:
                    402:   n = b->len;
                    403:   p = (DL *)BDY(b);
                    404:   for ( i = 0; i < n; i++ ) {
                    405:     pi = p[i];
                    406:     if ( !pi ) continue;
                    407:     for ( j = 0; j < n; j++ )
                    408:       if ( i != j && p[j] && _dl_redble(pi,p[j],nv) ) p[j] = 0;
                    409:   }
                    410:   for ( i = j = 0; i < n; i++ )
                    411:     if ( p[i] ) p[j++] = p[i];
                    412:   b->len = j;
                    413: }
                    414:
                    415: void make_reduced2(VECT b,int k,int nv)
                    416: {
                    417:   int n,i,j,l;
                    418:   DL *p;
                    419:   DL pi;
                    420:
                    421:   n = b->len;
                    422:   p = (DL *)BDY(b);
                    423:   for ( i = l = k; i < n; i++ ) {
                    424:     pi = p[i];
                    425:     for ( j = 0; j < k; j++ )
                    426:       if ( _dl_redble(p[j],pi,nv) ) break;
                    427:     if ( j == k )
                    428:      p[l++] = pi;
                    429:   }
                    430:   b->len = l;
                    431: }
                    432:
                    433: int i_all,i_simple;
                    434:
                    435: P mhp_simple(VECT b,VECT x,P t)
                    436: {
                    437:   int n,i,j,nv;
                    438:   DL *p;
                    439:   P hp,mt,s,w;
                    440:   Z z;
                    441:
                    442:   n = b->len; nv = x->len; p = (DL *)BDY(b);
                    443:   hp = (P)ONE;
                    444:   for ( i = 0; i < n; i++ ) {
                    445:     for ( j = 0; j < nv; j++ )
                    446:       if ( p[i]->d[j] ) break;
                    447:     STOZ(p[i]->d[j],z);
                    448:     chsgnp(t,&mt); mt->dc->d =z;
                    449:     addp(CO,mt,(P)ONE,&s); mulp(CO,hp,s,&w); hp = w;
                    450:   }
                    451:   return hp;
                    452: }
                    453:
                    454: struct oEGT eg_comp;
                    455:
                    456: void mhp_rec(VECT b,VECT x,P t,P *r)
                    457: {
                    458:   int n,i,j,k,l,i2,nv,len;
                    459:   int *d;
                    460:   Z mone,z;
                    461:   DCP dc,dc1;
                    462:   P s;
                    463:   P *r2;
                    464:   DL *p,*q;
                    465:   DL pi,xj,d1;
                    466:   VECT c;
                    467: struct oEGT eg0,eg1;
                    468:
                    469:   i_all++;
                    470:   n = b->len; nv = x->len; p = (DL *)BDY(b);
                    471:   if ( !n ) {
                    472:     r[0] = (P)ONE;
                    473:     return;
                    474:   }
                    475:   if ( n == 1 && p[0]->td == 0 )
                    476:     return;
                    477:   for ( i = 0; i < n; i++ )
                    478:     if ( p[i]->td > 1 ) break;
                    479:   if ( i == n ) {
                    480:     r[n] = (P)ONE;
                    481:     return;
                    482:   }
                    483: #if 0
                    484:   if ( simple_check(b,nv) ) {
                    485:     i_simple++;
                    486:     r[0] = mhp_simple(b,x,t);
                    487:     return;
                    488:   }
                    489: #endif
                    490:   for ( j = 0, d = p[i]->d; j < nv; j++ )
                    491:     if ( d[j] ) break;
                    492:   xj = BDY(x)[j];
                    493:   MKVECT(c,n); q = (DL *)BDY(c);
                    494:   for ( i = k = l = 0; i < n; i++ )
                    495:     if ( p[i]->d[j] ) {
                    496:       pi = p[i];
                    497:       NEWDL(d1,nv); d1->td =pi->td - 1;
                    498:       memcpy(d1->d,pi->d,nv*sizeof(int));
                    499:       d1->d[j]--;
                    500:       p[k++] = d1;
                    501:     } else
                    502:       q[l++] = p[i];
                    503:   for ( i = k, i2 = 0; i2 < l; i++, i2++ )
                    504:     p[i] = q[i2];
                    505:   /* b=(b[0]/xj,...,b[k-1]/xj,b[k],...b[n-1]) where
                    506:     b[0],...,b[k-1] are divisible by k */
                    507:   make_reduced2(b,k,nv);
                    508:   mhp_rec(b,x,t,r);
                    509:   /* c = (b[0],...,b[l-1],xj) */
                    510:   q[l] = xj; c->len = l+1;
                    511:   r2 = (P *)CALLOC(nv+1,sizeof(P));
                    512:   mhp_rec(c,x,t,r2);
                    513: // get_eg(&eg0);
                    514:   for ( i = 0; i <= nv; i++ ) {
                    515:     mulp(CO,r[i],t,&s); addp(CO,s,r2[i],&r[i]);
                    516:   }
                    517: // get_eg(&eg1); add_eg(&eg_comp,&eg0,&eg1);
                    518: }
                    519:
1.4       noro      520: /* (n+a)Cb as a polynomial of n; return (n+a)*...*(n+a-b+1) */
                    521:
                    522: P binpoly(P n,int a,int b)
                    523: {
                    524:   Z z;
                    525:   P s,r,t;
                    526:   int i;
                    527:
                    528:   STOZ(a,z); addp(CO,n,(P)z,&s); r = (P)ONE;
                    529:   for ( i = 0; i < b; i++ ) {
                    530:     mulp(CO,r,s,&t); r = t;
                    531:     subp(CO,s,(P)ONE,&t); s = t;
                    532:   }
                    533:   return r;
                    534: }
                    535:
1.9       noro      536: void ibin(unsigned long int n,unsigned long int k,Z *r);
                    537:
1.8       noro      538: void mhp_to_hf(VL vl,P hp,int n,P *plist,VECT *head,P *hf)
1.5       noro      539: {
                    540:   P tv,gcd,q,h,hphead,tt,ai,hpoly,nv,bp,w;
1.8       noro      541:   Z d,z;
1.5       noro      542:   DCP dc,topdc;
                    543:   VECT hfhead;
                    544:   int i,s,qd;
                    545:
                    546:   if ( !hp ) {
                    547:     MKVECT(hfhead,0); *head = hfhead;
1.8       noro      548:     *hf = 0;
1.5       noro      549:   } else {
                    550:     makevar("t",&tv);
                    551:     ezgcdp(CO,hp,plist[n],&gcd);
                    552:     if ( NUM(gcd) ) {
                    553:       s = n;
                    554:       q = hp;
                    555:     } else {
                    556:       s = n-ZTOS(DEG(DC(gcd)));
                    557:       divsp(CO,hp,plist[n-s],&q);
                    558:     }
                    559:     if ( NUM(q) ) qd = 0;
                    560:     else qd = ZTOS(DEG(DC(q)));
1.6       noro      561:     if ( s == 0 ) {
                    562:       MKVECT(hfhead,qd+1);
                    563:       for ( i = 0; i <= qd; i++ ) {
                    564:         coefp(q,i,(P *)&BDY(hfhead)[i]);
1.5       noro      565:       }
1.6       noro      566:       *head = hfhead;
                    567:       *hf = 0;
                    568:     } else {
                    569:       if ( qd ) {
                    570:         topdc = 0;
                    571:         for ( i = 0; i < qd; i++ ) {
                    572:           NEWDC(dc); NEXT(dc) = topdc;
1.9       noro      573:           ibin(i+s-1,s-1,(Z *)&COEF(dc));
1.6       noro      574:           STOZ(i,d); DEG(dc) = d;
                    575:           topdc = dc;
                    576:         }
                    577:         MKP(VR(tv),topdc,h);
                    578:         mulp(CO,h,q,&hphead);
                    579:       }
                    580:       MKVECT(hfhead,qd);
                    581:       for ( i = 0; i < qd; i++ )
                    582:         coefp(hphead,i,(P *)&BDY(hfhead)[i]);
                    583:       *head = hfhead;
                    584:       hpoly = 0;
                    585:       makevar("n",&nv);
                    586:       for ( i = 0; i <= qd; i++ ) {
                    587:         coefp(q,i,&ai);
                    588:         bp = binpoly(nv,s-i-1,s-1);
                    589:         mulp(CO,ai,bp,&tt);
                    590:         addp(CO,hpoly,tt,&w);
                    591:         hpoly = w;
                    592:       }
1.8       noro      593:       if ( s > 2 ) {
                    594:         factorialz(s-1,&z);
                    595:         divsp(CO,hpoly,(P)z,&tt); hpoly = tt;
                    596:       }
1.6       noro      597:       *hf = hpoly;
1.8       noro      598:       for ( i = qd-1; i >= 0; i-- ) {
                    599:         UTOZ(i,z);
                    600:         substp(CO,hpoly,VR(nv),(P)z,&tt);
                    601:         if ( cmpz((Z)tt,(Z)BDY(hfhead)[i]) ) break;
                    602:       }
                    603:       hfhead->len = i+1;
1.5       noro      604:     }
                    605:   }
                    606: }
                    607:
                    608: /* create (1,1-t,...,(1-t)^n) */
                    609:
                    610: P *mhp_prep(int n,P *tv) {
                    611:   P *plist;
                    612:   P mt,t1;
                    613:   int i;
                    614:
                    615:   plist = (P *)MALLOC((n+1)*sizeof(P));
                    616:   /* t1 = 1-t */
                    617:   makevar("t",tv); chsgnp(*tv,&mt); addp(CO,mt,(P)ONE,&t1);
                    618:   for ( plist[0] = (P)ONE, i = 1; i <= n; i++ )
                    619:     mulp(CO,plist[i-1],t1,&plist[i]);
                    620:   return plist;
                    621: }
                    622:
                    623: P mhp_ctop(P *r,P *plist,int n)
                    624: {
                    625:   int i;
                    626:   P hp,u,w;
                    627:
                    628:   for ( hp = 0, i = 0; i <= n; i++ ) {
                    629:     mulp(CO,plist[i],r[i],&u); addp(CO,u,hp,&w); hp = w;
                    630:   }
                    631:   return hp;
                    632: }
                    633:
1.3       noro      634: void Pdp_monomial_hilbert_poincare(NODE arg,LIST *rp)
                    635: {
                    636:   LIST g,v;
                    637:   VL vl;
1.5       noro      638:   int m,n,i;
                    639:   VECT b,x,hfhead;
1.3       noro      640:   NODE t,nd;
1.5       noro      641:   Z z,den;
                    642:   P hp,tv,mt,t1,u,w,hpoly;
1.3       noro      643:   DP a;
                    644:   DL *p;
                    645:   P *plist,*r;
1.4       noro      646:   Obj val;
1.3       noro      647:
                    648:   i_simple = i_all = 0;
                    649:   g = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
                    650:   pltovl(v,&vl);
                    651:   m = length(BDY(g)); MKVECT(b,m); p = (DL *)BDY(b);
                    652:   for ( t = BDY(g), i = 0; t; t = NEXT(t), i++ ) {
1.5       noro      653:     if ( !BDY(t) )
                    654:       p[i] = 0;
                    655:     else {
                    656:       ptod(CO,vl,(P)BDY(t),&a); p[i] = BDY(a)->dl;
                    657:     }
1.3       noro      658:   }
                    659:   n = length(BDY(v)); MKVECT(x,n); p = (DL *)BDY(x);
                    660:   for ( t = BDY(v), i = 0; t; t = NEXT(t), i++ ) {
                    661:     ptod(CO,vl,(P)BDY(t),&a); p[i] = BDY(a)->dl;
                    662:   }
1.5       noro      663:
1.3       noro      664:   r = (P *)CALLOC(n+1,sizeof(P));
1.5       noro      665:   plist = mhp_prep(n,&tv);
1.3       noro      666:   make_reduced(b,n);
                    667:   mhp_rec(b,x,tv,r);
1.5       noro      668:   hp = mhp_ctop(r,plist,n);
1.8       noro      669:   mhp_to_hf(CO,hp,n,plist,&hfhead,&hpoly);
1.4       noro      670:   UTOZ(n,z);
1.8       noro      671:   nd = mknode(4,hp,z,hfhead,hpoly);
1.5       noro      672:   MKLIST(*rp,nd);
1.3       noro      673: }
1.5       noro      674:
1.1       noro      675: void Pdp_compute_last_t(NODE arg,LIST *rp)
                    676: {
                    677:   NODE g,gh,homo,n;
                    678:   LIST hlist;
                    679:   VECT v1,v2,w;
                    680:   Q t;
                    681:
                    682:   g = (NODE)BDY((LIST)ARG0(arg));
                    683:   gh = (NODE)BDY((LIST)ARG1(arg));
                    684:   t = (Q)ARG2(arg);
                    685:   v1 = (VECT)ARG3(arg);
                    686:   v2 = (VECT)ARG4(arg);
                    687:   t = compute_last_t(g,gh,t,v1,v2,&homo,&w);
                    688:   MKLIST(hlist,homo);
                    689:   n = mknode(3,t,w,hlist);
                    690:   MKLIST(*rp,n);
                    691: }
                    692:
                    693: void Pdp_compute_last_w(NODE arg,LIST *rp)
                    694: {
                    695:   NODE g,gh,r;
                    696:   VECT w,rv;
                    697:   LIST l;
                    698:   MAT w1,w2;
                    699:   int row1,row2,i,j,n;
                    700:   int *v;
                    701:   int **m1,**m2;
                    702:   Z q;
                    703:
                    704:   g = (NODE)BDY((LIST)ARG0(arg));
                    705:   gh = (NODE)BDY((LIST)ARG1(arg));
                    706:   w = (VECT)ARG2(arg);
                    707:   w1 = (MAT)ARG3(arg);
                    708:   w2 = (MAT)ARG4(arg);
                    709:   n = w1->col;
                    710:   row1 = w1->row;
                    711:   row2 = w2->row;
                    712:   if ( w ) {
                    713:     v = W_ALLOC(n);
1.2       noro      714:     for ( i = 0; i < n; i++ ) v[i] = ZTOS((Q)w->body[i]);
1.1       noro      715:   } else v = 0;
                    716:   m1 = almat(row1,n);
                    717:   for ( i = 0; i < row1; i++ )
1.2       noro      718:     for ( j = 0; j < n; j++ ) m1[i][j] = ZTOS((Q)w1->body[i][j]);
1.1       noro      719:   m2 = almat(row2,n);
                    720:   for ( i = 0; i < row2; i++ )
1.2       noro      721:     for ( j = 0; j < n; j++ ) m2[i][j] = ZTOS((Q)w2->body[i][j]);
1.1       noro      722:   r = compute_last_w(g,gh,n,&v,row1,m1,row2,m2);
                    723:   if ( !r ) *rp = 0;
                    724:   else {
                    725:     MKVECT(rv,n);
                    726:     for ( i = 0; i < n; i++ ) {
1.2       noro      727:       STOZ(v[i],q); rv->body[i] = (pointer)q;
1.1       noro      728:     }
                    729:     MKLIST(l,r);
                    730:     r = mknode(2,rv,l);
                    731:     MKLIST(*rp,r);
                    732:   }
                    733: }
                    734:
                    735: NODE compute_essential_df(DP *g,DP *gh,int n);
                    736:
                    737: void Pdp_compute_essential_df(NODE arg,LIST *rp)
                    738: {
                    739:   VECT g,gh;
                    740:   NODE r;
                    741:
                    742:   g = (VECT)ARG0(arg);
                    743:   gh = (VECT)ARG1(arg);
                    744:   r = (NODE)compute_essential_df((DP *)BDY(g),(DP *)BDY(gh),g->len);
                    745:   MKLIST(*rp,r);
                    746: }
                    747:
                    748: void Pdp_inv_or_split(NODE arg,Obj *rp)
                    749: {
                    750:   NODE gb,newgb;
                    751:   DP f,inv;
                    752:   struct order_spec *spec;
                    753:   LIST list;
                    754:
                    755:   do_weyl = 0; dp_fcoeffs = 0;
                    756:   asir_assert(ARG0(arg),O_LIST,"dp_inv_or_split");
                    757:   asir_assert(ARG1(arg),O_DP,"dp_inv_or_split");
                    758:   if ( !create_order_spec(0,(Obj)ARG2(arg),&spec) )
                    759:     error("dp_inv_or_split : invalid order specification");
                    760:   gb = BDY((LIST)ARG0(arg));
                    761:   f = (DP)ARG1(arg);
                    762:   newgb = (NODE)dp_inv_or_split(gb,f,spec,&inv);
                    763:   if ( !newgb ) {
                    764:     /* invertible */
                    765:     *rp = (Obj)inv;
                    766:   } else {
                    767:     MKLIST(list,newgb);
                    768:     *rp = (Obj)list;
                    769:   }
                    770: }
                    771:
                    772: void Pdp_sort(NODE arg,DP *rp)
                    773: {
                    774:   dp_sort((DP)ARG0(arg),rp);
                    775: }
                    776:
                    777: void Pdp_mdtod(NODE arg,DP *rp)
                    778: {
                    779:   MP m,mr,mr0;
                    780:   DP p;
                    781:   P t;
                    782:
                    783:   p = (DP)ARG0(arg);
                    784:   if ( !p )
                    785:     *rp = 0;
                    786:   else {
                    787:     for ( mr0 = 0, m = BDY(p); m; m = NEXT(m) ) {
                    788:       mptop((P)m->c,&t); NEXTMP(mr0,mr); mr->c = (Obj)t; mr->dl = m->dl;
                    789:     }
                    790:     NEXT(mr) = 0; MKDP(p->nv,mr0,*rp); (*rp)->sugar = p->sugar;
                    791:   }
                    792: }
                    793:
                    794: void Pdp_sep(NODE arg,VECT *rp)
                    795: {
                    796:   DP p,r;
                    797:   MP m,t;
                    798:   MP *w0,*w;
                    799:   int i,n,d,nv,sugar;
                    800:   VECT v;
                    801:   pointer *pv;
                    802:
                    803:   p = (DP)ARG0(arg); m = BDY(p);
1.2       noro      804:   d = ZTOS((Q)ARG1(arg));
1.1       noro      805:   for ( t = m, n = 0; t; t = NEXT(t), n++ );
                    806:   if ( d > n )
                    807:     d = n;
                    808:   MKVECT(v,d); *rp = v;
                    809:   pv = BDY(v); nv = p->nv; sugar = p->sugar;
                    810:   w0 = (MP *)MALLOC(d*sizeof(MP)); bzero(w0,d*sizeof(MP));
                    811:   w = (MP *)MALLOC(d*sizeof(MP)); bzero(w,d*sizeof(MP));
                    812:   for ( t = BDY(p), i = 0; t; t = NEXT(t), i++, i %= d  ) {
                    813:     NEXTMP(w0[i],w[i]); w[i]->c = t->c; w[i]->dl = t->dl;
                    814:   }
                    815:   for ( i = 0; i < d; i++ ) {
                    816:     NEXT(w[i]) = 0; MKDP(nv,w0[i],r); r->sugar = sugar;
                    817:     pv[i] = (pointer)r;
                    818:   }
                    819: }
                    820:
                    821: void Pdp_idiv(NODE arg,DP *rp)
                    822: {
                    823:   dp_idiv((DP)ARG0(arg),(Z)ARG1(arg),rp);
                    824: }
                    825:
                    826: void Pdp_cont(NODE arg,Z *rp)
                    827: {
                    828:   dp_cont((DP)ARG0(arg),rp);
                    829: }
                    830:
1.21      noro      831: void dpm_ptozp(DPM p,Z *cont,DPM *r);
                    832:
                    833: void Pdpm_remove_cont(NODE arg,LIST *rp)
                    834: {
                    835:   NODE nd;
                    836:   Z cont;
                    837:   DPM p;
                    838:
                    839:   dpm_ptozp((DPM)ARG0(arg),&cont,&p);
                    840:   nd = mknode(2,cont,p);
                    841:   MKLIST(*rp,nd);
                    842: }
                    843:
1.1       noro      844: void Pdp_dtov(NODE arg,VECT *rp)
                    845: {
                    846:   dp_dtov((DP)ARG0(arg),rp);
                    847: }
                    848:
                    849: void Pdp_mbase(NODE arg,LIST *rp)
                    850: {
                    851:   NODE mb;
                    852:
                    853:   asir_assert(ARG0(arg),O_LIST,"dp_mbase");
                    854:   dp_mbase(BDY((LIST)ARG0(arg)),&mb);
                    855:   MKLIST(*rp,mb);
                    856: }
                    857:
                    858: void Pdp_etov(NODE arg,VECT *rp)
                    859: {
                    860:   DP dp;
                    861:   int n,i;
                    862:   int *d;
                    863:   VECT v;
                    864:   Z t;
                    865:
                    866:   dp = (DP)ARG0(arg);
                    867:   asir_assert(dp,O_DP,"dp_etov");
                    868:   n = dp->nv; d = BDY(dp)->dl->d;
                    869:   MKVECT(v,n);
                    870:   for ( i = 0; i < n; i++ ) {
1.2       noro      871:     STOZ(d[i],t); v->body[i] = (pointer)t;
1.1       noro      872:   }
                    873:   *rp = v;
                    874: }
                    875:
                    876: void Pdp_vtoe(NODE arg,DP *rp)
                    877: {
                    878:   DP dp;
                    879:   DL dl;
                    880:   MP m;
                    881:   int n,i,td;
                    882:   int *d;
                    883:   VECT v;
                    884:
                    885:   v = (VECT)ARG0(arg);
                    886:   asir_assert(v,O_VECT,"dp_vtoe");
                    887:   n = v->len;
                    888:   NEWDL(dl,n); d = dl->d;
                    889:   for ( i = 0, td = 0; i < n; i++ ) {
1.2       noro      890:     d[i] = ZTOS((Q)(v->body[i])); td += MUL_WEIGHT(d[i],i);
1.1       noro      891:   }
                    892:   dl->td = td;
                    893:   NEWMP(m); m->dl = dl; m->c = (Obj)ONE; NEXT(m) = 0;
                    894:   MKDP(n,m,dp); dp->sugar = td;
                    895:   *rp = dp;
                    896: }
                    897:
                    898: void Pdp_lnf_mod(NODE arg,LIST *rp)
                    899: {
                    900:   DP r1,r2;
                    901:   NODE b,g,n;
                    902:   int mod;
                    903:
                    904:   asir_assert(ARG0(arg),O_LIST,"dp_lnf_mod");
                    905:   asir_assert(ARG1(arg),O_LIST,"dp_lnf_mod");
                    906:   asir_assert(ARG2(arg),O_N,"dp_lnf_mod");
                    907:   b = BDY((LIST)ARG0(arg)); g = BDY((LIST)ARG1(arg));
1.2       noro      908:   mod = ZTOS((Q)ARG2(arg));
1.1       noro      909:   dp_lnf_mod((DP)BDY(b),(DP)BDY(NEXT(b)),g,mod,&r1,&r2);
                    910:   NEWNODE(n); BDY(n) = (pointer)r1;
                    911:   NEWNODE(NEXT(n)); BDY(NEXT(n)) = (pointer)r2;
                    912:   NEXT(NEXT(n)) = 0; MKLIST(*rp,n);
                    913: }
                    914:
                    915: void Pdp_lnf_f(NODE arg,LIST *rp)
                    916: {
                    917:   DP r1,r2;
                    918:   NODE b,g,n;
                    919:
                    920:   asir_assert(ARG0(arg),O_LIST,"dp_lnf_f");
                    921:   asir_assert(ARG1(arg),O_LIST,"dp_lnf_f");
                    922:   b = BDY((LIST)ARG0(arg)); g = BDY((LIST)ARG1(arg));
                    923:   dp_lnf_f((DP)BDY(b),(DP)BDY(NEXT(b)),g,&r1,&r2);
                    924:   NEWNODE(n); BDY(n) = (pointer)r1;
                    925:   NEWNODE(NEXT(n)); BDY(NEXT(n)) = (pointer)r2;
                    926:   NEXT(NEXT(n)) = 0; MKLIST(*rp,n);
                    927: }
                    928:
                    929: void Pdp_nf_tab_mod(NODE arg,DP *rp)
                    930: {
                    931:   asir_assert(ARG0(arg),O_DP,"dp_nf_tab_mod");
                    932:   asir_assert(ARG1(arg),O_VECT,"dp_nf_tab_mod");
                    933:   asir_assert(ARG2(arg),O_N,"dp_nf_tab_mod");
                    934:   dp_nf_tab_mod((DP)ARG0(arg),(LIST *)BDY((VECT)ARG1(arg)),
1.2       noro      935:     ZTOS((Q)ARG2(arg)),rp);
1.1       noro      936: }
                    937:
                    938: void Pdp_nf_tab_f(NODE arg,DP *rp)
                    939: {
                    940:   asir_assert(ARG0(arg),O_DP,"dp_nf_tab_f");
                    941:   asir_assert(ARG1(arg),O_VECT,"dp_nf_tab_f");
                    942:   dp_nf_tab_f((DP)ARG0(arg),(LIST *)BDY((VECT)ARG1(arg)),rp);
                    943: }
                    944:
1.9       noro      945: extern int dpm_ordtype;
                    946:
1.1       noro      947: void Pdp_ord(NODE arg,Obj *rp)
                    948: {
                    949:   struct order_spec *spec;
                    950:   LIST v;
                    951:   struct oLIST f;
                    952:   Num homo;
                    953:   int modular;
                    954:
                    955:   f.id = O_LIST; f.body = 0;
                    956:   if ( !arg && !current_option )
                    957:     *rp = dp_current_spec->obj;
                    958:   else {
                    959:     if ( current_option )
                    960:       parse_gr_option(&f,current_option,&v,&homo,&modular,&spec);
                    961:     else if ( !create_order_spec(0,(Obj)ARG0(arg),&spec) )
                    962:       error("dp_ord : invalid order specification");
                    963:     initd(spec); *rp = spec->obj;
1.15      noro      964:     if ( spec->id >= 256 ) dpm_ordtype = spec->module_ordtype;
1.1       noro      965:   }
                    966: }
                    967:
                    968: void Pdp_ptod(NODE arg,DP *rp)
                    969: {
                    970:   P p;
                    971:   NODE n;
                    972:   VL vl,tvl;
                    973:   struct oLIST f;
                    974:   int ac;
                    975:   LIST v;
                    976:   Num homo;
                    977:   int modular;
                    978:   struct order_spec *ord;
                    979:
                    980:   asir_assert(ARG0(arg),O_P,"dp_ptod");
                    981:   p = (P)ARG0(arg);
                    982:   ac = argc(arg);
                    983:   if ( ac == 1 ) {
                    984:     if ( current_option ) {
                    985:       f.id = O_LIST; f.body = mknode(1,p);
                    986:       parse_gr_option(&f,current_option,&v,&homo,&modular,&ord);
                    987:       initd(ord);
                    988:     } else
                    989:       error("dp_ptod : invalid argument");
                    990:   } else {
                    991:     asir_assert(ARG1(arg),O_LIST,"dp_ptod");
                    992:     v = (LIST)ARG1(arg);
                    993:   }
                    994:   for ( vl = 0, n = BDY(v); n; n = NEXT(n) ) {
                    995:     if ( !vl ) {
                    996:       NEWVL(vl); tvl = vl;
                    997:     } else {
                    998:       NEWVL(NEXT(tvl)); tvl = NEXT(tvl);
                    999:     }
                   1000:     VR(tvl) = VR((P)BDY(n));
                   1001:   }
                   1002:   if ( vl )
                   1003:     NEXT(tvl) = 0;
                   1004:   ptod(CO,vl,p,rp);
                   1005: }
                   1006:
                   1007: void Phomogenize(NODE arg,Obj *rp)
                   1008: {
                   1009:   P p;
                   1010:   DP d,h;
                   1011:   NODE n;
                   1012:   V hv;
                   1013:   VL vl,tvl,last;
                   1014:   struct oLIST f;
                   1015:   LIST v;
                   1016:
                   1017:   asir_assert(ARG0(arg),O_P,"homogenize");
                   1018:   p = (P)ARG0(arg);
                   1019:   asir_assert(ARG1(arg),O_LIST,"homogenize");
                   1020:   v = (LIST)ARG1(arg);
                   1021:   asir_assert(ARG2(arg),O_P,"homogenize");
                   1022:   hv = VR((P)ARG2(arg));
                   1023:   for ( vl = 0, n = BDY(v); n; n = NEXT(n) ) {
                   1024:     if ( !vl ) {
                   1025:       NEWVL(vl); tvl = vl;
                   1026:     } else {
                   1027:       NEWVL(NEXT(tvl)); tvl = NEXT(tvl);
                   1028:     }
                   1029:     VR(tvl) = VR((P)BDY(n));
                   1030:   }
                   1031:   if ( vl ) {
                   1032:     last = tvl;
                   1033:     NEXT(tvl) = 0;
                   1034:   }
                   1035:   ptod(CO,vl,p,&d);
                   1036:   dp_homo(d,&h);
                   1037:   NEWVL(NEXT(last)); last = NEXT(last);
                   1038:   VR(last) = hv; NEXT(last) = 0;
                   1039:   dtop(CO,vl,h,rp);
                   1040: }
                   1041:
                   1042: void Pdp_ltod(NODE arg,DPV *rp)
                   1043: {
                   1044:   NODE n;
                   1045:   VL vl,tvl;
                   1046:   LIST f,v;
                   1047:   int sugar,i,len,ac,modular;
                   1048:   Num homo;
                   1049:   struct order_spec *ord;
                   1050:   DP *e;
                   1051:   NODE nd,t;
                   1052:
                   1053:   ac = argc(arg);
                   1054:   asir_assert(ARG0(arg),O_LIST,"dp_ptod");
                   1055:   f = (LIST)ARG0(arg);
                   1056:   if ( ac == 1 ) {
                   1057:     if ( current_option ) {
                   1058:       parse_gr_option(f,current_option,&v,&homo,&modular,&ord);
                   1059:       initd(ord);
                   1060:     } else
                   1061:       error("dp_ltod : invalid argument");
                   1062:   } else {
                   1063:     asir_assert(ARG1(arg),O_LIST,"dp_ptod");
                   1064:     v = (LIST)ARG1(arg);
                   1065:   }
                   1066:   for ( vl = 0, n = BDY(v); n; n = NEXT(n) ) {
                   1067:     if ( !vl ) {
                   1068:       NEWVL(vl); tvl = vl;
                   1069:     } else {
                   1070:       NEWVL(NEXT(tvl)); tvl = NEXT(tvl);
                   1071:     }
                   1072:     VR(tvl) = VR((P)BDY(n));
                   1073:   }
                   1074:   if ( vl )
                   1075:     NEXT(tvl) = 0;
                   1076:
                   1077:   nd = BDY(f);
                   1078:   len = length(nd);
                   1079:   e = (DP *)MALLOC(len*sizeof(DP));
                   1080:   sugar = 0;
                   1081:   for ( i = 0, t = nd; i < len; i++, t = NEXT(t) ) {
                   1082:     ptod(CO,vl,(P)BDY(t),&e[i]);
                   1083:     if ( e[i] )
                   1084:       sugar = MAX(sugar,e[i]->sugar);
                   1085:   }
                   1086:   MKDPV(len,e,*rp);
                   1087: }
                   1088:
                   1089: void Pdpm_ltod(NODE arg,DPM *rp)
                   1090: {
                   1091:   NODE n;
                   1092:   VL vl,tvl;
                   1093:   LIST f,v;
                   1094:   int i,len;
                   1095:   NODE nd;
                   1096:   NODE t;
                   1097:   DP d;
                   1098:   DPM s,u,w;
                   1099:
                   1100:   f = (LIST)ARG0(arg);
                   1101:   v = (LIST)ARG1(arg);
                   1102:   for ( vl = 0, n = BDY(v); n; n = NEXT(n) ) {
                   1103:     if ( !vl ) {
                   1104:       NEWVL(vl); tvl = vl;
                   1105:     } else {
                   1106:       NEWVL(NEXT(tvl)); tvl = NEXT(tvl);
                   1107:     }
                   1108:     VR(tvl) = VR((P)BDY(n));
                   1109:   }
                   1110:   if ( vl )
                   1111:     NEXT(tvl) = 0;
                   1112:
                   1113:   nd = BDY(f);
                   1114:   len = length(nd);
1.9       noro     1115:   for ( i = 1, t = nd, s = 0; i <= len; i++, t = NEXT(t) ) {
1.1       noro     1116:     ptod(CO,vl,(P)BDY(t),&d);
                   1117:     dtodpm(d,i,&u);
                   1118:     adddpm(CO,s,u,&w); s = w;
                   1119:   }
                   1120:   *rp = s;
                   1121: }
                   1122:
1.9       noro     1123: // c*[monomial,i]+... -> c*<<monomial:i>>+...
                   1124:
                   1125: void Pdpm_dptodpm(NODE arg,DPM *rp)
                   1126: {
                   1127:   DP p;
                   1128:   MP mp;
1.16      noro     1129:   int pos,shift;
1.9       noro     1130:   DMM m0,m;
                   1131:
                   1132:   p = (DP)ARG0(arg);
                   1133:   pos = ZTOS((Z)ARG1(arg));
                   1134:   if ( pos <= 0 )
                   1135:     error("dpm_mtod : position must be positive");
                   1136:   if ( !p ) *rp = 0;
                   1137:   else {
                   1138:     for ( m0 = 0, mp = BDY(p); mp; mp = NEXT(mp) ) {
                   1139:       NEXTDMM(m0,m); m->dl = mp->dl; m->c = mp->c; m->pos = pos;
                   1140:     }
1.21      noro     1141:     if ( dp_current_spec->module_top_weight ) {
1.16      noro     1142:       if ( pos > dp_current_spec->module_rank )
                   1143:         error("dpm_dptodpm : inconsistent order spec");
                   1144:       shift = dp_current_spec->module_top_weight[pos-1];
                   1145:       m->dl->td += shift;
                   1146:     } else
                   1147:       shift = 0;
                   1148:
                   1149:     MKDPM(p->nv,m0,*rp); (*rp)->sugar = p->sugar+shift;
1.9       noro     1150:   }
                   1151: }
                   1152:
1.1       noro     1153: void Pdpm_dtol(NODE arg,LIST *rp)
                   1154: {
                   1155:   DPM a;
                   1156:   NODE nd,nd1;
                   1157:   VL vl,tvl;
                   1158:   int n,len,i,pos,nv;
                   1159:   MP *w;
                   1160:   DMM t;
                   1161:   DMM *wa;
                   1162:   MP m;
                   1163:   DP u;
                   1164:   Obj s;
                   1165:
                   1166:   a = (DPM)ARG0(arg);
1.14      noro     1167:   if ( !a ) {
                   1168:    MKLIST(*rp,0);
                   1169:    return;
                   1170:   }
1.1       noro     1171:   for ( vl = 0, nd = BDY((LIST)ARG1(arg)), nv = 0; nd; nd = NEXT(nd), nv++ ) {
                   1172:     if ( !vl ) {
                   1173:       NEWVL(vl); tvl = vl;
                   1174:     } else {
                   1175:       NEWVL(NEXT(tvl)); tvl = NEXT(tvl);
                   1176:     }
                   1177:     VR(tvl) = VR((P)BDY(nd));
                   1178:   }
                   1179:   if ( vl )
                   1180:     NEXT(tvl) = 0;
1.14      noro     1181:   for ( t = BDY(a), n = 0; t; t = NEXT(t) )
                   1182:     if ( t->pos > n ) n = t->pos;
1.1       noro     1183:    w = (MP *)CALLOC(n,sizeof(MP));
                   1184:    for ( t = BDY(a), len = 0; t; t = NEXT(t) ) len++;
                   1185:    wa = (DMM *)MALLOC(len*sizeof(DMM));
                   1186:    for ( t = BDY(a), i = 0; t; t = NEXT(t), i++ ) wa[i] = t;
                   1187:    for ( i = len-1; i >= 0; i-- ) {
                   1188:      NEWMP(m); m->dl = wa[i]->dl; C(m) = C(wa[i]);
                   1189:      pos = wa[i]->pos;
1.14      noro     1190:      NEXT(m) = w[pos-1];
                   1191:      w[pos-1] = m;
1.1       noro     1192:    }
                   1193:   nd = 0;
                   1194:   for ( i = n-1; i >= 0; i-- ) {
                   1195:     MKDP(nv,w[i],u); u->sugar = a->sugar; /* XXX */
                   1196:     dtop(CO,vl,u,&s);
                   1197:     MKNODE(nd1,s,nd); nd = nd1;
                   1198:   }
                   1199:   MKLIST(*rp,nd);
                   1200: }
                   1201:
                   1202: void Pdp_dtop(NODE arg,Obj *rp)
                   1203: {
                   1204:   NODE n;
                   1205:   VL vl,tvl;
                   1206:
                   1207:   asir_assert(ARG0(arg),O_DP,"dp_dtop");
                   1208:   asir_assert(ARG1(arg),O_LIST,"dp_dtop");
                   1209:   for ( vl = 0, n = BDY((LIST)ARG1(arg)); n; n = NEXT(n) ) {
                   1210:     if ( !vl ) {
                   1211:       NEWVL(vl); tvl = vl;
                   1212:     } else {
                   1213:       NEWVL(NEXT(tvl)); tvl = NEXT(tvl);
                   1214:     }
                   1215:     VR(tvl) = VR((P)BDY(n));
                   1216:   }
                   1217:   if ( vl )
                   1218:     NEXT(tvl) = 0;
                   1219:   dtop(CO,vl,(DP)ARG0(arg),rp);
                   1220: }
                   1221:
                   1222: extern LIST Dist;
                   1223:
                   1224: void Pdp_ptozp(NODE arg,Obj *rp)
                   1225: {
                   1226:   Z t;
                   1227:   NODE tt,p;
                   1228:   NODE n,n0;
                   1229:   char *key;
                   1230:   DP pp;
                   1231:   LIST list;
                   1232:   int get_factor=0;
                   1233:
                   1234:   asir_assert(ARG0(arg),O_DP,"dp_ptozp");
                   1235:
                   1236:     /* analyze the option */
                   1237:     if ( current_option ) {
                   1238:       for ( tt = current_option; tt; tt = NEXT(tt) ) {
                   1239:         p = BDY((LIST)BDY(tt));
                   1240:         key = BDY((STRING)BDY(p));
                   1241:         /*  value = (Obj)BDY(NEXT(p)); */
                   1242:         if ( !strcmp(key,"factor") )  get_factor=1;
                   1243:         else {
                   1244:           error("ptozp: unknown option.");
                   1245:         }
                   1246:       }
                   1247:     }
                   1248:
                   1249:   dp_ptozp3((DP)ARG0(arg),&t,&pp);
                   1250:
                   1251:     /* printexpr(NULL,t); */
                   1252:   /* if the option factor is given, then it returns the answer
                   1253:        in the format [zpoly, num] where num*zpoly is equal to the argument.*/
                   1254:     if (get_factor) {
                   1255:     n0 = mknode(2,pp,t);
                   1256:       MKLIST(list,n0);
                   1257:     *rp = (Obj)list;
                   1258:     } else
                   1259:       *rp = (Obj)pp;
                   1260: }
                   1261:
                   1262: void Pdp_ptozp2(NODE arg,LIST *rp)
                   1263: {
                   1264:   DP p0,p1,h,r;
                   1265:   NODE n0;
                   1266:
                   1267:   p0 = (DP)ARG0(arg); p1 = (DP)ARG1(arg);
                   1268:   asir_assert(p0,O_DP,"dp_ptozp2");
                   1269:   asir_assert(p1,O_DP,"dp_ptozp2");
                   1270:   dp_ptozp2(p0,p1,&h,&r);
                   1271:   NEWNODE(n0); BDY(n0) = (pointer)h;
                   1272:   NEWNODE(NEXT(n0)); BDY(NEXT(n0)) = (pointer)r;
                   1273:   NEXT(NEXT(n0)) = 0;
                   1274:   MKLIST(*rp,n0);
                   1275: }
                   1276:
                   1277: void Pdp_prim(NODE arg,DP *rp)
                   1278: {
                   1279:   DP t;
                   1280:
                   1281:   asir_assert(ARG0(arg),O_DP,"dp_prim");
                   1282:   dp_prim((DP)ARG0(arg),&t); dp_ptozp(t,rp);
                   1283: }
                   1284:
                   1285: void Pdp_mod(NODE arg,DP *rp)
                   1286: {
                   1287:   DP p;
                   1288:   int mod;
                   1289:   NODE subst;
                   1290:
                   1291:   asir_assert(ARG0(arg),O_DP,"dp_mod");
                   1292:   asir_assert(ARG1(arg),O_N,"dp_mod");
                   1293:   asir_assert(ARG2(arg),O_LIST,"dp_mod");
1.2       noro     1294:   p = (DP)ARG0(arg); mod = ZTOS((Q)ARG1(arg));
1.1       noro     1295:   subst = BDY((LIST)ARG2(arg));
                   1296:   dp_mod(p,mod,subst,rp);
                   1297: }
                   1298:
1.26    ! noro     1299: void dpm_mod(DPM,int,DPM *);
        !          1300:
        !          1301: void Pdpm_mod(NODE arg,DPM *rp)
        !          1302: {
        !          1303:   DPM p;
        !          1304:   int mod;
        !          1305:   NODE subst;
        !          1306:
        !          1307:   asir_assert(ARG0(arg),O_DP,"dp_mod");
        !          1308:   asir_assert(ARG1(arg),O_N,"dp_mod");
        !          1309:   p = (DPM)ARG0(arg); mod = ZTOS((Q)ARG1(arg));
        !          1310:   dpm_mod(p,mod,rp);
        !          1311: }
        !          1312:
        !          1313:
1.1       noro     1314: void Pdp_rat(NODE arg,DP *rp)
                   1315: {
                   1316:   asir_assert(ARG0(arg),O_DP,"dp_rat");
                   1317:   dp_rat((DP)ARG0(arg),rp);
                   1318: }
                   1319:
                   1320: extern int DP_Multiple;
                   1321:
                   1322: void Pdp_nf(NODE arg,DP *rp)
                   1323: {
                   1324:   NODE b;
                   1325:   DP *ps;
                   1326:   DP g;
                   1327:   int full;
                   1328:
                   1329:   do_weyl = 0; dp_fcoeffs = 0;
                   1330:   asir_assert(ARG0(arg),O_LIST,"dp_nf");
                   1331:   asir_assert(ARG1(arg),O_DP,"dp_nf");
                   1332:   asir_assert(ARG2(arg),O_VECT,"dp_nf");
                   1333:   asir_assert(ARG3(arg),O_N,"dp_nf");
                   1334:   if ( !(g = (DP)ARG1(arg)) ) {
                   1335:     *rp = 0; return;
                   1336:   }
                   1337:   b = BDY((LIST)ARG0(arg)); ps = (DP *)BDY((VECT)ARG2(arg));
                   1338:   full = (Q)ARG3(arg) ? 1 : 0;
                   1339:   dp_nf_z(b,g,ps,full,DP_Multiple,rp);
                   1340: }
                   1341:
                   1342: void Pdp_weyl_nf(NODE arg,DP *rp)
                   1343: {
                   1344:   NODE b;
                   1345:   DP *ps;
                   1346:   DP g;
                   1347:   int full;
                   1348:
                   1349:   asir_assert(ARG0(arg),O_LIST,"dp_weyl_nf");
                   1350:   asir_assert(ARG1(arg),O_DP,"dp_weyl_nf");
                   1351:   asir_assert(ARG2(arg),O_VECT,"dp_weyl_nf");
                   1352:   asir_assert(ARG3(arg),O_N,"dp_weyl_nf");
                   1353:   if ( !(g = (DP)ARG1(arg)) ) {
                   1354:     *rp = 0; return;
                   1355:   }
                   1356:   b = BDY((LIST)ARG0(arg)); ps = (DP *)BDY((VECT)ARG2(arg));
                   1357:   full = (Q)ARG3(arg) ? 1 : 0;
                   1358:   do_weyl = 1;
                   1359:   dp_nf_z(b,g,ps,full,DP_Multiple,rp);
                   1360:   do_weyl = 0;
                   1361: }
                   1362:
                   1363: void Pdpm_nf(NODE arg,DPM *rp)
                   1364: {
                   1365:   NODE b;
1.11      noro     1366:   VECT ps;
1.1       noro     1367:   DPM g;
1.11      noro     1368:   int ac,full;
1.1       noro     1369:
                   1370:   if ( !(g = (DPM)ARG1(arg)) ) {
                   1371:     *rp = 0; return;
                   1372:   }
                   1373:   do_weyl = 0; dp_fcoeffs = 0;
1.11      noro     1374:   ac = argc(arg);
                   1375:   if ( ac < 3 )
                   1376:     error("dpm_nf: invalid arguments");
                   1377:   else if ( ac == 3 ) {
                   1378:     asir_assert(ARG1(arg),O_VECT,"dpm_nf");
                   1379:     b = 0; g = (DPM)ARG0(arg); ps = (VECT)ARG1(arg);
                   1380:   } else if ( ac == 4 ) {
                   1381:     asir_assert(ARG0(arg),O_LIST,"dpm_nf");
                   1382:     asir_assert(ARG2(arg),O_VECT,"dpm_nf");
                   1383:     b = BDY((LIST)ARG0(arg)); g = (DPM)ARG1(arg); ps = (VECT)ARG2(arg);
                   1384:     full = (Q)ARG3(arg) ? 1 : 0;
                   1385:   }
1.1       noro     1386:   dpm_nf_z(b,g,ps,full,DP_Multiple,rp);
                   1387: }
                   1388:
1.9       noro     1389: DP *dpm_nf_and_quotient(NODE b,DPM g,VECT ps,DPM *rp,P *dnp);
1.17      noro     1390: DPM dpm_nf_and_quotient2(NODE b,DPM g,VECT ps,DPM *rp,P *dnp);
1.9       noro     1391:
                   1392: void Pdpm_nf_and_quotient(NODE arg,LIST *rp)
                   1393: {
                   1394:   NODE b;
                   1395:   VECT ps;
                   1396:   DPM g,nm;
                   1397:   P dn;
                   1398:   VECT quo;
                   1399:   NODE n;
                   1400:   int ac;
                   1401:
                   1402:   do_weyl = 0; dp_fcoeffs = 0;
                   1403:   ac = argc(arg);
                   1404:   if ( ac < 2 )
                   1405:     error("dpm_nf_and_quotient : invalid arguments");
                   1406:   else if ( ac == 2 ) {
1.11      noro     1407:     asir_assert(ARG1(arg),O_VECT,"dpm_nf_and_quotient");
1.9       noro     1408:     b = 0; g = (DPM)ARG0(arg); ps = (VECT)ARG1(arg);
                   1409:   } else if ( ac == 3 ) {
1.11      noro     1410:     asir_assert(ARG0(arg),O_LIST,"dpm_nf_and_quotient");
                   1411:     asir_assert(ARG2(arg),O_VECT,"dpm_nf_and_quotient");
1.9       noro     1412:     b = BDY((LIST)ARG0(arg)); g = (DPM)ARG1(arg); ps = (VECT)ARG2(arg);
                   1413:   }
1.10      noro     1414:   NEWVECT(quo); quo->len = ps->len;
                   1415:   if ( g ) {
                   1416:     quo->body = (pointer *)dpm_nf_and_quotient(b,g,ps,&nm,&dn);
                   1417:   } else {
                   1418:     quo->body = (pointer *)MALLOC(quo->len*sizeof(pointer));
                   1419:     nm = 0; dn = (P)ONE;
1.9       noro     1420:   }
                   1421:   n = mknode(3,nm,dn,quo);
                   1422:   MKLIST(*rp,n);
                   1423: }
                   1424:
1.17      noro     1425: void Pdpm_nf_and_quotient2(NODE arg,LIST *rp)
                   1426: {
                   1427:   NODE b;
                   1428:   VECT ps;
                   1429:   DPM g,nm,q;
                   1430:   P dn;
                   1431:   NODE n;
                   1432:   int ac;
                   1433:
                   1434:   do_weyl = 0; dp_fcoeffs = 0;
                   1435:   ac = argc(arg);
                   1436:   if ( ac < 2 )
                   1437:     error("dpm_nf_and_quotient2 : invalid arguments");
                   1438:   else if ( ac == 2 ) {
                   1439:     asir_assert(ARG1(arg),O_VECT,"dpm_nf_and_quotient2");
                   1440:     b = 0; g = (DPM)ARG0(arg); ps = (VECT)ARG1(arg);
                   1441:   } else if ( ac == 3 ) {
                   1442:     asir_assert(ARG0(arg),O_LIST,"dpm_nf_and_quotient2");
                   1443:     asir_assert(ARG2(arg),O_VECT,"dpm_nf_and_quotient2");
                   1444:     b = BDY((LIST)ARG0(arg)); g = (DPM)ARG1(arg); ps = (VECT)ARG2(arg);
                   1445:   }
                   1446:   if ( g ) {
                   1447:     q = dpm_nf_and_quotient2(b,g,ps,&nm,&dn);
                   1448:   } else {
                   1449:     q = 0; nm = 0; dn = (P)ONE;
                   1450:   }
                   1451:   n = mknode(3,nm,dn,q);
                   1452:   MKLIST(*rp,n);
                   1453: }
                   1454:
1.1       noro     1455: void Pdpm_weyl_nf(NODE arg,DPM *rp)
                   1456: {
                   1457:   NODE b;
1.11      noro     1458:   VECT ps;
1.1       noro     1459:   DPM g;
1.11      noro     1460:   int ac,full;
1.1       noro     1461:
                   1462:   if ( !(g = (DPM)ARG1(arg)) ) {
                   1463:     *rp = 0; return;
                   1464:   }
1.11      noro     1465:   do_weyl = 1; dp_fcoeffs = 0;
                   1466:   ac = argc(arg);
                   1467:   if ( ac < 3 )
                   1468:     error("dpm_weyl_nf: invalid arguments");
                   1469:   else if ( ac == 3 ) {
                   1470:     asir_assert(ARG1(arg),O_VECT,"dpm_nf");
                   1471:     b = 0; g = (DPM)ARG0(arg); ps = (VECT)ARG1(arg);
                   1472:   } else if ( ac == 4 ) {
                   1473:     asir_assert(ARG0(arg),O_LIST,"dpm_weyl_nf");
                   1474:     asir_assert(ARG2(arg),O_VECT,"dpm_weyl_nf");
                   1475:     b = BDY((LIST)ARG0(arg)); g = (DPM)ARG1(arg); ps = (VECT)ARG2(arg);
                   1476:     full = (Q)ARG3(arg) ? 1 : 0;
                   1477:   }
1.1       noro     1478:   dpm_nf_z(b,g,ps,full,DP_Multiple,rp);
                   1479:   do_weyl = 0;
                   1480: }
                   1481:
                   1482: /* nf computation using field operations */
                   1483:
                   1484: void Pdp_nf_f(NODE arg,DP *rp)
                   1485: {
                   1486:   NODE b;
                   1487:   DP *ps;
                   1488:   DP g;
                   1489:   int full;
                   1490:
                   1491:   do_weyl = 0;
                   1492:   asir_assert(ARG0(arg),O_LIST,"dp_nf_f");
                   1493:   asir_assert(ARG1(arg),O_DP,"dp_nf_f");
                   1494:   asir_assert(ARG2(arg),O_VECT,"dp_nf_f");
                   1495:   asir_assert(ARG3(arg),O_N,"dp_nf_f");
                   1496:   if ( !(g = (DP)ARG1(arg)) ) {
                   1497:     *rp = 0; return;
                   1498:   }
                   1499:   b = BDY((LIST)ARG0(arg)); ps = (DP *)BDY((VECT)ARG2(arg));
                   1500:   full = (Q)ARG3(arg) ? 1 : 0;
                   1501:   dp_nf_f(b,g,ps,full,rp);
                   1502: }
                   1503:
                   1504: void Pdp_weyl_nf_f(NODE arg,DP *rp)
                   1505: {
                   1506:   NODE b;
                   1507:   DP *ps;
                   1508:   DP g;
                   1509:   int full;
                   1510:
                   1511:   asir_assert(ARG0(arg),O_LIST,"dp_weyl_nf_f");
                   1512:   asir_assert(ARG1(arg),O_DP,"dp_weyl_nf_f");
                   1513:   asir_assert(ARG2(arg),O_VECT,"dp_weyl_nf_f");
                   1514:   asir_assert(ARG3(arg),O_N,"dp_weyl_nf_f");
                   1515:   if ( !(g = (DP)ARG1(arg)) ) {
                   1516:     *rp = 0; return;
                   1517:   }
                   1518:   b = BDY((LIST)ARG0(arg)); ps = (DP *)BDY((VECT)ARG2(arg));
                   1519:   full = (Q)ARG3(arg) ? 1 : 0;
                   1520:   do_weyl = 1;
                   1521:   dp_nf_f(b,g,ps,full,rp);
                   1522:   do_weyl = 0;
                   1523: }
                   1524:
                   1525: void Pdpm_nf_f(NODE arg,DPM *rp)
                   1526: {
                   1527:   NODE b;
1.11      noro     1528:   VECT ps;
1.1       noro     1529:   DPM g;
1.11      noro     1530:   int ac,full;
1.1       noro     1531:
                   1532:   if ( !(g = (DPM)ARG1(arg)) ) {
                   1533:     *rp = 0; return;
                   1534:   }
1.11      noro     1535:   ac = argc(arg);
                   1536:   if ( ac < 3 )
                   1537:     error("dpm_nf_f: invalid arguments");
                   1538:   else if ( ac == 3 ) {
                   1539:     asir_assert(ARG1(arg),O_VECT,"dpm_nf_f");
                   1540:     b = 0; g = (DPM)ARG0(arg); ps = (VECT)ARG1(arg);
                   1541:   } else if ( ac == 4 ) {
                   1542:     asir_assert(ARG0(arg),O_LIST,"dpm_nf_f");
                   1543:     asir_assert(ARG2(arg),O_VECT,"dpm_nf_f");
                   1544:     b = BDY((LIST)ARG0(arg)); g = (DPM)ARG1(arg); ps = (VECT)ARG2(arg);
                   1545:     full = (Q)ARG3(arg) ? 1 : 0;
                   1546:   }
                   1547:   do_weyl = 0;
1.1       noro     1548:   dpm_nf_f(b,g,ps,full,rp);
                   1549: }
                   1550:
                   1551: void Pdpm_weyl_nf_f(NODE arg,DPM *rp)
                   1552: {
                   1553:   NODE b;
1.11      noro     1554:   VECT ps;
1.1       noro     1555:   DPM g;
1.11      noro     1556:   int ac,full;
1.1       noro     1557:
                   1558:   if ( !(g = (DPM)ARG1(arg)) ) {
                   1559:     *rp = 0; return;
                   1560:   }
1.11      noro     1561:   ac = argc(arg);
                   1562:   if ( ac < 3 )
                   1563:     error("dpm_weyl_nf_f: invalid arguments");
                   1564:   else if ( ac == 3 ) {
                   1565:     asir_assert(ARG1(arg),O_VECT,"dpm_weyl_nf_f");
                   1566:     b = 0; g = (DPM)ARG0(arg); ps = (VECT)ARG1(arg);
                   1567:   } else if ( ac == 4 ) {
                   1568:     asir_assert(ARG0(arg),O_LIST,"dpm_weyl_nf_f");
                   1569:     asir_assert(ARG2(arg),O_VECT,"dpm_weyl_nf_f");
                   1570:     b = BDY((LIST)ARG0(arg)); g = (DPM)ARG1(arg); ps = (VECT)ARG2(arg);
                   1571:     full = (Q)ARG3(arg) ? 1 : 0;
                   1572:   }
1.1       noro     1573:   do_weyl = 1;
                   1574:   dpm_nf_f(b,g,ps,full,rp);
                   1575:   do_weyl = 0;
                   1576: }
                   1577:
                   1578:
                   1579: void Pdp_nf_mod(NODE arg,DP *rp)
                   1580: {
                   1581:   NODE b;
                   1582:   DP g;
                   1583:   DP *ps;
                   1584:   int mod,full,ac;
                   1585:   NODE n,n0;
                   1586:
                   1587:   do_weyl = 0;
                   1588:   ac = argc(arg);
                   1589:   asir_assert(ARG0(arg),O_LIST,"dp_nf_mod");
                   1590:   asir_assert(ARG1(arg),O_DP,"dp_nf_mod");
                   1591:   asir_assert(ARG2(arg),O_VECT,"dp_nf_mod");
                   1592:   asir_assert(ARG3(arg),O_N,"dp_nf_mod");
                   1593:   asir_assert(ARG4(arg),O_N,"dp_nf_mod");
                   1594:   if ( !(g = (DP)ARG1(arg)) ) {
                   1595:     *rp = 0; return;
                   1596:   }
                   1597:   b = BDY((LIST)ARG0(arg)); ps = (DP *)BDY((VECT)ARG2(arg));
1.2       noro     1598:   full = ZTOS((Q)ARG3(arg)); mod = ZTOS((Q)ARG4(arg));
1.1       noro     1599:   for ( n0 = n = 0; b; b = NEXT(b) ) {
                   1600:     NEXTNODE(n0,n);
1.2       noro     1601:     BDY(n) = (pointer)ZTOS((Q)BDY(b));
1.1       noro     1602:   }
                   1603:   if ( n0 )
                   1604:     NEXT(n) = 0;
                   1605:   dp_nf_mod(n0,g,ps,mod,full,rp);
                   1606: }
                   1607:
                   1608: void Pdp_true_nf(NODE arg,LIST *rp)
                   1609: {
                   1610:   NODE b,n;
                   1611:   DP *ps;
                   1612:   DP g;
                   1613:   DP nm;
                   1614:   P dn;
                   1615:   int full;
                   1616:
                   1617:   do_weyl = 0; dp_fcoeffs = 0;
                   1618:   asir_assert(ARG0(arg),O_LIST,"dp_true_nf");
                   1619:   asir_assert(ARG1(arg),O_DP,"dp_true_nf");
                   1620:   asir_assert(ARG2(arg),O_VECT,"dp_true_nf");
                   1621:   asir_assert(ARG3(arg),O_N,"dp_nf");
                   1622:   if ( !(g = (DP)ARG1(arg)) ) {
                   1623:     nm = 0; dn = (P)ONE;
                   1624:   } else {
                   1625:     b = BDY((LIST)ARG0(arg)); ps = (DP *)BDY((VECT)ARG2(arg));
                   1626:     full = (Q)ARG3(arg) ? 1 : 0;
                   1627:     dp_true_nf(b,g,ps,full,&nm,&dn);
                   1628:   }
                   1629:   NEWNODE(n); BDY(n) = (pointer)nm;
                   1630:   NEWNODE(NEXT(n)); BDY(NEXT(n)) = (pointer)dn;
                   1631:   NEXT(NEXT(n)) = 0; MKLIST(*rp,n);
                   1632: }
                   1633:
                   1634: DP *dp_true_nf_and_quotient_marked(NODE b,DP g,DP *ps,DP *hps,DP *rp,P *dnp);
                   1635:
                   1636: void Pdp_true_nf_and_quotient_marked(NODE arg,LIST *rp)
                   1637: {
                   1638:   NODE b,n;
                   1639:   DP *ps,*hps;
                   1640:   DP g;
                   1641:   DP nm;
                   1642:   VECT quo;
                   1643:   P dn;
                   1644:   int full;
                   1645:
                   1646:   do_weyl = 0; dp_fcoeffs = 0;
                   1647:   asir_assert(ARG0(arg),O_LIST,"dp_true_nf_and_quotient_marked");
                   1648:   asir_assert(ARG1(arg),O_DP,"dp_true_nf_and_quotient_marked");
                   1649:   asir_assert(ARG2(arg),O_VECT,"dp_true_nf_and_quotient_marked");
                   1650:   asir_assert(ARG3(arg),O_VECT,"dp_true_nf_and_quotient_marked");
                   1651:   if ( !(g = (DP)ARG1(arg)) ) {
                   1652:     nm = 0; dn = (P)ONE;
                   1653:   } else {
                   1654:     b = BDY((LIST)ARG0(arg));
                   1655:     ps = (DP *)BDY((VECT)ARG2(arg));
                   1656:     hps = (DP *)BDY((VECT)ARG3(arg));
                   1657:     NEWVECT(quo); quo->len = ((VECT)ARG2(arg))->len;
                   1658:     quo->body = (pointer *)dp_true_nf_and_quotient_marked(b,g,ps,hps,&nm,&dn);
                   1659:   }
                   1660:   n = mknode(3,nm,dn,quo);
                   1661:   MKLIST(*rp,n);
                   1662: }
                   1663:
                   1664: void Pdp_true_nf_and_quotient(NODE arg,LIST *rp)
                   1665: {
                   1666:   NODE narg = mknode(4,ARG0(arg),ARG1(arg),ARG2(arg),ARG2(arg));
                   1667:   Pdp_true_nf_and_quotient_marked(narg,rp);
                   1668: }
                   1669:
                   1670:
                   1671: DP *dp_true_nf_and_quotient_marked_mod (NODE b,DP g,DP *ps,DP *hps,int mod,DP *rp,P *dnp);
                   1672:
                   1673: void Pdp_true_nf_and_quotient_marked_mod(NODE arg,LIST *rp)
                   1674: {
                   1675:   NODE b,n;
                   1676:   DP *ps,*hps;
                   1677:   DP g;
                   1678:   DP nm;
                   1679:   VECT quo;
                   1680:   P dn;
                   1681:   int full,mod;
                   1682:
                   1683:   do_weyl = 0; dp_fcoeffs = 0;
                   1684:   asir_assert(ARG0(arg),O_LIST,"dp_true_nf_and_quotient_marked_mod");
                   1685:   asir_assert(ARG1(arg),O_DP,"dp_true_nf_and_quotient_marked_mod");
                   1686:   asir_assert(ARG2(arg),O_VECT,"dp_true_nf_and_quotient_marked_mod");
                   1687:   asir_assert(ARG3(arg),O_VECT,"dp_true_nf_and_quotient_marked_mod");
                   1688:   asir_assert(ARG4(arg),O_N,"dp_true_nf_and_quotient_marked_mod");
                   1689:   if ( !(g = (DP)ARG1(arg)) ) {
                   1690:     nm = 0; dn = (P)ONE;
                   1691:   } else {
                   1692:     b = BDY((LIST)ARG0(arg));
                   1693:     ps = (DP *)BDY((VECT)ARG2(arg));
                   1694:     hps = (DP *)BDY((VECT)ARG3(arg));
1.2       noro     1695:     mod = ZTOS((Q)ARG4(arg));
1.1       noro     1696:     NEWVECT(quo); quo->len = ((VECT)ARG2(arg))->len;
                   1697:     quo->body = (pointer *)dp_true_nf_and_quotient_marked_mod(b,g,ps,hps,mod,&nm,&dn);
                   1698:   }
                   1699:   n = mknode(3,nm,dn,quo);
                   1700:   MKLIST(*rp,n);
                   1701: }
                   1702:
                   1703: void Pdp_true_nf_and_quotient_mod(NODE arg,LIST *rp)
                   1704: {
                   1705:   NODE narg = mknode(5,ARG0(arg),ARG1(arg),ARG2(arg),ARG2(arg),ARG3(arg));
                   1706:   Pdp_true_nf_and_quotient_marked_mod(narg,rp);
                   1707: }
                   1708:
                   1709: void Pdp_true_nf_marked(NODE arg,LIST *rp)
                   1710: {
                   1711:   NODE b,n;
                   1712:   DP *ps,*hps;
                   1713:   DP g;
                   1714:   DP nm;
                   1715:   Q cont;
                   1716:   P dn;
                   1717:   int full;
                   1718:
                   1719:   do_weyl = 0; dp_fcoeffs = 0;
                   1720:   asir_assert(ARG0(arg),O_LIST,"dp_true_nf_marked");
                   1721:   asir_assert(ARG1(arg),O_DP,"dp_true_nf_marked");
                   1722:   asir_assert(ARG2(arg),O_VECT,"dp_true_nf_marked");
                   1723:   asir_assert(ARG3(arg),O_VECT,"dp_true_nf_marked");
                   1724:   if ( !(g = (DP)ARG1(arg)) ) {
                   1725:     nm = 0; dn = (P)ONE;
                   1726:   } else {
                   1727:     b = BDY((LIST)ARG0(arg));
                   1728:     ps = (DP *)BDY((VECT)ARG2(arg));
                   1729:     hps = (DP *)BDY((VECT)ARG3(arg));
                   1730:     dp_true_nf_marked(b,g,ps,hps,&nm,(P *)&cont,(P *)&dn);
                   1731:   }
                   1732:   n = mknode(3,nm,cont,dn);
                   1733:   MKLIST(*rp,n);
                   1734: }
                   1735:
                   1736: void Pdp_true_nf_marked_mod(NODE arg,LIST *rp)
                   1737: {
                   1738:   NODE b,n;
                   1739:   DP *ps,*hps;
                   1740:   DP g;
                   1741:   DP nm;
                   1742:   P dn;
                   1743:   int mod;
                   1744:
                   1745:   do_weyl = 0; dp_fcoeffs = 0;
                   1746:   asir_assert(ARG0(arg),O_LIST,"dp_true_nf_marked_mod");
                   1747:   asir_assert(ARG1(arg),O_DP,"dp_true_nf_marked_mod");
                   1748:   asir_assert(ARG2(arg),O_VECT,"dp_true_nf_marked_mod");
                   1749:   asir_assert(ARG3(arg),O_VECT,"dp_true_nf_marked_mod");
                   1750:   asir_assert(ARG4(arg),O_N,"dp_true_nf_marked_mod");
                   1751:   if ( !(g = (DP)ARG1(arg)) ) {
                   1752:     nm = 0; dn = (P)ONE;
                   1753:   } else {
                   1754:     b = BDY((LIST)ARG0(arg));
                   1755:     ps = (DP *)BDY((VECT)ARG2(arg));
                   1756:     hps = (DP *)BDY((VECT)ARG3(arg));
1.2       noro     1757:     mod = ZTOS((Q)ARG4(arg));
1.1       noro     1758:     dp_true_nf_marked_mod(b,g,ps,hps,mod,&nm,&dn);
                   1759:   }
                   1760:   n = mknode(2,nm,dn);
                   1761:   MKLIST(*rp,n);
                   1762: }
                   1763:
                   1764: void Pdp_weyl_nf_mod(NODE arg,DP *rp)
                   1765: {
                   1766:   NODE b;
                   1767:   DP g;
                   1768:   DP *ps;
                   1769:   int mod,full,ac;
                   1770:   NODE n,n0;
                   1771:
                   1772:   ac = argc(arg);
                   1773:   asir_assert(ARG0(arg),O_LIST,"dp_weyl_nf_mod");
                   1774:   asir_assert(ARG1(arg),O_DP,"dp_weyl_nf_mod");
                   1775:   asir_assert(ARG2(arg),O_VECT,"dp_weyl_nf_mod");
                   1776:   asir_assert(ARG3(arg),O_N,"dp_weyl_nf_mod");
                   1777:   asir_assert(ARG4(arg),O_N,"dp_weyl_nf_mod");
                   1778:   if ( !(g = (DP)ARG1(arg)) ) {
                   1779:     *rp = 0; return;
                   1780:   }
                   1781:   b = BDY((LIST)ARG0(arg)); ps = (DP *)BDY((VECT)ARG2(arg));
1.2       noro     1782:   full = ZTOS((Q)ARG3(arg)); mod = ZTOS((Q)ARG4(arg));
1.1       noro     1783:   for ( n0 = n = 0; b; b = NEXT(b) ) {
                   1784:     NEXTNODE(n0,n);
1.2       noro     1785:     BDY(n) = (pointer)ZTOS((Q)BDY(b));
1.1       noro     1786:   }
                   1787:   if ( n0 )
                   1788:     NEXT(n) = 0;
                   1789:   do_weyl = 1;
                   1790:   dp_nf_mod(n0,g,ps,mod,full,rp);
                   1791:   do_weyl = 0;
                   1792: }
                   1793:
                   1794: void Pdp_true_nf_mod(NODE arg,LIST *rp)
                   1795: {
                   1796:   NODE b;
                   1797:   DP g,nm;
                   1798:   P dn;
                   1799:   DP *ps;
                   1800:   int mod,full;
                   1801:   NODE n;
                   1802:
                   1803:   do_weyl = 0;
                   1804:   asir_assert(ARG0(arg),O_LIST,"dp_nf_mod");
                   1805:   asir_assert(ARG1(arg),O_DP,"dp_nf_mod");
                   1806:   asir_assert(ARG2(arg),O_VECT,"dp_nf_mod");
                   1807:   asir_assert(ARG3(arg),O_N,"dp_nf_mod");
                   1808:   asir_assert(ARG4(arg),O_N,"dp_nf_mod");
                   1809:   if ( !(g = (DP)ARG1(arg)) ) {
                   1810:     nm = 0; dn = (P)ONEM;
                   1811:   } else {
                   1812:     b = BDY((LIST)ARG0(arg)); ps = (DP *)BDY((VECT)ARG2(arg));
1.2       noro     1813:     full = ZTOS((Q)ARG3(arg)); mod = ZTOS((Q)ARG4(arg));
1.1       noro     1814:     dp_true_nf_mod(b,g,ps,mod,full,&nm,&dn);
                   1815:   }
                   1816:   NEWNODE(n); BDY(n) = (pointer)nm;
                   1817:   NEWNODE(NEXT(n)); BDY(NEXT(n)) = (pointer)dn;
                   1818:   NEXT(NEXT(n)) = 0; MKLIST(*rp,n);
                   1819: }
                   1820:
                   1821: void Pdp_weyl_true_nf_and_quotient_marked(NODE arg,LIST *rp)
                   1822: {
                   1823:   NODE b,n;
                   1824:   DP *ps,*hps;
                   1825:   DP g;
                   1826:   DP nm;
                   1827:   VECT quo;
                   1828:   P dn;
                   1829:   int full;
                   1830:
                   1831:   do_weyl = 1; dp_fcoeffs = 0;
                   1832:   asir_assert(ARG0(arg),O_LIST,"dp_weyl_true_nf_and_quotient_marked");
                   1833:   asir_assert(ARG1(arg),O_DP,"dp_weyl_true_nf_and_quotient_marked");
                   1834:   asir_assert(ARG2(arg),O_VECT,"dp_weyl_true_nf_and_quotient_marked");
                   1835:   asir_assert(ARG3(arg),O_VECT,"dp_weyl_true_nf_and_quotient_marked");
                   1836:   if ( !(g = (DP)ARG1(arg)) ) {
                   1837:     nm = 0; dn = (P)ONE;
                   1838:   } else {
                   1839:     b = BDY((LIST)ARG0(arg));
                   1840:     ps = (DP *)BDY((VECT)ARG2(arg));
                   1841:     hps = (DP *)BDY((VECT)ARG3(arg));
                   1842:     NEWVECT(quo); quo->len = ((VECT)ARG2(arg))->len;
                   1843:     quo->body = (pointer *)dp_true_nf_and_quotient_marked(b,g,ps,hps,&nm,&dn);
                   1844:   }
                   1845:   n = mknode(3,nm,dn,quo);
                   1846:   MKLIST(*rp,n);
                   1847: }
                   1848:
                   1849: void Pdp_weyl_true_nf_and_quotient(NODE arg,LIST *rp)
                   1850: {
                   1851:   NODE narg = mknode(4,ARG0(arg),ARG1(arg),ARG2(arg),ARG2(arg));
                   1852:   Pdp_weyl_true_nf_and_quotient_marked(narg,rp);
                   1853: }
                   1854:
                   1855:
                   1856: void Pdp_weyl_true_nf_and_quotient_marked_mod(NODE arg,LIST *rp)
                   1857: {
                   1858:   NODE b,n;
                   1859:   DP *ps,*hps;
                   1860:   DP g;
                   1861:   DP nm;
                   1862:   VECT quo;
                   1863:   P dn;
                   1864:   int full,mod;
                   1865:
                   1866:   do_weyl = 1; dp_fcoeffs = 0;
                   1867:   asir_assert(ARG0(arg),O_LIST,"dp_weyl_true_nf_and_quotient_marked_mod");
                   1868:   asir_assert(ARG1(arg),O_DP,"dp_weyl_true_nf_and_quotient_marked_mod");
                   1869:   asir_assert(ARG2(arg),O_VECT,"dp_weyl_true_nf_and_quotient_marked_mod");
                   1870:   asir_assert(ARG3(arg),O_VECT,"dp_weyl_true_nf_and_quotient_marked_mod");
                   1871:   asir_assert(ARG4(arg),O_N,"dp_weyl_true_nf_and_quotient_marked_mod");
                   1872:   if ( !(g = (DP)ARG1(arg)) ) {
                   1873:     nm = 0; dn = (P)ONE;
                   1874:   } else {
                   1875:     b = BDY((LIST)ARG0(arg));
                   1876:     ps = (DP *)BDY((VECT)ARG2(arg));
                   1877:     hps = (DP *)BDY((VECT)ARG3(arg));
1.2       noro     1878:     mod = ZTOS((Q)ARG4(arg));
1.1       noro     1879:     NEWVECT(quo); quo->len = ((VECT)ARG2(arg))->len;
                   1880:     quo->body = (pointer *)dp_true_nf_and_quotient_marked_mod(b,g,ps,hps,mod,&nm,&dn);
                   1881:   }
                   1882:   n = mknode(3,nm,dn,quo);
                   1883:   MKLIST(*rp,n);
                   1884: }
                   1885:
                   1886: void Pdp_weyl_true_nf_and_quotient_mod(NODE arg,LIST *rp)
                   1887: {
                   1888:   NODE narg = mknode(5,ARG0(arg),ARG1(arg),ARG2(arg),ARG2(arg),ARG3(arg));
                   1889:   Pdp_weyl_true_nf_and_quotient_marked_mod(narg,rp);
                   1890: }
                   1891:
                   1892:
                   1893: void Pdp_tdiv(NODE arg,DP *rp)
                   1894: {
                   1895:   MP m,mr,mr0;
                   1896:   DP p;
                   1897:   Z d,q,r;
                   1898:   int sgn;
                   1899:
                   1900:   asir_assert(ARG0(arg),O_DP,"dp_tdiv");
                   1901:   asir_assert(ARG1(arg),O_N,"dp_tdiv");
                   1902:   p = (DP)ARG0(arg); d = (Z)ARG1(arg);
                   1903:   if ( !p )
                   1904:     *rp = 0;
                   1905:   else {
                   1906:     for ( mr0 = 0, m = BDY(p); m; m = NEXT(m) ) {
                   1907:       divqrz((Z)m->c,d,&q,&r);
                   1908:       if ( r ) {
                   1909:         *rp = 0; return;
                   1910:       } else {
                   1911:         NEXTMP(mr0,mr);
                   1912:         mr->c = (Obj)q; mr->dl = m->dl;
                   1913:       }
                   1914:     }
                   1915:     NEXT(mr) = 0; MKDP(p->nv,mr0,*rp); (*rp)->sugar = p->sugar;
                   1916:   }
                   1917: }
                   1918:
                   1919: void Pdp_red_coef(NODE arg,DP *rp)
                   1920: {
                   1921:   MP m,mr,mr0;
                   1922:   P q,r;
                   1923:   DP p;
                   1924:   P mod;
                   1925:
                   1926:   p = (DP)ARG0(arg); mod = (P)ARG1(arg);
                   1927:   asir_assert(p,O_DP,"dp_red_coef");
                   1928:   asir_assert(mod,O_P,"dp_red_coef");
                   1929:   if ( !p )
                   1930:     *rp = 0;
                   1931:   else {
                   1932:     for ( mr0 = 0, m = BDY(p); m; m = NEXT(m) ) {
                   1933:       divsrp(CO,(P)m->c,mod,&q,&r);
                   1934:       if ( r ) {
                   1935:         NEXTMP(mr0,mr); mr->c = (Obj)r; mr->dl = m->dl;
                   1936:       }
                   1937:     }
                   1938:     if ( mr0 ) {
                   1939:       NEXT(mr) = 0; MKDP(p->nv,mr0,*rp); (*rp)->sugar = p->sugar;
                   1940:     } else
                   1941:       *rp = 0;
                   1942:   }
                   1943: }
                   1944:
                   1945: void Pdp_redble(NODE arg,Z *rp)
                   1946: {
                   1947:   asir_assert(ARG0(arg),O_DP,"dp_redble");
                   1948:   asir_assert(ARG1(arg),O_DP,"dp_redble");
                   1949:   if ( dp_redble((DP)ARG0(arg),(DP)ARG1(arg)) )
                   1950:     *rp = ONE;
                   1951:   else
                   1952:     *rp = 0;
                   1953: }
                   1954:
1.9       noro     1955: void Pdpm_redble(NODE arg,Z *rp)
                   1956: {
                   1957:   asir_assert(ARG0(arg),O_DPM,"dpm_redble");
                   1958:   asir_assert(ARG1(arg),O_DPM,"dpm_redble");
                   1959:   if ( dpm_redble((DPM)ARG0(arg),(DPM)ARG1(arg)) )
                   1960:     *rp = ONE;
                   1961:   else
                   1962:     *rp = 0;
                   1963: }
                   1964:
1.11      noro     1965: void dpm_schreyer_base(LIST g,LIST *s);
1.19      noro     1966: void dpm_schreyer_base_zlist(LIST g,LIST *s);
1.11      noro     1967:
                   1968: void Pdpm_schreyer_base(NODE arg,LIST *rp)
                   1969: {
                   1970:   asir_assert(ARG0(arg),O_LIST,"dpm_schreyer_base");
1.19      noro     1971:   dpm_schreyer_base_zlist((LIST)ARG0(arg),rp);
1.11      noro     1972: }
                   1973:
1.19      noro     1974: void dpm_list_to_array(LIST g,VECT *psv,VECT *psiv);
                   1975:
                   1976: void Pdpm_list_to_array(NODE arg,LIST *rp)
                   1977: {
                   1978:   VECT psv,psiv;
                   1979:   NODE nd;
                   1980:
                   1981:   asir_assert(ARG0(arg),O_LIST,"dpm_list_to_array");
                   1982:   dpm_list_to_array((LIST)ARG0(arg),&psv,&psiv);
                   1983:   nd = mknode(2,psv,psiv);
                   1984:   MKLIST(*rp,nd);
                   1985: }
                   1986:
1.21      noro     1987: /* [quo,nf] = dpm_sp_nf(psv,psiv,i,j,top) */
                   1988: DPM dpm_sp_nf_zlist(VECT psv,VECT psiv,int i,int j,int top,DPM *nf);
1.19      noro     1989:
                   1990: void Pdpm_sp_nf(NODE arg,LIST *rp)
                   1991: {
                   1992:   VECT psv,psiv;
                   1993:   DPM quo,nf;
1.21      noro     1994:   Obj val;
                   1995:   int i,j,top;
1.19      noro     1996:   NODE nd;
                   1997:
                   1998:   asir_assert(ARG0(arg),O_VECT,"dpm_sp_nf"); psv = (VECT)ARG0(arg);
                   1999:   asir_assert(ARG1(arg),O_VECT,"dpm_sp_nf"); psiv = (VECT)ARG1(arg);
                   2000:   asir_assert(ARG2(arg),O_N,"dpm_sp_nf"); i = ZTOS((Q)ARG2(arg));
                   2001:   asir_assert(ARG3(arg),O_N,"dpm_sp_nf"); j = ZTOS((Q)ARG3(arg));
1.21      noro     2002:   if ( get_opt("top",&val) && val )
                   2003:     top = 1;
                   2004:   else
                   2005:     top = 0;
                   2006:   quo = dpm_sp_nf_zlist(psv,psiv,i,j,top,&nf);
1.19      noro     2007:   nd = mknode(2,quo,nf);
                   2008:   MKLIST(*rp,nd);
                   2009: }
                   2010:
                   2011: void dpm_insert_to_zlist(VECT psiv,int pos,int i);
                   2012:
                   2013: /* insert_to_zlist(indarray,dpm_hp(f),i) */
                   2014: void Pdpm_insert_to_zlist(NODE arg,VECT *rp)
                   2015: {
                   2016:   VECT psiv;
                   2017:   int i,pos;
                   2018:
                   2019:   asir_assert(ARG0(arg),O_VECT,"dpm_insert_to_zlist"); psiv = (VECT)ARG0(arg);
                   2020:   asir_assert(ARG1(arg),O_N,"dpm_insert_to_zlist"); pos = ZTOS((Q)ARG1(arg));
                   2021:   asir_assert(ARG2(arg),O_N,"dpm_insert_to_zlist"); i = ZTOS((Q)ARG2(arg));
                   2022:   dpm_insert_to_zlist(psiv,pos,i);
                   2023:   *rp = psiv;
                   2024: }
                   2025:
                   2026:
1.16      noro     2027: void dpm_simplify_syz(LIST m,LIST s,LIST *m1,LIST *s1,LIST *w1);
1.12      noro     2028:
                   2029: void Pdpm_simplify_syz(NODE arg,LIST *rp)
                   2030: {
1.16      noro     2031:   LIST s1,m1,w1;
1.12      noro     2032:   NODE t;
                   2033:
                   2034:   asir_assert(ARG0(arg),O_LIST,"dpm_simplify_syz");
                   2035:   asir_assert(ARG1(arg),O_LIST,"dpm_simplify_syz");
1.16      noro     2036:   dpm_simplify_syz((LIST)ARG0(arg),(LIST)ARG1(arg),&s1,&m1,&w1);
                   2037:   t = mknode(3,s1,m1,w1);
1.12      noro     2038:   MKLIST(*rp,t);
                   2039: }
                   2040:
                   2041:
1.1       noro     2042: void Pdp_red_mod(NODE arg,LIST *rp)
                   2043: {
                   2044:   DP h,r;
                   2045:   P dmy;
                   2046:   NODE n;
                   2047:
                   2048:   do_weyl = 0;
                   2049:   asir_assert(ARG0(arg),O_DP,"dp_red_mod");
                   2050:   asir_assert(ARG1(arg),O_DP,"dp_red_mod");
                   2051:   asir_assert(ARG2(arg),O_DP,"dp_red_mod");
                   2052:   asir_assert(ARG3(arg),O_N,"dp_red_mod");
1.2       noro     2053:   dp_red_mod((DP)ARG0(arg),(DP)ARG1(arg),(DP)ARG2(arg),ZTOS((Q)ARG3(arg)),
1.1       noro     2054:     &h,&r,&dmy);
                   2055:   NEWNODE(n); BDY(n) = (pointer)h;
                   2056:   NEWNODE(NEXT(n)); BDY(NEXT(n)) = (pointer)r;
                   2057:   NEXT(NEXT(n)) = 0; MKLIST(*rp,n);
                   2058: }
                   2059:
                   2060: void Pdp_subd(NODE arg,DP *rp)
                   2061: {
                   2062:   DP p1,p2;
                   2063:
                   2064:   p1 = (DP)ARG0(arg); p2 = (DP)ARG1(arg);
                   2065:   asir_assert(p1,O_DP,"dp_subd");
                   2066:   asir_assert(p2,O_DP,"dp_subd");
                   2067:   dp_subd(p1,p2,rp);
                   2068: }
                   2069:
                   2070: void Pdp_symb_add(NODE arg,DP *rp)
                   2071: {
                   2072:   DP p1,p2,r;
                   2073:   NODE s0;
                   2074:   MP mp0,mp;
                   2075:   int nv;
                   2076:
                   2077:   p1 = (DP)ARG0(arg); p2 = (DP)ARG1(arg);
                   2078:   asir_assert(p1,O_DP,"dp_symb_add");
                   2079:   asir_assert(p2,O_DP,"dp_symb_add");
                   2080:   if ( !p1 ) { *rp = p2; return; }
                   2081:   else if ( !p2 ) { *rp = p1; return; }
                   2082:   if ( p1->nv != p2->nv )
                   2083:     error("dp_sumb_add : invalid input");
                   2084:   nv = p1->nv;
                   2085:   s0 = symb_merge(dp_dllist(p1),dp_dllist(p2),nv);
                   2086:   for ( mp0 = 0; s0; s0 = NEXT(s0) ) {
                   2087:     NEXTMP(mp0,mp); mp->dl = (DL)BDY(s0); mp->c = (Obj)ONE;
                   2088:   }
                   2089:   NEXT(mp) = 0;
                   2090:   MKDP(nv,mp0,r); r->sugar = MAX(p1->sugar,p2->sugar);
                   2091:   *rp = r;
                   2092: }
                   2093:
                   2094: void Pdp_mul_trunc(NODE arg,DP *rp)
                   2095: {
                   2096:   DP p1,p2,p;
                   2097:
                   2098:   p1 = (DP)ARG0(arg); p2 = (DP)ARG1(arg); p = (DP)ARG2(arg);
                   2099:   asir_assert(p1,O_DP,"dp_mul_trunc");
                   2100:   asir_assert(p2,O_DP,"dp_mul_trunc");
                   2101:   asir_assert(p,O_DP,"dp_mul_trunc");
                   2102:   comm_muld_trunc(CO,p1,p2,BDY(p)->dl,rp);
                   2103: }
                   2104:
                   2105: void Pdp_quo(NODE arg,DP *rp)
                   2106: {
                   2107:   DP p1,p2;
                   2108:
                   2109:   p1 = (DP)ARG0(arg); p2 = (DP)ARG1(arg);
                   2110:   asir_assert(p1,O_DP,"dp_quo");
                   2111:   asir_assert(p2,O_DP,"dp_quo");
                   2112:   comm_quod(CO,p1,p2,rp);
                   2113: }
                   2114:
                   2115: void Pdp_weyl_mul(NODE arg,DP *rp)
                   2116: {
                   2117:   DP p1,p2;
                   2118:
                   2119:   p1 = (DP)ARG0(arg); p2 = (DP)ARG1(arg);
                   2120:   asir_assert(p1,O_DP,"dp_weyl_mul"); asir_assert(p2,O_DP,"dp_weyl_mul");
                   2121:   do_weyl = 1;
                   2122:   muld(CO,p1,p2,rp);
                   2123:   do_weyl = 0;
                   2124: }
                   2125:
                   2126: void Pdp_weyl_act(NODE arg,DP *rp)
                   2127: {
                   2128:   DP p1,p2;
                   2129:
                   2130:   p1 = (DP)ARG0(arg); p2 = (DP)ARG1(arg);
                   2131:   asir_assert(p1,O_DP,"dp_weyl_act"); asir_assert(p2,O_DP,"dp_weyl_act");
                   2132:   weyl_actd(CO,p1,p2,rp);
                   2133: }
                   2134:
                   2135:
                   2136: void Pdp_weyl_mul_mod(NODE arg,DP *rp)
                   2137: {
                   2138:   DP p1,p2;
                   2139:   Q m;
                   2140:
                   2141:   p1 = (DP)ARG0(arg); p2 = (DP)ARG1(arg); m = (Q)ARG2(arg);
                   2142:   asir_assert(p1,O_DP,"dp_weyl_mul_mod");
                   2143:   asir_assert(p2,O_DP,"dp_mul_mod");
                   2144:   asir_assert(m,O_N,"dp_mul_mod");
                   2145:   do_weyl = 1;
1.2       noro     2146:   mulmd(CO,ZTOS(m),p1,p2,rp);
1.1       noro     2147:   do_weyl = 0;
                   2148: }
                   2149:
                   2150: void Pdp_red(NODE arg,LIST *rp)
                   2151: {
                   2152:   NODE n;
                   2153:   DP head,rest,dmy1;
                   2154:   P dmy;
                   2155:
                   2156:   do_weyl = 0;
                   2157:   asir_assert(ARG0(arg),O_DP,"dp_red");
                   2158:   asir_assert(ARG1(arg),O_DP,"dp_red");
                   2159:   asir_assert(ARG2(arg),O_DP,"dp_red");
                   2160:   dp_red((DP)ARG0(arg),(DP)ARG1(arg),(DP)ARG2(arg),&head,&rest,&dmy,&dmy1);
                   2161:   NEWNODE(n); BDY(n) = (pointer)head;
                   2162:   NEWNODE(NEXT(n)); BDY(NEXT(n)) = (pointer)rest;
                   2163:   NEXT(NEXT(n)) = 0; MKLIST(*rp,n);
                   2164: }
                   2165:
                   2166: void Pdp_weyl_red(NODE arg,LIST *rp)
                   2167: {
                   2168:   NODE n;
                   2169:   DP head,rest,dmy1;
                   2170:   P dmy;
                   2171:
                   2172:   asir_assert(ARG0(arg),O_DP,"dp_weyl_red");
                   2173:   asir_assert(ARG1(arg),O_DP,"dp_weyl_red");
                   2174:   asir_assert(ARG2(arg),O_DP,"dp_weyl_red");
                   2175:   do_weyl = 1;
                   2176:   dp_red((DP)ARG0(arg),(DP)ARG1(arg),(DP)ARG2(arg),&head,&rest,&dmy,&dmy1);
                   2177:   do_weyl = 0;
                   2178:   NEWNODE(n); BDY(n) = (pointer)head;
                   2179:   NEWNODE(NEXT(n)); BDY(NEXT(n)) = (pointer)rest;
                   2180:   NEXT(NEXT(n)) = 0; MKLIST(*rp,n);
                   2181: }
                   2182:
                   2183: void Pdp_sp(NODE arg,DP *rp)
                   2184: {
                   2185:   DP p1,p2;
                   2186:
                   2187:   do_weyl = 0;
                   2188:   p1 = (DP)ARG0(arg); p2 = (DP)ARG1(arg);
                   2189:   asir_assert(p1,O_DP,"dp_sp"); asir_assert(p2,O_DP,"dp_sp");
                   2190:   dp_sp(p1,p2,rp);
                   2191: }
                   2192:
                   2193: void Pdp_weyl_sp(NODE arg,DP *rp)
                   2194: {
                   2195:   DP p1,p2;
                   2196:
                   2197:   p1 = (DP)ARG0(arg); p2 = (DP)ARG1(arg);
                   2198:   asir_assert(p1,O_DP,"dp_weyl_sp"); asir_assert(p2,O_DP,"dp_weyl_sp");
                   2199:   do_weyl = 1;
                   2200:   dp_sp(p1,p2,rp);
                   2201:   do_weyl = 0;
                   2202: }
                   2203:
1.9       noro     2204: void Pdpm_sp(NODE arg,Obj *rp)
1.1       noro     2205: {
1.9       noro     2206:   DPM  p1,p2,sp;
                   2207:   DP mul1,mul2;
                   2208:   Obj val;
                   2209:   NODE nd;
                   2210:   LIST l;
1.1       noro     2211:
                   2212:   do_weyl = 0;
                   2213:   p1 = (DPM)ARG0(arg); p2 = (DPM)ARG1(arg);
                   2214:   asir_assert(p1,O_DPM,"dpm_sp"); asir_assert(p2,O_DPM,"dpm_sp");
1.9       noro     2215:   dpm_sp(p1,p2,&sp,&mul1,&mul2);
                   2216:   if ( get_opt("coef",&val) && val ) {
                   2217:     nd = mknode(3,sp,mul1,mul2);
                   2218:     MKLIST(l,nd);
                   2219:     *rp = (Obj)l;
                   2220:   } else {
                   2221:     *rp = (Obj)sp;
                   2222:   }
1.1       noro     2223: }
                   2224:
1.9       noro     2225: void Pdpm_weyl_sp(NODE arg,Obj *rp)
1.1       noro     2226: {
1.9       noro     2227:   DPM  p1,p2,sp;
                   2228:   DP mul1,mul2;
                   2229:   Obj val;
                   2230:   NODE nd;
                   2231:   LIST l;
1.1       noro     2232:
                   2233:   p1 = (DPM)ARG0(arg); p2 = (DPM)ARG1(arg);
                   2234:   asir_assert(p1,O_DPM,"dpm_weyl_sp"); asir_assert(p2,O_DPM,"dpm_weyl_sp");
                   2235:   do_weyl = 1;
1.9       noro     2236:   dpm_sp(p1,p2,&sp,&mul1,&mul2);
1.1       noro     2237:   do_weyl = 0;
1.9       noro     2238:   if ( get_opt("coef",&val) && val ) {
                   2239:     nd = mknode(3,sp,mul1,mul2);
                   2240:     MKLIST(l,nd);
                   2241:     *rp = (Obj)l;
                   2242:   } else {
                   2243:     *rp = (Obj)sp;
                   2244:   }
1.1       noro     2245: }
                   2246:
                   2247: void Pdp_sp_mod(NODE arg,DP *rp)
                   2248: {
                   2249:   DP p1,p2;
                   2250:   int mod;
                   2251:
                   2252:   do_weyl = 0;
                   2253:   p1 = (DP)ARG0(arg); p2 = (DP)ARG1(arg);
                   2254:   asir_assert(p1,O_DP,"dp_sp_mod"); asir_assert(p2,O_DP,"dp_sp_mod");
                   2255:   asir_assert(ARG2(arg),O_N,"dp_sp_mod");
1.2       noro     2256:   mod = ZTOS((Q)ARG2(arg));
1.1       noro     2257:   dp_sp_mod(p1,p2,mod,rp);
                   2258: }
                   2259:
                   2260: void Pdp_lcm(NODE arg,DP *rp)
                   2261: {
                   2262:   int i,n,td;
                   2263:   DL d1,d2,d;
                   2264:   MP m;
                   2265:   DP p1,p2;
                   2266:
                   2267:   p1 = (DP)ARG0(arg); p2 = (DP)ARG1(arg);
                   2268:   asir_assert(p1,O_DP,"dp_lcm"); asir_assert(p2,O_DP,"dp_lcm");
                   2269:   n = p1->nv; d1 = BDY(p1)->dl; d2 = BDY(p2)->dl;
                   2270:   NEWDL(d,n);
                   2271:   for ( i = 0, td = 0; i < n; i++ ) {
                   2272:     d->d[i] = MAX(d1->d[i],d2->d[i]); td += MUL_WEIGHT(d->d[i],i);
                   2273:   }
                   2274:   d->td = td;
                   2275:   NEWMP(m); m->dl = d; m->c = (Obj)ONE; NEXT(m) = 0;
                   2276:   MKDP(n,m,*rp); (*rp)->sugar = td;  /* XXX */
                   2277: }
                   2278:
                   2279: void Pdp_hm(NODE arg,DP *rp)
                   2280: {
                   2281:   DP p;
                   2282:
                   2283:   p = (DP)ARG0(arg); asir_assert(p,O_DP,"dp_hm");
                   2284:   dp_hm(p,rp);
                   2285: }
                   2286:
                   2287: void Pdp_ht(NODE arg,DP *rp)
                   2288: {
                   2289:   DP p;
                   2290:   MP m,mr;
                   2291:
                   2292:   p = (DP)ARG0(arg); asir_assert(p,O_DP,"dp_ht");
                   2293:   dp_ht(p,rp);
                   2294: }
                   2295:
                   2296: void Pdp_hc(NODE arg,Obj *rp)
                   2297: {
                   2298:   asir_assert(ARG0(arg),O_DP,"dp_hc");
                   2299:   if ( !ARG0(arg) )
                   2300:     *rp = 0;
                   2301:   else
                   2302:     *rp = BDY((DP)ARG0(arg))->c;
                   2303: }
                   2304:
                   2305: void Pdp_rest(NODE arg,DP *rp)
                   2306: {
                   2307:   asir_assert(ARG0(arg),O_DP,"dp_rest");
                   2308:   if ( !ARG0(arg) )
                   2309:     *rp = 0;
                   2310:   else
                   2311:     dp_rest((DP)ARG0(arg),rp);
                   2312: }
                   2313:
                   2314: void Pdp_td(NODE arg,Z *rp)
                   2315: {
                   2316:   DP p;
                   2317:
                   2318:   p = (DP)ARG0(arg); asir_assert(p,O_DP,"dp_td");
                   2319:   if ( !p )
                   2320:     *rp = 0;
                   2321:   else
1.2       noro     2322:     STOZ(BDY(p)->dl->td,*rp);
1.1       noro     2323: }
                   2324:
1.15      noro     2325: void Pdpm_td(NODE arg,Z *rp)
                   2326: {
                   2327:   DPM p;
                   2328:
                   2329:   p = (DPM)ARG0(arg); asir_assert(p,O_DPM,"dpm_td");
                   2330:   if ( !p )
                   2331:     *rp = 0;
                   2332:   else
                   2333:     STOZ(BDY(p)->dl->td,*rp);
                   2334: }
                   2335:
1.1       noro     2336: void Pdp_sugar(NODE arg,Z *rp)
                   2337: {
                   2338:   DP p;
                   2339:
                   2340:   p = (DP)ARG0(arg); asir_assert(p,O_DP,"dp_sugar");
                   2341:   if ( !p )
                   2342:     *rp = 0;
                   2343:   else
1.2       noro     2344:     STOZ(p->sugar,*rp);
1.1       noro     2345: }
                   2346:
                   2347: void Pdp_initial_term(NODE arg,Obj *rp)
                   2348: {
                   2349:   struct order_spec *ord;
                   2350:   Num homo;
                   2351:   int modular,is_list;
                   2352:   LIST v,f,l,initiallist;
                   2353:   NODE n;
                   2354:
                   2355:   f = (LIST)ARG0(arg);
                   2356:   if ( f && OID(f) == O_LIST )
                   2357:     is_list = 1;
                   2358:   else {
                   2359:     n = mknode(1,f); MKLIST(l,n); f = l;
                   2360:     is_list = 0;
                   2361:   }
                   2362:   if ( current_option ) {
                   2363:     parse_gr_option(f,current_option,&v,&homo,&modular,&ord);
                   2364:     initd(ord);
                   2365:   } else
                   2366:     ord = dp_current_spec;
                   2367:   initiallist = dp_initial_term(f,ord);
                   2368:   if ( !is_list )
                   2369:     *rp = (Obj)BDY(BDY(initiallist));
                   2370:   else
                   2371:     *rp = (Obj)initiallist;
                   2372: }
                   2373:
                   2374: void Pdp_order(NODE arg,Obj *rp)
                   2375: {
                   2376:   struct order_spec *ord;
                   2377:   Num homo;
                   2378:   int modular,is_list;
                   2379:   LIST v,f,l,ordlist;
                   2380:   NODE n;
                   2381:
                   2382:   f = (LIST)ARG0(arg);
                   2383:   if ( f && OID(f) == O_LIST )
                   2384:     is_list = 1;
                   2385:   else {
                   2386:     n = mknode(1,f); MKLIST(l,n); f = l;
                   2387:     is_list = 0;
                   2388:   }
                   2389:   if ( current_option ) {
                   2390:     parse_gr_option(f,current_option,&v,&homo,&modular,&ord);
                   2391:     initd(ord);
                   2392:   } else
                   2393:     ord = dp_current_spec;
                   2394:   ordlist = dp_order(f,ord);
                   2395:   if ( !is_list )
                   2396:     *rp = (Obj)BDY(BDY(ordlist));
                   2397:   else
                   2398:     *rp = (Obj)ordlist;
                   2399: }
                   2400:
                   2401: void Pdp_set_sugar(NODE arg,Q *rp)
                   2402: {
                   2403:   DP p;
                   2404:   Q q;
                   2405:   int i;
                   2406:
                   2407:   p = (DP)ARG0(arg);
                   2408:   q = (Q)ARG1(arg);
                   2409:   if ( p && q) {
                   2410:     asir_assert(p,O_DP,"dp_set_sugar");
                   2411:     asir_assert(q,O_N, "dp_set_sugar");
1.2       noro     2412:     i = ZTOS(q);
1.1       noro     2413:     if (p->sugar < i) {
                   2414:       p->sugar = i;
                   2415:     }
                   2416:   }
                   2417:   *rp = 0;
                   2418: }
                   2419:
                   2420: void Pdp_cri1(NODE arg,Z *rp)
                   2421: {
                   2422:   DP p1,p2;
                   2423:   int *d1,*d2;
                   2424:   int i,n;
                   2425:
                   2426:   p1 = (DP)ARG0(arg); p2 = (DP)ARG1(arg);
                   2427:   asir_assert(p1,O_DP,"dp_cri1"); asir_assert(p2,O_DP,"dp_cri1");
                   2428:   n = p1->nv; d1 = BDY(p1)->dl->d; d2 = BDY(p2)->dl->d;
                   2429:   for ( i = 0; i < n; i++ )
                   2430:     if ( d1[i] > d2[i] )
                   2431:       break;
                   2432:   *rp = i == n ? ONE : 0;
                   2433: }
                   2434:
                   2435: void Pdp_cri2(NODE arg,Z *rp)
                   2436: {
                   2437:   DP p1,p2;
                   2438:   int *d1,*d2;
                   2439:   int i,n;
                   2440:
                   2441:   p1 = (DP)ARG0(arg); p2 = (DP)ARG1(arg);
                   2442:   asir_assert(p1,O_DP,"dp_cri2"); asir_assert(p2,O_DP,"dp_cri2");
                   2443:   n = p1->nv; d1 = BDY(p1)->dl->d; d2 = BDY(p2)->dl->d;
                   2444:   for ( i = 0; i < n; i++ )
                   2445:     if ( MIN(d1[i],d2[i]) >= 1 )
                   2446:       break;
                   2447:   *rp = i == n ? ONE : 0;
                   2448: }
                   2449:
                   2450: void Pdp_minp(NODE arg,LIST *rp)
                   2451: {
                   2452:   NODE tn,tn1,d,dd,dd0,p,tp;
                   2453:   LIST l,minp;
                   2454:   DP lcm,tlcm;
                   2455:   int s,ts;
                   2456:
                   2457:   asir_assert(ARG0(arg),O_LIST,"dp_minp");
                   2458:   d = BDY((LIST)ARG0(arg)); minp = (LIST)BDY(d);
                   2459:   p = BDY(minp); p = NEXT(NEXT(p)); lcm = (DP)BDY(p); p = NEXT(p);
                   2460:   if ( !ARG1(arg) ) {
1.2       noro     2461:     s = ZTOS((Q)BDY(p)); p = NEXT(p);
1.1       noro     2462:     for ( dd0 = 0, d = NEXT(d); d; d = NEXT(d) ) {
                   2463:       tp = BDY((LIST)BDY(d)); tp = NEXT(NEXT(tp));
                   2464:       tlcm = (DP)BDY(tp); tp = NEXT(tp);
1.2       noro     2465:       ts = ZTOS((Q)BDY(tp)); tp = NEXT(tp);
1.1       noro     2466:       NEXTNODE(dd0,dd);
                   2467:       if ( ts < s ) {
                   2468:         BDY(dd) = (pointer)minp;
                   2469:         minp = (LIST)BDY(d); lcm = tlcm; s = ts;
                   2470:       } else if ( ts == s ) {
                   2471:         if ( compd(CO,lcm,tlcm) > 0 ) {
                   2472:           BDY(dd) = (pointer)minp;
                   2473:           minp = (LIST)BDY(d); lcm = tlcm; s = ts;
                   2474:         } else
                   2475:           BDY(dd) = BDY(d);
                   2476:       } else
                   2477:         BDY(dd) = BDY(d);
                   2478:     }
                   2479:   } else {
                   2480:     for ( dd0 = 0, d = NEXT(d); d; d = NEXT(d) ) {
                   2481:       tp = BDY((LIST)BDY(d)); tp = NEXT(NEXT(tp));
                   2482:       tlcm = (DP)BDY(tp);
                   2483:       NEXTNODE(dd0,dd);
                   2484:       if ( compd(CO,lcm,tlcm) > 0 ) {
                   2485:         BDY(dd) = (pointer)minp; minp = (LIST)BDY(d); lcm = tlcm;
                   2486:       } else
                   2487:         BDY(dd) = BDY(d);
                   2488:     }
                   2489:   }
                   2490:   if ( dd0 )
                   2491:     NEXT(dd) = 0;
                   2492:   MKLIST(l,dd0); MKNODE(tn,l,0); MKNODE(tn1,minp,tn); MKLIST(*rp,tn1);
                   2493: }
                   2494:
                   2495: void Pdp_criB(NODE arg,LIST *rp)
                   2496: {
                   2497:   NODE d,ij,dd,ddd;
                   2498:   int i,j,s,n;
                   2499:   DP *ps;
                   2500:   DL ts,ti,tj,lij,tdl;
                   2501:
                   2502:   asir_assert(ARG0(arg),O_LIST,"dp_criB"); d = BDY((LIST)ARG0(arg));
1.2       noro     2503:   asir_assert(ARG1(arg),O_N,"dp_criB"); s = ZTOS((Q)ARG1(arg));
1.1       noro     2504:   asir_assert(ARG2(arg),O_VECT,"dp_criB"); ps = (DP *)BDY((VECT)ARG2(arg));
                   2505:   if ( !d )
                   2506:     *rp = (LIST)ARG0(arg);
                   2507:   else {
                   2508:     ts = BDY(ps[s])->dl;
                   2509:     n = ps[s]->nv;
                   2510:     NEWDL(tdl,n);
                   2511:     for ( dd = 0; d; d = NEXT(d) ) {
                   2512:       ij = BDY((LIST)BDY(d));
1.2       noro     2513:       i = ZTOS((Q)BDY(ij)); ij = NEXT(ij);
                   2514:       j = ZTOS((Q)BDY(ij)); ij = NEXT(ij);
1.1       noro     2515:       lij = BDY((DP)BDY(ij))->dl;
                   2516:       ti = BDY(ps[i])->dl; tj = BDY(ps[j])->dl;
                   2517:       if ( lij->td != lcm_of_DL(n,lij,ts,tdl)->td
                   2518:         || !dl_equal(n,lij,tdl)
                   2519:         || (lij->td == lcm_of_DL(n,ti,ts,tdl)->td
                   2520:           && dl_equal(n,tdl,lij))
                   2521:         || (lij->td == lcm_of_DL(n,tj,ts,tdl)->td
                   2522:           && dl_equal(n,tdl,lij)) ) {
                   2523:         MKNODE(ddd,BDY(d),dd);
                   2524:         dd = ddd;
                   2525:       }
                   2526:     }
                   2527:     MKLIST(*rp,dd);
                   2528:   }
                   2529: }
                   2530:
                   2531: void Pdp_nelim(NODE arg,Z *rp)
                   2532: {
                   2533:   if ( arg ) {
                   2534:     asir_assert(ARG0(arg),O_N,"dp_nelim");
1.2       noro     2535:     dp_nelim = ZTOS((Q)ARG0(arg));
1.1       noro     2536:   }
1.2       noro     2537:   STOZ(dp_nelim,*rp);
1.1       noro     2538: }
                   2539:
                   2540: void Pdp_mag(NODE arg,Z *rp)
                   2541: {
                   2542:   DP p;
                   2543:   int s;
                   2544:   MP m;
                   2545:
                   2546:   p = (DP)ARG0(arg);
                   2547:   asir_assert(p,O_DP,"dp_mag");
                   2548:   if ( !p )
                   2549:     *rp = 0;
                   2550:   else {
                   2551:     for ( s = 0, m = BDY(p); m; m = NEXT(m) )
                   2552:       s += p_mag((P)m->c);
1.2       noro     2553:     STOZ(s,*rp);
1.1       noro     2554:   }
                   2555: }
                   2556:
                   2557: /* kara_mag is no longer used. */
                   2558:
                   2559: void Pdp_set_kara(NODE arg,Z *rp)
                   2560: {
                   2561:   *rp = 0;
                   2562: }
                   2563:
                   2564: void Pdp_homo(NODE arg,DP *rp)
                   2565: {
                   2566:   asir_assert(ARG0(arg),O_DP,"dp_homo");
                   2567:   dp_homo((DP)ARG0(arg),rp);
                   2568: }
                   2569:
                   2570: void Pdp_dehomo(NODE arg,DP *rp)
                   2571: {
                   2572:   asir_assert(ARG0(arg),O_DP,"dp_dehomo");
                   2573:   dp_dehomo((DP)ARG0(arg),rp);
                   2574: }
                   2575:
1.16      noro     2576: void dpm_homo(DPM a,DPM *b);
                   2577: void dpm_dehomo(DPM a,DPM *b);
                   2578:
                   2579: void Pdpm_homo(NODE arg,DPM *rp)
                   2580: {
                   2581:   asir_assert(ARG0(arg),O_DPM,"dpm_homo");
                   2582:   dpm_homo((DPM)ARG0(arg),rp);
                   2583: }
                   2584:
                   2585: void Pdpm_dehomo(NODE arg,DPM *rp)
                   2586: {
                   2587:   asir_assert(ARG0(arg),O_DPM,"dpm_dehomo");
                   2588:   dpm_dehomo((DPM)ARG0(arg),rp);
                   2589: }
                   2590:
                   2591:
1.1       noro     2592: void Pdp_gr_flags(NODE arg,LIST *rp)
                   2593: {
                   2594:   Obj name,value;
                   2595:   NODE n;
                   2596:
                   2597:   if ( arg ) {
                   2598:     asir_assert(ARG0(arg),O_LIST,"dp_gr_flags");
                   2599:     n = BDY((LIST)ARG0(arg));
                   2600:     while ( n ) {
                   2601:       name = (Obj)BDY(n); n = NEXT(n);
                   2602:       if ( !n )
                   2603:         break;
                   2604:       else {
                   2605:         value = (Obj)BDY(n); n = NEXT(n);
                   2606:       }
                   2607:       dp_set_flag(name,value);
                   2608:     }
                   2609:   }
                   2610:   dp_make_flaglist(rp);
                   2611: }
                   2612:
                   2613: extern int DP_Print, DP_PrintShort;
                   2614:
                   2615: void Pdp_gr_print(NODE arg,Z *rp)
                   2616: {
                   2617:   Z q;
                   2618:   int s;
                   2619:
                   2620:   if ( arg ) {
                   2621:     asir_assert(ARG0(arg),O_N,"dp_gr_print");
                   2622:     q = (Z)ARG0(arg);
1.2       noro     2623:     s = ZTOS(q);
1.1       noro     2624:     switch ( s ) {
                   2625:       case 0:
                   2626:         DP_Print = 0; DP_PrintShort = 0;
                   2627:         break;
                   2628:       case 1:
                   2629:         DP_Print = 1;
                   2630:         break;
                   2631:       case 2:
                   2632:         DP_Print = 0; DP_PrintShort = 1;
                   2633:         break;
                   2634:       default:
                   2635:         DP_Print = s; DP_PrintShort = 0;
                   2636:         break;
                   2637:     }
                   2638:   } else {
                   2639:     if ( DP_Print )  {
1.2       noro     2640:       STOZ(1,q);
1.1       noro     2641:     } else if ( DP_PrintShort ) {
1.2       noro     2642:       STOZ(2,q);
1.1       noro     2643:     } else
                   2644:       q = 0;
                   2645:   }
                   2646:   *rp = q;
                   2647: }
                   2648:
                   2649: void parse_gr_option(LIST f,NODE opt,LIST *v,Num *homo,
                   2650:   int *modular,struct order_spec **ord)
                   2651: {
                   2652:   NODE t,p;
                   2653:   Z m,z;
                   2654:   char *key;
                   2655:   Obj value,dmy;
                   2656:   int ord_is_set = 0;
                   2657:   int modular_is_set = 0;
                   2658:   int homo_is_set = 0;
                   2659:   VL vl,vl0;
                   2660:   LIST vars;
                   2661:   char xiname[BUFSIZ];
                   2662:   NODE x0,x;
                   2663:   DP d;
                   2664:   P xi;
                   2665:   int nv,i;
                   2666:
                   2667:   /* extract vars */
                   2668:   vars = 0;
                   2669:   for ( t = opt; t; t = NEXT(t) ) {
                   2670:     p = BDY((LIST)BDY(t));
                   2671:     key = BDY((STRING)BDY(p));
                   2672:     value = (Obj)BDY(NEXT(p));
                   2673:     if ( !strcmp(key,"v") ) {
                   2674:       /* variable list */
                   2675:       vars = (LIST)value;
                   2676:       break;
                   2677:     }
                   2678:   }
                   2679:   if ( vars ) {
                   2680:     *v = vars; pltovl(vars,&vl);
                   2681:   } else {
                   2682:     for ( t = BDY(f); t; t = NEXT(t) )
                   2683:       if ( BDY(t) && OID((Obj)BDY(t))==O_DP )
                   2684:         break;
                   2685:     if ( t ) {
                   2686:       /* f is DP list */
                   2687:       /* create dummy var list */
                   2688:       d = (DP)BDY(t);
                   2689:       nv = NV(d);
                   2690:       for ( i = 0, vl0 = 0, x0 = 0; i < nv; i++ ) {
                   2691:         NEXTVL(vl0,vl);
                   2692:         NEXTNODE(x0,x);
                   2693:         sprintf(xiname,"x%d",i);
                   2694:         makevar(xiname,&xi);
                   2695:         x->body = (pointer)xi;
                   2696:         vl->v = VR((P)xi);
                   2697:       }
                   2698:       if ( vl0 ) {
                   2699:         NEXT(vl) = 0;
                   2700:         NEXT(x) = 0;
                   2701:       }
                   2702:       MKLIST(vars,x0);
                   2703:       *v = vars;
                   2704:       vl = vl0;
                   2705:     } else {
                   2706:       get_vars((Obj)f,&vl); vltopl(vl,v);
                   2707:     }
                   2708:   }
                   2709:
                   2710:   for ( t = opt; t; t = NEXT(t) ) {
                   2711:     p = BDY((LIST)BDY(t));
                   2712:     key = BDY((STRING)BDY(p));
                   2713:     value = (Obj)BDY(NEXT(p));
                   2714:     if ( !strcmp(key,"v") ) {
                   2715:       /* variable list; ignore */
                   2716:     } else if ( !strcmp(key,"order") ) {
                   2717:       /* order spec */
                   2718:       if ( !vl )
                   2719:         error("parse_gr_option : variables must be specified");
                   2720:       create_order_spec(vl,value,ord);
                   2721:       ord_is_set = 1;
                   2722:     } else if ( !strcmp(key,"block") ) {
                   2723:       create_order_spec(0,value,ord);
                   2724:       ord_is_set = 1;
                   2725:     } else if ( !strcmp(key,"matrix") ) {
                   2726:       create_order_spec(0,value,ord);
                   2727:       ord_is_set = 1;
                   2728:     } else if ( !strcmp(key,"sugarweight") ) {
                   2729:       /* weight */
                   2730:       Pdp_set_weight(NEXT(p),&dmy);
                   2731:     } else if ( !strcmp(key,"homo") ) {
                   2732:       *homo = (Num)value;
                   2733:       homo_is_set = 1;
                   2734:     } else if ( !strcmp(key,"trace") ) {
                   2735:       m = (Z)value;
1.2       noro     2736:       STOZ(0x80000000,z);
1.1       noro     2737:       if ( !m )
                   2738:         *modular = 0;
                   2739:       else if ( cmpz(m,z) >= 0 )
                   2740:         error("parse_gr_option : too large modulus");
                   2741:       else
1.2       noro     2742:         *modular = ZTOS(m);
1.1       noro     2743:       modular_is_set = 1;
                   2744:     } else if ( !strcmp(key,"dp") ) {
                   2745:       /* XXX : ignore */
                   2746:     } else
                   2747:       error("parse_gr_option : not implemented");
                   2748:   }
                   2749:   if ( !ord_is_set ) create_order_spec(0,0,ord);
                   2750:   if ( !modular_is_set ) *modular = 0;
                   2751:   if ( !homo_is_set ) *homo = 0;
                   2752: }
                   2753:
                   2754: void Pdp_gr_main(NODE arg,LIST *rp)
                   2755: {
                   2756:   LIST f,v;
                   2757:   VL vl;
                   2758:   Num homo;
                   2759:   Z m,z;
                   2760:   int modular,ac;
                   2761:   struct order_spec *ord;
                   2762:
                   2763:   do_weyl = 0;
                   2764:   asir_assert(ARG0(arg),O_LIST,"dp_gr_main");
                   2765:   f = (LIST)ARG0(arg);
                   2766:   f = remove_zero_from_list(f);
                   2767:   if ( !BDY(f) ) {
                   2768:     *rp = f; return;
                   2769:   }
                   2770:   if ( (ac = argc(arg)) == 5 ) {
                   2771:     asir_assert(ARG1(arg),O_LIST,"dp_gr_main");
                   2772:     asir_assert(ARG2(arg),O_N,"dp_gr_main");
                   2773:     asir_assert(ARG3(arg),O_N,"dp_gr_main");
                   2774:     v = (LIST)ARG1(arg);
                   2775:     homo = (Num)ARG2(arg);
                   2776:     m = (Z)ARG3(arg);
1.2       noro     2777:     STOZ(0x80000000,z);
1.1       noro     2778:     if ( !m )
                   2779:       modular = 0;
                   2780:     else if ( cmpz(m,z) >= 0 )
                   2781:       error("dp_gr_main : too large modulus");
                   2782:     else
1.2       noro     2783:       modular = ZTOS(m);
1.1       noro     2784:     create_order_spec(0,ARG4(arg),&ord);
                   2785:   } else if ( current_option )
                   2786:     parse_gr_option(f,current_option,&v,&homo,&modular,&ord);
                   2787:   else if ( ac == 1 )
                   2788:     parse_gr_option(f,0,&v,&homo,&modular,&ord);
                   2789:   else
                   2790:     error("dp_gr_main : invalid argument");
                   2791:   dp_gr_main(f,v,homo,modular,0,ord,rp);
                   2792: }
                   2793:
                   2794: void Pdp_interreduce(NODE arg,LIST *rp)
                   2795: {
                   2796:   LIST f,v;
                   2797:   VL vl;
                   2798:   int ac;
                   2799:   struct order_spec *ord;
                   2800:
                   2801:   do_weyl = 0;
                   2802:   asir_assert(ARG0(arg),O_LIST,"dp_interreduce");
                   2803:   f = (LIST)ARG0(arg);
                   2804:   f = remove_zero_from_list(f);
                   2805:   if ( !BDY(f) ) {
                   2806:     *rp = f; return;
                   2807:   }
                   2808:   if ( (ac = argc(arg)) == 3 ) {
                   2809:     asir_assert(ARG1(arg),O_LIST,"dp_interreduce");
                   2810:     v = (LIST)ARG1(arg);
                   2811:     create_order_spec(0,ARG2(arg),&ord);
                   2812:   }
                   2813:   dp_interreduce(f,v,0,ord,rp);
                   2814: }
                   2815:
                   2816: void Pdp_gr_f_main(NODE arg,LIST *rp)
                   2817: {
                   2818:   LIST f,v;
                   2819:   Num homo;
                   2820:   int m,field,t;
                   2821:   struct order_spec *ord;
                   2822:   NODE n;
                   2823:
                   2824:   do_weyl = 0;
                   2825:   asir_assert(ARG0(arg),O_LIST,"dp_gr_f_main");
                   2826:   asir_assert(ARG1(arg),O_LIST,"dp_gr_f_main");
                   2827:   asir_assert(ARG2(arg),O_N,"dp_gr_f_main");
                   2828:   f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
                   2829:   f = remove_zero_from_list(f);
                   2830:   if ( !BDY(f) ) {
                   2831:     *rp = f; return;
                   2832:   }
                   2833:   homo = (Num)ARG2(arg);
                   2834: #if 0
                   2835:   asir_assert(ARG3(arg),O_N,"dp_gr_f_main");
1.2       noro     2836:   m = ZTOS((Q)ARG3(arg));
1.1       noro     2837:   if ( m )
                   2838:     error("dp_gr_f_main : trace lifting is not implemented yet");
                   2839:   create_order_spec(0,ARG4(arg),&ord);
                   2840: #else
                   2841:   m = 0;
                   2842:   create_order_spec(0,ARG3(arg),&ord);
                   2843: #endif
                   2844:   field = 0;
                   2845:   for ( n = BDY(f); n; n = NEXT(n) ) {
                   2846:     t = get_field_type(BDY(n));
                   2847:     if ( !t )
                   2848:       continue;
                   2849:     if ( t < 0 )
                   2850:       error("dp_gr_f_main : incosistent coefficients");
                   2851:     if ( !field )
                   2852:       field = t;
                   2853:     else if ( t != field )
                   2854:       error("dp_gr_f_main : incosistent coefficients");
                   2855:   }
                   2856:   dp_gr_main(f,v,homo,m?1:0,field,ord,rp);
                   2857: }
                   2858:
                   2859: void Pdp_f4_main(NODE arg,LIST *rp)
                   2860: {
                   2861:   LIST f,v;
                   2862:   struct order_spec *ord;
                   2863:
                   2864:   do_weyl = 0;
                   2865:   asir_assert(ARG0(arg),O_LIST,"dp_f4_main");
                   2866:   asir_assert(ARG1(arg),O_LIST,"dp_f4_main");
                   2867:   f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
                   2868:   f = remove_zero_from_list(f);
                   2869:   if ( !BDY(f) ) {
                   2870:     *rp = f; return;
                   2871:   }
                   2872:   create_order_spec(0,ARG2(arg),&ord);
                   2873:   dp_f4_main(f,v,ord,rp);
                   2874: }
                   2875:
                   2876: /* dp_gr_checklist(list of dp) */
                   2877:
                   2878: void Pdp_gr_checklist(NODE arg,LIST *rp)
                   2879: {
                   2880:   VECT g;
                   2881:   LIST dp;
                   2882:   NODE r;
                   2883:   int n;
                   2884:
                   2885:   do_weyl = 0;
                   2886:   asir_assert(ARG0(arg),O_LIST,"dp_gr_checklist");
                   2887:   asir_assert(ARG1(arg),O_N,"dp_gr_checklist");
1.2       noro     2888:   n = ZTOS((Q)ARG1(arg));
1.1       noro     2889:   gbcheck_list(BDY((LIST)ARG0(arg)),n,&g,&dp);
                   2890:   r = mknode(2,g,dp);
                   2891:   MKLIST(*rp,r);
                   2892: }
                   2893:
                   2894: void Pdp_f4_mod_main(NODE arg,LIST *rp)
                   2895: {
                   2896:   LIST f,v;
                   2897:   int m;
                   2898:   struct order_spec *ord;
                   2899:
                   2900:   do_weyl = 0;
                   2901:   asir_assert(ARG0(arg),O_LIST,"dp_f4_mod_main");
                   2902:   asir_assert(ARG1(arg),O_LIST,"dp_f4_mod_main");
                   2903:   asir_assert(ARG2(arg),O_N,"dp_f4_mod_main");
1.2       noro     2904:   f = (LIST)ARG0(arg); v = (LIST)ARG1(arg); m = ZTOS((Q)ARG2(arg));
1.1       noro     2905:   f = remove_zero_from_list(f);
                   2906:   if ( !BDY(f) ) {
                   2907:     *rp = f; return;
                   2908:   }
                   2909:   if ( !m )
                   2910:     error("dp_f4_mod_main : invalid argument");
                   2911:   create_order_spec(0,ARG3(arg),&ord);
                   2912:   dp_f4_mod_main(f,v,m,ord,rp);
                   2913: }
                   2914:
                   2915: void Pdp_gr_mod_main(NODE arg,LIST *rp)
                   2916: {
                   2917:   LIST f,v;
                   2918:   Num homo;
                   2919:   int m;
                   2920:   struct order_spec *ord;
                   2921:
                   2922:   do_weyl = 0;
                   2923:   asir_assert(ARG0(arg),O_LIST,"dp_gr_mod_main");
                   2924:   asir_assert(ARG1(arg),O_LIST,"dp_gr_mod_main");
                   2925:   asir_assert(ARG2(arg),O_N,"dp_gr_mod_main");
                   2926:   asir_assert(ARG3(arg),O_N,"dp_gr_mod_main");
                   2927:   f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
                   2928:   f = remove_zero_from_list(f);
                   2929:   if ( !BDY(f) ) {
                   2930:     *rp = f; return;
                   2931:   }
1.2       noro     2932:   homo = (Num)ARG2(arg); m = ZTOS((Q)ARG3(arg));
1.1       noro     2933:   if ( !m )
                   2934:     error("dp_gr_mod_main : invalid argument");
                   2935:   create_order_spec(0,ARG4(arg),&ord);
                   2936:   dp_gr_mod_main(f,v,homo,m,ord,rp);
                   2937: }
                   2938:
                   2939: void Psetmod_ff(NODE node, Obj *val);
                   2940:
                   2941: void Pnd_f4(NODE arg,LIST *rp)
                   2942: {
                   2943:   LIST f,v;
                   2944:   int m,homo,retdp,ac;
                   2945:   Obj val;
                   2946:   Z mq,z;
                   2947:   Num nhomo;
                   2948:   NODE node;
                   2949:   struct order_spec *ord;
                   2950:
                   2951:   do_weyl = 0;
                   2952:   nd_rref2 = 0;
                   2953:   retdp = 0;
                   2954:   if ( (ac = argc(arg)) == 4 ) {
                   2955:     asir_assert(ARG0(arg),O_LIST,"nd_f4");
                   2956:     asir_assert(ARG1(arg),O_LIST,"nd_f4");
                   2957:     asir_assert(ARG2(arg),O_N,"nd_f4");
                   2958:     f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
                   2959:     f = remove_zero_from_list(f);
                   2960:     if ( !BDY(f) ) {
                   2961:       *rp = f; return;
                   2962:     }
                   2963:       mq = (Z)ARG2(arg);
1.2       noro     2964:       STOZ((unsigned long)0x40000000,z);
1.1       noro     2965:       if ( cmpz(mq,z) >= 0 ) {
                   2966:         node = mknode(1,mq);
                   2967:         Psetmod_ff(node,&val);
                   2968:         m = -2;
                   2969:     } else
1.2       noro     2970:       m = ZTOS(mq);
1.1       noro     2971:     create_order_spec(0,ARG3(arg),&ord);
                   2972:     homo = 0;
                   2973:     if ( get_opt("homo",&val) && val ) homo = 1;
                   2974:     if ( get_opt("dp",&val) && val ) retdp = 1;
                   2975:     if ( get_opt("rref2",&val) && val ) nd_rref2 = 1;
                   2976:   } else if ( ac == 1 ) {
                   2977:     f = (LIST)ARG0(arg);
                   2978:     parse_gr_option(f,current_option,&v,&nhomo,&m,&ord);
1.2       noro     2979:     homo = ZTOS((Q)nhomo);
1.1       noro     2980:     if ( get_opt("dp",&val) && val ) retdp = 1;
                   2981:     if ( get_opt("rref2",&val) && val ) nd_rref2 = 1;
                   2982:   } else
                   2983:     error("nd_f4 : invalid argument");
                   2984:   nd_gr(f,v,m,homo,retdp,1,ord,rp);
                   2985: }
                   2986:
                   2987: void Pnd_gr(NODE arg,LIST *rp)
                   2988: {
                   2989:   LIST f,v;
                   2990:   int m,homo,retdp,ac;
                   2991:   Obj val;
                   2992:   Z mq,z;
                   2993:   Num nhomo;
                   2994:   NODE node;
                   2995:   struct order_spec *ord;
                   2996:
                   2997:   do_weyl = 0;
                   2998:   retdp = 0;
                   2999:   if ( (ac=argc(arg)) == 4 ) {
                   3000:     asir_assert(ARG0(arg),O_LIST,"nd_gr");
                   3001:     asir_assert(ARG1(arg),O_LIST,"nd_gr");
                   3002:     asir_assert(ARG2(arg),O_N,"nd_gr");
                   3003:     f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
                   3004:     f = remove_zero_from_list(f);
                   3005:     if ( !BDY(f) ) {
                   3006:       *rp = f; return;
                   3007:     }
                   3008:       mq = (Z)ARG2(arg);
1.2       noro     3009:       STOZ(0x40000000,z);
1.1       noro     3010:       if ( cmpz(mq,z) >= 0 ) {
                   3011:         node = mknode(1,mq);
                   3012:         Psetmod_ff(node,&val);
                   3013:         m = -2;
                   3014:       } else
1.2       noro     3015:         m = ZTOS(mq);
1.1       noro     3016:     create_order_spec(0,ARG3(arg),&ord);
                   3017:     homo = 0;
                   3018:     if ( get_opt("homo",&val) && val ) homo = 1;
                   3019:     if ( get_opt("dp",&val) && val ) retdp = 1;
                   3020:   } else if ( ac == 1 ) {
                   3021:     f = (LIST)ARG0(arg);
                   3022:     parse_gr_option(f,current_option,&v,&nhomo,&m,&ord);
1.2       noro     3023:     homo = ZTOS((Q)nhomo);
1.1       noro     3024:     if ( get_opt("dp",&val) && val ) retdp = 1;
                   3025:   } else
                   3026:     error("nd_gr : invalid argument");
                   3027:   nd_gr(f,v,m,homo,retdp,0,ord,rp);
                   3028: }
                   3029:
1.25      noro     3030: void nd_sba(LIST f,LIST v,int m,int homo,int retdp,int f4,struct order_spec *ord,LIST *rp);
1.24      noro     3031:
                   3032: void Pnd_sba(NODE arg,LIST *rp)
                   3033: {
                   3034:   LIST f,v;
                   3035:   int m,homo,retdp,ac;
                   3036:   Obj val;
                   3037:   Z mq,z;
                   3038:   Num nhomo;
                   3039:   NODE node;
                   3040:   struct order_spec *ord;
                   3041:
                   3042:   do_weyl = 0;
                   3043:   retdp = 0;
                   3044:   if ( (ac=argc(arg)) == 4 ) {
                   3045:     asir_assert(ARG0(arg),O_LIST,"nd_sba");
                   3046:     asir_assert(ARG1(arg),O_LIST,"nd_sba");
                   3047:     asir_assert(ARG2(arg),O_N,"nd_sba");
                   3048:     f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
                   3049:     f = remove_zero_from_list(f);
                   3050:     if ( !BDY(f) ) {
                   3051:       *rp = f; return;
                   3052:     }
                   3053:       mq = (Z)ARG2(arg);
                   3054:       STOZ(0x40000000,z);
                   3055:       if ( cmpz(mq,z) >= 0 ) {
                   3056:         node = mknode(1,mq);
                   3057:         Psetmod_ff(node,&val);
                   3058:         m = -2;
                   3059:       } else
                   3060:         m = ZTOS(mq);
                   3061:     create_order_spec(0,ARG3(arg),&ord);
                   3062:     homo = 0;
                   3063:     if ( get_opt("homo",&val) && val ) homo = 1;
                   3064:     if ( get_opt("dp",&val) && val ) retdp = 1;
                   3065:   } else if ( ac == 1 ) {
                   3066:     f = (LIST)ARG0(arg);
                   3067:     parse_gr_option(f,current_option,&v,&nhomo,&m,&ord);
                   3068:     homo = ZTOS((Q)nhomo);
                   3069:     if ( get_opt("dp",&val) && val ) retdp = 1;
                   3070:   } else
                   3071:     error("nd_gr : invalid argument");
1.25      noro     3072:   nd_sba(f,v,m,homo,retdp,0,ord,rp);
                   3073: }
                   3074:
                   3075: void Pnd_sba_f4(NODE arg,LIST *rp)
                   3076: {
                   3077:   LIST f,v;
                   3078:   int m,homo,retdp,ac;
                   3079:   Obj val;
                   3080:   Z mq,z;
                   3081:   Num nhomo;
                   3082:   NODE node;
                   3083:   struct order_spec *ord;
                   3084:
                   3085:   do_weyl = 0;
                   3086:   retdp = 0;
                   3087:   if ( (ac=argc(arg)) == 4 ) {
                   3088:     asir_assert(ARG0(arg),O_LIST,"nd_sba");
                   3089:     asir_assert(ARG1(arg),O_LIST,"nd_sba");
                   3090:     asir_assert(ARG2(arg),O_N,"nd_sba");
                   3091:     f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
                   3092:     f = remove_zero_from_list(f);
                   3093:     if ( !BDY(f) ) {
                   3094:       *rp = f; return;
                   3095:     }
                   3096:       mq = (Z)ARG2(arg);
                   3097:       STOZ(0x40000000,z);
                   3098:       if ( cmpz(mq,z) >= 0 ) {
                   3099:         node = mknode(1,mq);
                   3100:         Psetmod_ff(node,&val);
                   3101:         m = -2;
                   3102:       } else
                   3103:         m = ZTOS(mq);
                   3104:     create_order_spec(0,ARG3(arg),&ord);
                   3105:     homo = 0;
                   3106:     if ( get_opt("homo",&val) && val ) homo = 1;
                   3107:     if ( get_opt("dp",&val) && val ) retdp = 1;
                   3108:   } else if ( ac == 1 ) {
                   3109:     f = (LIST)ARG0(arg);
                   3110:     parse_gr_option(f,current_option,&v,&nhomo,&m,&ord);
                   3111:     homo = ZTOS((Q)nhomo);
                   3112:     if ( get_opt("dp",&val) && val ) retdp = 1;
                   3113:   } else
                   3114:     error("nd_gr : invalid argument");
                   3115:   nd_sba(f,v,m,homo,retdp,1,ord,rp);
1.24      noro     3116: }
                   3117:
1.1       noro     3118: void Pnd_gr_postproc(NODE arg,LIST *rp)
                   3119: {
                   3120:   LIST f,v;
                   3121:   int m,do_check;
                   3122:   Z mq,z;
                   3123:   Obj val;
                   3124:   NODE node;
                   3125:   struct order_spec *ord;
                   3126:
                   3127:   do_weyl = 0;
                   3128:   asir_assert(ARG0(arg),O_LIST,"nd_gr");
                   3129:   asir_assert(ARG1(arg),O_LIST,"nd_gr");
                   3130:   asir_assert(ARG2(arg),O_N,"nd_gr");
                   3131:   f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
                   3132:   f = remove_zero_from_list(f);
                   3133:   if ( !BDY(f) ) {
                   3134:     *rp = f; return;
                   3135:   }
                   3136:   mq = (Z)ARG2(arg);
1.2       noro     3137:   STOZ(0x40000000,z);
1.1       noro     3138:   if ( cmpz(mq,z) >= 0 ) {
                   3139:     node = mknode(1,mq);
                   3140:     Psetmod_ff(node,&val);
                   3141:     m = -2;
                   3142:   } else
1.2       noro     3143:     m = ZTOS(mq);
1.1       noro     3144:   create_order_spec(0,ARG3(arg),&ord);
                   3145:   do_check = ARG4(arg) ? 1 : 0;
                   3146:   nd_gr_postproc(f,v,m,ord,do_check,rp);
                   3147: }
                   3148:
                   3149: void Pnd_gr_recompute_trace(NODE arg,LIST *rp)
                   3150: {
                   3151:   LIST f,v,tlist;
                   3152:   int m;
                   3153:   struct order_spec *ord;
                   3154:
                   3155:   do_weyl = 0;
                   3156:   asir_assert(ARG0(arg),O_LIST,"nd_gr_recompute_trace");
                   3157:   asir_assert(ARG1(arg),O_LIST,"nd_gr_recompute_trace");
                   3158:   asir_assert(ARG2(arg),O_N,"nd_gr_recompute_trace");
                   3159:   f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
1.2       noro     3160:   m = ZTOS((Q)ARG2(arg));
1.1       noro     3161:   create_order_spec(0,ARG3(arg),&ord);
                   3162:   tlist = (LIST)ARG4(arg);
                   3163:   nd_gr_recompute_trace(f,v,m,ord,tlist,rp);
                   3164: }
                   3165:
                   3166: Obj nd_btog_one(LIST f,LIST v,int m,struct order_spec *ord,LIST tlist,int pos);
                   3167: Obj nd_btog(LIST f,LIST v,int m,struct order_spec *ord,LIST tlist);
                   3168:
                   3169: void Pnd_btog(NODE arg,Obj *rp)
                   3170: {
                   3171:   LIST f,v,tlist;
                   3172:   Z mq,z;
                   3173:   int m,ac,pos;
                   3174:   struct order_spec *ord;
                   3175:   NODE node;
                   3176:   pointer val;
                   3177:
                   3178:   do_weyl = 0;
                   3179:   asir_assert(ARG0(arg),O_LIST,"nd_btog");
                   3180:   asir_assert(ARG1(arg),O_LIST,"nd_btog");
                   3181:   asir_assert(ARG2(arg),O_N,"nd_btog");
                   3182:   f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
                   3183:   mq = (Z)ARG2(arg);
1.2       noro     3184:   STOZ(0x40000000,z);
1.1       noro     3185:   if ( cmpz(mq,z) >= 0 ) {
                   3186:     node = mknode(1,mq);
                   3187:     Psetmod_ff(node,(Obj *)&val);
                   3188:     m = -2;
                   3189:   } else
1.2       noro     3190:     m = ZTOS(mq);
1.1       noro     3191:   create_order_spec(0,ARG3(arg),&ord);
                   3192:   tlist = (LIST)ARG4(arg);
                   3193:   if ( (ac = argc(arg)) == 6 ) {
                   3194:     asir_assert(ARG5(arg),O_N,"nd_btog");
1.2       noro     3195:     pos = ZTOS((Q)ARG5(arg));
1.1       noro     3196:     *rp = nd_btog_one(f,v,m,ord,tlist,pos);
                   3197:   } else if ( ac == 5 )
                   3198:     *rp = nd_btog(f,v,m,ord,tlist);
                   3199:   else
                   3200:     error("nd_btog : argument mismatch");
                   3201: }
                   3202:
                   3203: void Pnd_weyl_gr_postproc(NODE arg,LIST *rp)
                   3204: {
                   3205:   LIST f,v;
                   3206:   int m,do_check;
                   3207:   struct order_spec *ord;
                   3208:
                   3209:   do_weyl = 1;
                   3210:   asir_assert(ARG0(arg),O_LIST,"nd_gr");
                   3211:   asir_assert(ARG1(arg),O_LIST,"nd_gr");
                   3212:   asir_assert(ARG2(arg),O_N,"nd_gr");
                   3213:   f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
                   3214:   f = remove_zero_from_list(f);
                   3215:   if ( !BDY(f) ) {
                   3216:     *rp = f; do_weyl = 0; return;
                   3217:   }
1.2       noro     3218:   m = ZTOS((Q)ARG2(arg));
1.1       noro     3219:   create_order_spec(0,ARG3(arg),&ord);
                   3220:   do_check = ARG4(arg) ? 1 : 0;
                   3221:   nd_gr_postproc(f,v,m,ord,do_check,rp);
                   3222:   do_weyl = 0;
                   3223: }
                   3224:
                   3225: void Pnd_gr_trace(NODE arg,LIST *rp)
                   3226: {
                   3227:   LIST f,v;
                   3228:   int m,homo,ac;
1.9       noro     3229:   Obj val;
                   3230:   int retdp;
1.1       noro     3231:   Num nhomo;
                   3232:   struct order_spec *ord;
                   3233:
                   3234:   do_weyl = 0;
                   3235:   if ( (ac = argc(arg)) == 5 ) {
                   3236:     asir_assert(ARG0(arg),O_LIST,"nd_gr_trace");
                   3237:     asir_assert(ARG1(arg),O_LIST,"nd_gr_trace");
                   3238:     asir_assert(ARG2(arg),O_N,"nd_gr_trace");
                   3239:     asir_assert(ARG3(arg),O_N,"nd_gr_trace");
                   3240:     f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
                   3241:     f = remove_zero_from_list(f);
                   3242:     if ( !BDY(f) ) {
                   3243:       *rp = f; return;
                   3244:     }
1.2       noro     3245:     homo = ZTOS((Q)ARG2(arg));
                   3246:     m = ZTOS((Q)ARG3(arg));
1.1       noro     3247:     create_order_spec(0,ARG4(arg),&ord);
                   3248:   } else if ( ac == 1 ) {
                   3249:     f = (LIST)ARG0(arg);
                   3250:     parse_gr_option(f,current_option,&v,&nhomo,&m,&ord);
1.2       noro     3251:     homo = ZTOS((Q)nhomo);
1.1       noro     3252:   } else
                   3253:     error("nd_gr_trace : invalid argument");
1.9       noro     3254:   retdp = 0;
                   3255:   if ( get_opt("dp",&val) && val ) retdp = 1;
                   3256:   nd_gr_trace(f,v,m,homo,retdp,0,ord,rp);
1.1       noro     3257: }
                   3258:
                   3259: void Pnd_f4_trace(NODE arg,LIST *rp)
                   3260: {
                   3261:   LIST f,v;
                   3262:   int m,homo,ac;
1.9       noro     3263:   int retdp;
                   3264:   Obj val;
1.1       noro     3265:   Num nhomo;
                   3266:   struct order_spec *ord;
                   3267:
                   3268:   do_weyl = 0;
                   3269:   if ( (ac = argc(arg))==5 ) {
                   3270:     asir_assert(ARG0(arg),O_LIST,"nd_f4_trace");
                   3271:     asir_assert(ARG1(arg),O_LIST,"nd_f4_trace");
                   3272:     asir_assert(ARG2(arg),O_N,"nd_f4_trace");
                   3273:     asir_assert(ARG3(arg),O_N,"nd_f4_trace");
                   3274:     f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
                   3275:     f = remove_zero_from_list(f);
                   3276:     if ( !BDY(f) ) {
                   3277:       *rp = f; return;
                   3278:     }
1.2       noro     3279:     homo = ZTOS((Q)ARG2(arg));
                   3280:     m = ZTOS((Q)ARG3(arg));
1.1       noro     3281:     create_order_spec(0,ARG4(arg),&ord);
                   3282:   } else if ( ac == 1 ) {
                   3283:     f = (LIST)ARG0(arg);
                   3284:     parse_gr_option(f,current_option,&v,&nhomo,&m,&ord);
1.2       noro     3285:     homo = ZTOS((Q)nhomo);
1.1       noro     3286:   } else
                   3287:     error("nd_gr_trace : invalid argument");
1.9       noro     3288:   retdp = 0;
                   3289:   if ( get_opt("dp",&val) && val ) retdp = 1;
                   3290:   nd_gr_trace(f,v,m,homo,retdp,1,ord,rp);
1.1       noro     3291: }
                   3292:
                   3293: void Pnd_weyl_gr(NODE arg,LIST *rp)
                   3294: {
                   3295:   LIST f,v;
                   3296:   int m,homo,retdp,ac;
                   3297:   Obj val;
                   3298:   Num nhomo;
                   3299:   struct order_spec *ord;
                   3300:
                   3301:   do_weyl = 1;
                   3302:   retdp = 0;
                   3303:   if ( (ac = argc(arg)) == 4 ) {
                   3304:     asir_assert(ARG0(arg),O_LIST,"nd_weyl_gr");
                   3305:     asir_assert(ARG1(arg),O_LIST,"nd_weyl_gr");
                   3306:     asir_assert(ARG2(arg),O_N,"nd_weyl_gr");
                   3307:     f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
                   3308:     f = remove_zero_from_list(f);
                   3309:     if ( !BDY(f) ) {
                   3310:       *rp = f; do_weyl = 0; return;
                   3311:     }
1.2       noro     3312:     m = ZTOS((Q)ARG2(arg));
1.1       noro     3313:     create_order_spec(0,ARG3(arg),&ord);
                   3314:     homo = 0;
                   3315:     if ( get_opt("homo",&val) && val ) homo = 1;
                   3316:     if ( get_opt("dp",&val) && val ) retdp = 1;
                   3317:   } else if ( ac == 1 ) {
                   3318:     f = (LIST)ARG0(arg);
                   3319:     parse_gr_option(f,current_option,&v,&nhomo,&m,&ord);
1.2       noro     3320:     homo = ZTOS((Q)nhomo);
1.1       noro     3321:     if ( get_opt("dp",&val) && val ) retdp = 1;
                   3322:   } else
                   3323:     error("nd_weyl_gr : invalid argument");
                   3324:   nd_gr(f,v,m,homo,retdp,0,ord,rp);
                   3325:   do_weyl = 0;
                   3326: }
                   3327:
                   3328: void Pnd_weyl_gr_trace(NODE arg,LIST *rp)
                   3329: {
                   3330:   LIST f,v;
1.9       noro     3331:   int m,homo,ac,retdp;
                   3332:   Obj val;
1.1       noro     3333:   Num nhomo;
                   3334:   struct order_spec *ord;
                   3335:
                   3336:   do_weyl = 1;
                   3337:   if ( (ac = argc(arg)) == 5 ) {
                   3338:     asir_assert(ARG0(arg),O_LIST,"nd_weyl_gr_trace");
                   3339:     asir_assert(ARG1(arg),O_LIST,"nd_weyl_gr_trace");
                   3340:     asir_assert(ARG2(arg),O_N,"nd_weyl_gr_trace");
                   3341:     asir_assert(ARG3(arg),O_N,"nd_weyl_gr_trace");
                   3342:     f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
                   3343:     f = remove_zero_from_list(f);
                   3344:     if ( !BDY(f) ) {
                   3345:       *rp = f; do_weyl = 0; return;
                   3346:     }
1.2       noro     3347:     homo = ZTOS((Q)ARG2(arg));
                   3348:     m = ZTOS((Q)ARG3(arg));
1.1       noro     3349:     create_order_spec(0,ARG4(arg),&ord);
                   3350:   } else if ( ac == 1 ) {
                   3351:     f = (LIST)ARG0(arg);
                   3352:     parse_gr_option(f,current_option,&v,&nhomo,&m,&ord);
1.2       noro     3353:     homo = ZTOS((Q)nhomo);
1.1       noro     3354:   } else
                   3355:     error("nd_weyl_gr_trace : invalid argument");
1.9       noro     3356:   retdp = 0;
                   3357:   if ( get_opt("dp",&val) && val ) retdp = 1;
                   3358:   nd_gr_trace(f,v,m,homo,retdp,0,ord,rp);
1.1       noro     3359:   do_weyl = 0;
                   3360: }
                   3361:
                   3362: void Pnd_nf(NODE arg,Obj *rp)
                   3363: {
                   3364:   Obj f;
                   3365:   LIST g,v;
                   3366:   struct order_spec *ord;
                   3367:
                   3368:   do_weyl = 0;
                   3369:   asir_assert(ARG1(arg),O_LIST,"nd_nf");
                   3370:   asir_assert(ARG2(arg),O_LIST,"nd_nf");
                   3371:   asir_assert(ARG4(arg),O_N,"nd_nf");
                   3372:   f = (Obj)ARG0(arg);
                   3373:   g = (LIST)ARG1(arg); g = remove_zero_from_list(g);
                   3374:   if ( !BDY(g) ) {
                   3375:     *rp = f; return;
                   3376:   }
                   3377:   v = (LIST)ARG2(arg);
                   3378:   create_order_spec(0,ARG3(arg),&ord);
1.2       noro     3379:   nd_nf_p(f,g,v,ZTOS((Q)ARG4(arg)),ord,rp);
1.1       noro     3380: }
                   3381:
                   3382: void Pnd_weyl_nf(NODE arg,Obj *rp)
                   3383: {
                   3384:   Obj f;
                   3385:   LIST g,v;
                   3386:   struct order_spec *ord;
                   3387:
                   3388:   do_weyl = 1;
                   3389:   asir_assert(ARG1(arg),O_LIST,"nd_weyl_nf");
                   3390:   asir_assert(ARG2(arg),O_LIST,"nd_weyl_nf");
                   3391:   asir_assert(ARG4(arg),O_N,"nd_weyl_nf");
                   3392:   f = (Obj)ARG0(arg);
                   3393:   g = (LIST)ARG1(arg); g = remove_zero_from_list(g);
                   3394:   if ( !BDY(g) ) {
                   3395:     *rp = f; return;
                   3396:   }
                   3397:   v = (LIST)ARG2(arg);
                   3398:   create_order_spec(0,ARG3(arg),&ord);
1.2       noro     3399:   nd_nf_p(f,g,v,ZTOS((Q)ARG4(arg)),ord,rp);
1.1       noro     3400: }
                   3401:
                   3402: /* for Weyl algebra */
                   3403:
                   3404: void Pdp_weyl_gr_main(NODE arg,LIST *rp)
                   3405: {
                   3406:   LIST f,v;
                   3407:   Num homo;
                   3408:   Z m,z;
                   3409:   int modular,ac;
                   3410:   struct order_spec *ord;
                   3411:
                   3412:
                   3413:   asir_assert(ARG0(arg),O_LIST,"dp_weyl_gr_main");
                   3414:   f = (LIST)ARG0(arg);
                   3415:   f = remove_zero_from_list(f);
                   3416:   if ( !BDY(f) ) {
                   3417:     *rp = f; return;
                   3418:   }
                   3419:   if ( (ac = argc(arg)) == 5 ) {
                   3420:     asir_assert(ARG1(arg),O_LIST,"dp_weyl_gr_main");
                   3421:     asir_assert(ARG2(arg),O_N,"dp_weyl_gr_main");
                   3422:     asir_assert(ARG3(arg),O_N,"dp_weyl_gr_main");
                   3423:     v = (LIST)ARG1(arg);
                   3424:     homo = (Num)ARG2(arg);
                   3425:     m = (Z)ARG3(arg);
1.2       noro     3426:     STOZ(0x80000000,z);
1.1       noro     3427:     if ( !m )
                   3428:       modular = 0;
                   3429:     else if ( cmpz(m,z) >= 0 )
                   3430:       error("dp_weyl_gr_main : too large modulus");
                   3431:     else
1.2       noro     3432:       modular = ZTOS(m);
1.1       noro     3433:     create_order_spec(0,ARG4(arg),&ord);
                   3434:   } else if ( current_option )
                   3435:     parse_gr_option(f,current_option,&v,&homo,&modular,&ord);
                   3436:   else if ( ac == 1 )
                   3437:     parse_gr_option(f,0,&v,&homo,&modular,&ord);
                   3438:   else
                   3439:     error("dp_weyl_gr_main : invalid argument");
                   3440:   do_weyl = 1;
                   3441:   dp_gr_main(f,v,homo,modular,0,ord,rp);
                   3442:   do_weyl = 0;
                   3443: }
                   3444:
                   3445: void Pdp_weyl_gr_f_main(NODE arg,LIST *rp)
                   3446: {
                   3447:   LIST f,v;
                   3448:   Num homo;
                   3449:   struct order_spec *ord;
                   3450:
                   3451:   asir_assert(ARG0(arg),O_LIST,"dp_weyl_gr_main");
                   3452:   asir_assert(ARG1(arg),O_LIST,"dp_weyl_gr_main");
                   3453:   asir_assert(ARG2(arg),O_N,"dp_weyl_gr_main");
                   3454:   asir_assert(ARG3(arg),O_N,"dp_weyl_gr_main");
                   3455:   f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
                   3456:   f = remove_zero_from_list(f);
                   3457:   if ( !BDY(f) ) {
                   3458:     *rp = f; return;
                   3459:   }
                   3460:   homo = (Num)ARG2(arg);
                   3461:   create_order_spec(0,ARG3(arg),&ord);
                   3462:   do_weyl = 1;
                   3463:   dp_gr_main(f,v,homo,0,1,ord,rp);
                   3464:   do_weyl = 0;
                   3465: }
                   3466:
                   3467: void Pdp_weyl_f4_main(NODE arg,LIST *rp)
                   3468: {
                   3469:   LIST f,v;
                   3470:   struct order_spec *ord;
                   3471:
                   3472:   asir_assert(ARG0(arg),O_LIST,"dp_weyl_f4_main");
                   3473:   asir_assert(ARG1(arg),O_LIST,"dp_weyl_f4_main");
                   3474:   f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
                   3475:   f = remove_zero_from_list(f);
                   3476:   if ( !BDY(f) ) {
                   3477:     *rp = f; return;
                   3478:   }
                   3479:   create_order_spec(0,ARG2(arg),&ord);
                   3480:   do_weyl = 1;
                   3481:   dp_f4_main(f,v,ord,rp);
                   3482:   do_weyl = 0;
                   3483: }
                   3484:
                   3485: void Pdp_weyl_f4_mod_main(NODE arg,LIST *rp)
                   3486: {
                   3487:   LIST f,v;
                   3488:   int m;
                   3489:   struct order_spec *ord;
                   3490:
                   3491:   asir_assert(ARG0(arg),O_LIST,"dp_weyl_f4_main");
                   3492:   asir_assert(ARG1(arg),O_LIST,"dp_weyl_f4_main");
                   3493:   asir_assert(ARG2(arg),O_N,"dp_f4_main");
1.2       noro     3494:   f = (LIST)ARG0(arg); v = (LIST)ARG1(arg); m = ZTOS((Q)ARG2(arg));
1.1       noro     3495:   f = remove_zero_from_list(f);
                   3496:   if ( !BDY(f) ) {
                   3497:     *rp = f; return;
                   3498:   }
                   3499:   if ( !m )
                   3500:     error("dp_weyl_f4_mod_main : invalid argument");
                   3501:   create_order_spec(0,ARG3(arg),&ord);
                   3502:   do_weyl = 1;
                   3503:   dp_f4_mod_main(f,v,m,ord,rp);
                   3504:   do_weyl = 0;
                   3505: }
                   3506:
                   3507: void Pdp_weyl_gr_mod_main(NODE arg,LIST *rp)
                   3508: {
                   3509:   LIST f,v;
                   3510:   Num homo;
                   3511:   int m;
                   3512:   struct order_spec *ord;
                   3513:
                   3514:   asir_assert(ARG0(arg),O_LIST,"dp_weyl_gr_mod_main");
                   3515:   asir_assert(ARG1(arg),O_LIST,"dp_weyl_gr_mod_main");
                   3516:   asir_assert(ARG2(arg),O_N,"dp_weyl_gr_mod_main");
                   3517:   asir_assert(ARG3(arg),O_N,"dp_weyl_gr_mod_main");
                   3518:   f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
                   3519:   f = remove_zero_from_list(f);
                   3520:   if ( !BDY(f) ) {
                   3521:     *rp = f; return;
                   3522:   }
1.2       noro     3523:   homo = (Num)ARG2(arg); m = ZTOS((Q)ARG3(arg));
1.1       noro     3524:   if ( !m )
                   3525:     error("dp_weyl_gr_mod_main : invalid argument");
                   3526:   create_order_spec(0,ARG4(arg),&ord);
                   3527:   do_weyl = 1;
                   3528:   dp_gr_mod_main(f,v,homo,m,ord,rp);
                   3529:   do_weyl = 0;
                   3530: }
                   3531:
                   3532: VECT current_dl_weight_vector_obj;
                   3533: int *current_dl_weight_vector;
                   3534: int dp_negative_weight;
                   3535:
                   3536: void Pdp_set_weight(NODE arg,VECT *rp)
                   3537: {
                   3538:   VECT v;
                   3539:   int i,n;
                   3540:   NODE node;
                   3541:
                   3542:   if ( !arg )
                   3543:     *rp = current_dl_weight_vector_obj;
                   3544:   else if ( !ARG0(arg) ) {
                   3545:     current_dl_weight_vector_obj = 0;
                   3546:     current_dl_weight_vector = 0;
                   3547:         dp_negative_weight = 0;
                   3548:     *rp = 0;
                   3549:   } else {
                   3550:     if ( OID(ARG0(arg)) != O_VECT && OID(ARG0(arg)) != O_LIST )
                   3551:       error("dp_set_weight : invalid argument");
                   3552:     if ( OID(ARG0(arg)) == O_VECT )
                   3553:       v = (VECT)ARG0(arg);
                   3554:     else {
                   3555:       node = (NODE)BDY((LIST)ARG0(arg));
                   3556:       n = length(node);
                   3557:       MKVECT(v,n);
                   3558:       for ( i = 0; i < n; i++, node = NEXT(node) )
                   3559:         BDY(v)[i] = BDY(node);
                   3560:     }
                   3561:     current_dl_weight_vector_obj = v;
                   3562:     n = v->len;
                   3563:     current_dl_weight_vector = (int *)CALLOC(n,sizeof(int));
                   3564:     for ( i = 0; i < n; i++ )
1.2       noro     3565:       current_dl_weight_vector[i] = ZTOS((Q)v->body[i]);
1.1       noro     3566:         for ( i = 0; i < n; i++ )
                   3567:             if ( current_dl_weight_vector[i] < 0 ) break;
                   3568:         if ( i < n )
                   3569:             dp_negative_weight = 1;
                   3570:         else
                   3571:             dp_negative_weight = 0;
                   3572:     *rp = v;
                   3573:   }
                   3574: }
                   3575:
                   3576: VECT current_module_weight_vector_obj;
                   3577: int *current_module_weight_vector;
                   3578:
                   3579: void Pdp_set_module_weight(NODE arg,VECT *rp)
                   3580: {
                   3581:   VECT v;
                   3582:   int i,n;
                   3583:   NODE node;
                   3584:
                   3585:   if ( !arg )
                   3586:     *rp = current_module_weight_vector_obj;
                   3587:   else if ( !ARG0(arg) ) {
                   3588:     current_module_weight_vector_obj = 0;
                   3589:     current_module_weight_vector = 0;
                   3590:     *rp = 0;
                   3591:   } else {
                   3592:     if ( OID(ARG0(arg)) != O_VECT && OID(ARG0(arg)) != O_LIST )
                   3593:       error("dp_module_set_weight : invalid argument");
                   3594:     if ( OID(ARG0(arg)) == O_VECT )
                   3595:       v = (VECT)ARG0(arg);
                   3596:     else {
                   3597:       node = (NODE)BDY((LIST)ARG0(arg));
                   3598:       n = length(node);
                   3599:       MKVECT(v,n);
                   3600:       for ( i = 0; i < n; i++, node = NEXT(node) )
                   3601:         BDY(v)[i] = BDY(node);
                   3602:     }
                   3603:     current_module_weight_vector_obj = v;
                   3604:     n = v->len;
                   3605:     current_module_weight_vector = (int *)CALLOC(n,sizeof(int));
                   3606:     for ( i = 0; i < n; i++ )
1.2       noro     3607:       current_module_weight_vector[i] = ZTOS((Q)v->body[i]);
1.1       noro     3608:     *rp = v;
                   3609:   }
                   3610: }
                   3611:
                   3612: extern Obj current_top_weight;
                   3613: extern Obj nd_top_weight;
                   3614:
                   3615: void Pdp_set_top_weight(NODE arg,Obj *rp)
                   3616: {
                   3617:   VECT v;
                   3618:   MAT m;
                   3619:   Obj obj;
                   3620:   int i,j,n,id,row,col;
                   3621:   Q *mi;
                   3622:   NODE node;
                   3623:
                   3624:   if ( !arg )
                   3625:     *rp = current_top_weight;
                   3626:   else if ( !ARG0(arg) ) {
                   3627:     reset_top_weight();
                   3628:     *rp = 0;
                   3629:   } else {
                   3630:     id = OID(ARG0(arg));
                   3631:     if ( id != O_VECT && id != O_MAT && id != O_LIST )
                   3632:       error("dp_set_top_weight : invalid argument");
                   3633:     if ( id == O_LIST ) {
                   3634:       node = (NODE)BDY((LIST)ARG0(arg));
                   3635:       n = length(node);
                   3636:       MKVECT(v,n);
                   3637:       for ( i = 0; i < n; i++, node = NEXT(node) )
                   3638:         BDY(v)[i] = BDY(node);
                   3639:         obj = (Obj)v;
                   3640:     } else
                   3641:         obj = ARG0(arg);
                   3642:     if ( OID(obj) == O_VECT ) {
                   3643:       v = (VECT)obj;
                   3644:         for ( i = 0; i < v->len; i++ )
                   3645:           if ( !INT((Q)BDY(v)[i]) || sgnz((Z)BDY(v)[i]) < 0 )
                   3646:             error("dp_set_top_weight : each element must be a non-negative integer");
                   3647:     } else {
                   3648:       m = (MAT)obj; row = m->row; col = m->col;
                   3649:         for ( i = 0; i < row; i++ )
                   3650:         for ( j = 0, mi = (Q *)BDY(m)[i]; j < col; j++ )
                   3651:               if ( !INT((Q)mi[j]) || sgnz((Z)mi[j]) < 0 )
                   3652:                 error("dp_set_top_weight : each element must be a non-negative integer");
                   3653:     }
                   3654:         current_top_weight = obj;
                   3655:     nd_top_weight = obj;
                   3656:     *rp = current_top_weight;
                   3657:   }
                   3658: }
                   3659:
                   3660: LIST get_denomlist();
                   3661:
                   3662: void Pdp_get_denomlist(LIST *rp)
                   3663: {
                   3664:   *rp = get_denomlist();
                   3665: }
                   3666:
                   3667: static VECT current_weyl_weight_vector_obj;
                   3668: int *current_weyl_weight_vector;
                   3669:
                   3670: void Pdp_weyl_set_weight(NODE arg,VECT *rp)
                   3671: {
                   3672:   VECT v;
                   3673:   NODE node;
                   3674:   int i,n;
                   3675:
                   3676:   if ( !arg )
                   3677:     *rp = current_weyl_weight_vector_obj;
                   3678:   else if ( !ARG0(arg) ) {
                   3679:     current_weyl_weight_vector_obj = 0;
                   3680:     current_weyl_weight_vector = 0;
                   3681:     *rp = 0;
                   3682:   } else {
                   3683:     if ( OID(ARG0(arg)) != O_VECT && OID(ARG0(arg)) != O_LIST )
                   3684:       error("dp_weyl_set_weight : invalid argument");
                   3685:     if ( OID(ARG0(arg)) == O_VECT )
                   3686:       v = (VECT)ARG0(arg);
                   3687:     else {
                   3688:       node = (NODE)BDY((LIST)ARG0(arg));
                   3689:       n = length(node);
                   3690:       MKVECT(v,n);
                   3691:       for ( i = 0; i < n; i++, node = NEXT(node) )
                   3692:         BDY(v)[i] = BDY(node);
                   3693:     }
                   3694:     current_weyl_weight_vector_obj = v;
                   3695:     n = v->len;
                   3696:     current_weyl_weight_vector = (int *)CALLOC(n,sizeof(int));
                   3697:     for ( i = 0; i < n; i++ )
1.2       noro     3698:       current_weyl_weight_vector[i] = ZTOS((Q)v->body[i]);
1.1       noro     3699:     *rp = v;
                   3700:   }
                   3701: }
                   3702:
                   3703: NODE mono_raddec(NODE ideal);
                   3704:
                   3705: void Pdp_mono_raddec(NODE arg,LIST *rp)
                   3706: {
                   3707:   NODE ideal,rd,t,t1,r,r1,u;
                   3708:   VL vl0,vl;
                   3709:   int nv,i,bpi;
                   3710:   int *s;
                   3711:   DP dp;
                   3712:   P *v;
                   3713:   LIST l;
                   3714:
                   3715:   ideal = BDY((LIST)ARG0(arg));
                   3716:   if ( !ideal ) *rp = (LIST)ARG0(arg);
                   3717:   else {
                   3718:     t = BDY((LIST)ARG1(arg));
                   3719:     nv = length(t);
                   3720:     v = (P *)MALLOC(nv*sizeof(P));
                   3721:     for ( vl0 = 0, i = 0; t; t = NEXT(t), i++ ) {
                   3722:       NEXTVL(vl0,vl); VR(vl) = VR((P)BDY(t));
                   3723:       MKV(VR(vl),v[i]);
                   3724:     }
                   3725:     if ( vl0 ) NEXT(vl) = 0;
                   3726:     for ( t = 0, r = ideal; r; r = NEXT(r) ) {
                   3727:       ptod(CO,vl0,BDY(r),&dp); MKNODE(t1,dp,t); t = t1;
                   3728:     }
                   3729:     rd = mono_raddec(t);
                   3730:     r = 0;
                   3731:     bpi = (sizeof(int)/sizeof(char))*8;
                   3732:     for ( u = rd; u; u = NEXT(u) ) {
                   3733:       s = (int *)BDY(u);
                   3734:       for ( i = nv-1, t = 0; i >= 0; i-- )
                   3735:         if ( s[i/bpi]&(1<<(i%bpi)) ) {
                   3736:           MKNODE(t1,v[i],t); t = t1;
                   3737:         }
                   3738:       MKLIST(l,t); MKNODE(r1,l,r); r = r1;
                   3739:     }
                   3740:     MKLIST(*rp,r);
                   3741:   }
                   3742: }
                   3743:
                   3744: void Pdp_mono_reduce(NODE arg,LIST *rp)
                   3745: {
                   3746:   NODE t,t0,t1,r0,r;
                   3747:   int i,n;
                   3748:   DP m;
                   3749:   DP *a;
                   3750:
                   3751:   t0 = BDY((LIST)ARG0(arg));
                   3752:   t1 = BDY((LIST)ARG1(arg));
                   3753:   n = length(t0);
                   3754:   a = (DP *)MALLOC(n*sizeof(DP));
                   3755:   for ( i = 0; i < n; i++, t0 = NEXT(t0) ) a[i] = (DP)BDY(t0);
                   3756:   for ( t = t1; t; t = NEXT(t) ) {
                   3757:     m = (DP)BDY(t);
                   3758:     for ( i = 0; i < n; i++ )
                   3759:       if ( a[i] && dp_redble(a[i],m) ) a[i] = 0;
                   3760:   }
                   3761:   for ( i = n-1, r0 = 0; i >= 0; i-- )
                   3762:     if ( a[i] ) { NEXTNODE(r0,r); BDY(r) = a[i]; }
                   3763:   if ( r0 ) NEXT(r) = 0;
                   3764:   MKLIST(*rp,r0);
                   3765: }
                   3766:
                   3767: #define BLEN (8*sizeof(unsigned long))
                   3768:
                   3769: void showmat2(unsigned long **a,int row,int col)
                   3770: {
                   3771:   int i,j;
                   3772:
                   3773:   for ( i = 0; i < row; i++, putchar('\n') )
                   3774:     for ( j = 0; j < col; j++ )
                   3775:       if ( a[i][j/BLEN] & (1L<<(j%BLEN)) ) putchar('1');
                   3776:       else putchar('0');
                   3777: }
                   3778:
                   3779: int rref2(unsigned long **a,int row,int col)
                   3780: {
                   3781:   int i,j,k,l,s,wcol,wj;
                   3782:   unsigned long bj;
                   3783:   unsigned long *ai,*ak,*as,*t;
                   3784:   int *pivot;
                   3785:
                   3786:   wcol = (col+BLEN-1)/BLEN;
                   3787:   pivot = (int *)MALLOC_ATOMIC(row*sizeof(int));
                   3788:   i = 0;
                   3789:   for ( j = 0; j < col; j++ ) {
                   3790:     wj = j/BLEN; bj = 1L<<(j%BLEN);
                   3791:     for ( k = i; k < row; k++ )
                   3792:       if ( a[k][wj] & bj ) break;
                   3793:     if ( k == row ) continue;
                   3794:     pivot[i] = j;
                   3795:     if ( k != i ) {
                   3796:      t = a[i]; a[i] = a[k]; a[k] = t;
                   3797:     }
                   3798:     ai = a[i];
                   3799:     for ( k = i+1; k < row; k++ ) {
                   3800:       ak = a[k];
                   3801:       if ( ak[wj] & bj ) {
                   3802:         for ( l = wj; l < wcol; l++ )
                   3803:           ak[l] ^= ai[l];
                   3804:       }
                   3805:     }
                   3806:     i++;
                   3807:   }
                   3808:   for ( k = i-1; k >= 0; k-- ) {
                   3809:     j = pivot[k]; wj = j/BLEN; bj = 1L<<(j%BLEN);
                   3810:     ak = a[k];
                   3811:     for ( s = 0; s < k; s++ ) {
                   3812:       as = a[s];
                   3813:       if ( as[wj] & bj ) {
                   3814:         for ( l = wj; l < wcol; l++ )
                   3815:           as[l] ^= ak[l];
                   3816:       }
                   3817:     }
                   3818:   }
                   3819:   return i;
                   3820: }
                   3821:
                   3822: void Pdp_rref2(NODE arg,VECT *rp)
                   3823: {
                   3824:   VECT f,term,ret;
                   3825:   int row,col,wcol,size,nv,i,j,rank,td;
                   3826:   unsigned long **mat;
                   3827:   unsigned long *v;
                   3828:   DL d;
                   3829:   DL *t;
                   3830:   DP dp;
                   3831:   MP m,m0;
                   3832:
                   3833:   f = (VECT)ARG0(arg);
                   3834:   row = f->len;
                   3835:   term = (VECT)ARG1(arg);
                   3836:   col = term->len;
                   3837:   mat = (unsigned long **)MALLOC(row*sizeof(unsigned long *));
                   3838:   size = sizeof(unsigned long)*((col+BLEN-1)/BLEN);
                   3839:   nv = ((DP)term->body[0])->nv;
                   3840:   t = (DL *)MALLOC(col*sizeof(DL));
                   3841:   for ( i = 0; i < col; i++ ) t[i] = BDY((DP)BDY(term)[i])->dl;
                   3842:   for ( i = 0; i < row; i++ ) {
                   3843:     v = mat[i] = (unsigned long *)MALLOC_ATOMIC_IGNORE_OFF_PAGE(size);
                   3844:   bzero(v,size);
                   3845:   for ( j = 0, m = BDY((DP)BDY(f)[i]); m; m = NEXT(m) ) {
                   3846:     d = m->dl;
                   3847:     for ( ; !dl_equal(nv,d,t[j]); j++ );
                   3848:     v[j/BLEN] |= 1L <<(j%BLEN);
                   3849:   }
                   3850:   }
                   3851:   rank = rref2(mat,row,col);
                   3852:   MKVECT(ret,rank);
                   3853:   *rp = ret;
                   3854:   for ( i = 0; i < rank; i++ ) {
                   3855:     v = mat[i];
                   3856:   m0 = 0;
                   3857:   td = 0;
                   3858:     for ( j = 0; j < col; j++ ) {
                   3859:     if ( v[j/BLEN] & (1L<<(j%BLEN)) ) {
                   3860:       NEXTMP(m0,m);
                   3861:     m->dl = t[j];
                   3862:     m->c = (Obj)ONE;
                   3863:       td = MAX(td,m->dl->td);
                   3864:     }
                   3865:   }
                   3866:   NEXT(m) = 0;
                   3867:   MKDP(nv,m0,dp);
                   3868:   dp->sugar = td;
                   3869:     BDY(ret)[i] = (pointer)dp;
                   3870:   }
                   3871: }
                   3872:
                   3873: #define HDL(f) (BDY(f)->dl)
                   3874:
                   3875: NODE sumi_criB(int nv,NODE d,DP *f,int m)
                   3876: {
                   3877:  LIST p;
                   3878:  NODE r0,r;
                   3879:  int p0,p1;
                   3880:  DL p2,lcm;
                   3881:
                   3882:  NEWDL(lcm,nv);
                   3883:  r0 = 0;
                   3884:  for ( ; d; d = NEXT(d) ) {
                   3885:   p = (LIST)BDY(d);
1.2       noro     3886:   p0 = ZTOS((Q)ARG0(BDY(p)));
                   3887:   p1 = ZTOS((Q)ARG1(BDY(p)));
1.1       noro     3888:   p2 = HDL((DP)ARG2(BDY(p)));
                   3889:     if(!_dl_redble(HDL((DP)f[m]),p2,nv) ||
                   3890:      dl_equal(nv,lcm_of_DL(nv,HDL(f[p0]),HDL(f[m]),lcm),p2) ||
                   3891:      dl_equal(nv,lcm_of_DL(nv,HDL(f[p1]),HDL(f[m]),lcm),p2) ) {
                   3892:     NEXTNODE(r0,r);
                   3893:     BDY(r) = p;
                   3894:   }
                   3895:  }
                   3896:  if ( r0 ) NEXT(r) = 0;
                   3897:  return r0;
                   3898: }
                   3899:
                   3900: NODE sumi_criFMD(int nv,DP *f,int m)
                   3901: {
                   3902:   DL *a;
                   3903:   DL l1,dl1,dl2;
                   3904:   int i,j,k,k2;
                   3905:   NODE r,r1,nd;
                   3906:   MP mp;
                   3907:   DP u;
                   3908:   Z iq,mq;
                   3909:   LIST list;
                   3910:
                   3911:   /* a[i] = lcm(LT(f[i]),LT(f[m])) */
                   3912:   a = (DL *)ALLOCA(m*sizeof(DL));
                   3913:   for ( i = 0; i < m; i++ ) {
                   3914:    a[i] = lcm_of_DL(nv,HDL(f[i]),HDL(f[m]),0);
                   3915:   }
                   3916:   r = 0;
                   3917:   for( i = 0; i < m; i++) {
                   3918:    l1 = a[i];
                   3919:    if ( !l1 ) continue;
                   3920:    /* Tkm = Tim (k<i) */
                   3921:    for( k = 0; k < i; k++)
                   3922:      if( dl_equal(nv,l1,a[k]) ) break;
                   3923:    if( k == i ){
                   3924:      /* Tk|Tim && Tkm != Tim (k<m) */
                   3925:    for ( k2 = 0; k2 < m; k2++ )
                   3926:      if ( _dl_redble(HDL(f[k2]),l1,nv) &&
                   3927:        !dl_equal(nv,l1,a[k2]) ) break;
                   3928:    if ( k2 == m ) {
                   3929:        dl1 = HDL(f[i]); dl2 = HDL(f[m]);
                   3930:        for ( k2 = 0; k2 < nv; k2++ )
                   3931:          if ( dl1->d[k2] && dl2->d[k2] ) break;
                   3932:        if ( k2 < nv ) {
                   3933:          NEWMP(mp); mp->dl = l1; C(mp) = (Obj)ONE;
                   3934:          NEXT(mp) = 0; MKDP(nv,mp,u); u->sugar = l1->td;
1.2       noro     3935:        STOZ(i,iq); STOZ(m,mq);
1.1       noro     3936:        nd = mknode(3,iq,mq,u);
                   3937:        MKLIST(list,nd);
                   3938:        MKNODE(r1,list,r);
                   3939:        r = r1;
                   3940:     }
                   3941:   }
                   3942:    }
                   3943:  }
                   3944:  return r;
                   3945: }
                   3946:
                   3947: LIST sumi_updatepairs(LIST d,DP *f,int m)
                   3948: {
                   3949:   NODE old,new,t;
                   3950:   LIST l;
                   3951:   int nv;
                   3952:
                   3953:   nv = f[0]->nv;
                   3954:   old = sumi_criB(nv,BDY(d),f,m);
                   3955:   new = sumi_criFMD(nv,f,m);
                   3956:   if ( !new ) new = old;
                   3957:   else {
                   3958:     for ( t = new ; NEXT(t); t = NEXT(t) );
                   3959:   NEXT(t) = old;
                   3960:   }
                   3961:   MKLIST(l,new);
                   3962:   return l;
                   3963: }
                   3964:
                   3965: VECT ltov(LIST l)
                   3966: {
                   3967:   NODE n;
                   3968:   int i,len;
                   3969:   VECT v;
                   3970:
                   3971:   n = BDY(l);
                   3972:   len = length(n);
                   3973:   MKVECT(v,len);
                   3974:   for ( i = 0; i < len; i++, n = NEXT(n) )
                   3975:     BDY(v)[i] = BDY(n);
                   3976:   return v;
                   3977: }
                   3978:
                   3979: DL subdl(int nv,DL d1,DL d2)
                   3980: {
                   3981:   int i;
                   3982:   DL d;
                   3983:
                   3984:   NEWDL(d,nv);
                   3985:   d->td = d1->td-d2->td;
                   3986:   for ( i = 0; i < nv; i++ )
                   3987:     d->d[i] = d1->d[i]-d2->d[i];
                   3988:   return d;
                   3989: }
                   3990:
                   3991: DP dltodp(int nv,DL d)
                   3992: {
                   3993:   MP mp;
                   3994:   DP dp;
                   3995:
                   3996:   NEWMP(mp); mp->dl = d; C(mp) = (Obj)ONE;
                   3997:   NEXT(mp) = 0; MKDP(nv,mp,dp); dp->sugar = d->td;
                   3998:   return dp;
                   3999: }
                   4000:
                   4001: LIST sumi_simplify(int nv,DL t,DP p,NODE f2,int simp)
                   4002: {
                   4003:   DL d,h,hw;
                   4004:   DP u,w,dp;
                   4005:   int n,i,last;
                   4006:   LIST *v;
                   4007:   LIST list;
                   4008:   NODE s,r;
                   4009:
                   4010:   d = t; u = p;
                   4011:   /* only the last history is used */
                   4012:   if ( f2 && simp && t->td != 0 ) {
                   4013:     adddl(nv,t,HDL(p),&h);
                   4014:     n = length(f2);
                   4015:     last = 1;
                   4016:     if ( simp > 1 ) last = n;
                   4017:     v = (LIST *)ALLOCA(n*sizeof(LIST));
                   4018:     for ( r = f2, i = 0; r; r = NEXT(r), i++ ) v[n-i-1] = BDY(r);
                   4019:     for ( i = 0; i < last; i++ ) {
                   4020:       for ( s = BDY((LIST)v[i]); s; s = NEXT(s) ) {
                   4021:       w = (DP)BDY(s); hw = HDL(w);
                   4022:         if ( _dl_redble(hw,h,nv) ) {
                   4023:       u = w;
                   4024:       d = subdl(nv,h,hw);
                   4025:       goto fin;
                   4026:       }
                   4027:       }
                   4028:     }
                   4029:   }
                   4030: fin:
                   4031:   dp = dltodp(nv,d);
                   4032:   r = mknode(2,dp,u);
                   4033:   MKLIST(list,r);
                   4034:   return list;
                   4035: }
                   4036:
                   4037: LIST sumi_symbolic(NODE l,int q,NODE f2,DP *g,int simp)
                   4038: {
                   4039:    int nv;
                   4040:    NODE t,r;
                   4041:    NODE f0,f,fd0,fd,done0,done,red0,red;
                   4042:    DL h,d;
                   4043:    DP mul;
                   4044:    int m;
                   4045:    LIST tp,l0,l1,l2,l3,list;
                   4046:    VECT v0,v1,v2,v3;
                   4047:
                   4048:    nv = ((DP)BDY(l))->nv;
                   4049:    t = 0;
                   4050:
                   4051:    f0 = 0; fd0 = 0; done0 = 0; red0 = 0;
                   4052:
                   4053:    for ( ; l; l = NEXT(l) ) {
                   4054:      t = symb_merge(t,dp_dllist((DP)BDY(l)),nv);
                   4055:      NEXTNODE(fd0,fd); BDY(fd) = BDY(l);
                   4056:    }
                   4057:
                   4058:    while ( t ) {
                   4059:    h = (DL)BDY(t);
                   4060:    NEXTNODE(done0,done); BDY(done) = dltodp(nv,h);
                   4061:    t = NEXT(t);
                   4062:      for(m = 0; m < q; m++)
                   4063:      if ( _dl_redble(HDL(g[m]),h,nv) ) break;
                   4064:      if ( m == q ) {
                   4065:      } else {
                   4066:      d = subdl(nv,h,HDL(g[m]));
                   4067:        tp = sumi_simplify(nv,d,g[m],f2,simp);
                   4068:
                   4069:      muldm(CO,ARG1(BDY(tp)),BDY((DP)ARG0(BDY(tp))),&mul);
                   4070:        t = symb_merge(t,NEXT(dp_dllist(mul)),nv);
                   4071:
                   4072:      NEXTNODE(f0,f); BDY(f) = tp;
                   4073:      NEXTNODE(fd0,fd); BDY(fd) = mul;
                   4074:      NEXTNODE(red0,red); BDY(red) = mul;
                   4075:      }
                   4076:    }
                   4077:    if ( fd0 ) NEXT(fd) = 0; MKLIST(l0,fd0);
                   4078:    v0 = ltov(l0);
                   4079:    if ( done0 ) NEXT(done) = 0; MKLIST(l1,done0);
                   4080:    v1 = ltov(l1);
                   4081:    if ( f0 ) NEXT(f) = 0; MKLIST(l2,f0);
                   4082:    v2 = ltov(l2);
                   4083:    if ( red0 ) NEXT(red) = 0; MKLIST(l3,red0);
                   4084:    v3 = ltov(l3);
                   4085:    r = mknode(4,v0,v1,v2,v3);
                   4086:    MKLIST(list,r);
                   4087:    return list;
                   4088: }
                   4089:
                   4090: void Psumi_symbolic(NODE arg,LIST *rp)
                   4091: {
                   4092:   NODE l,f2;
                   4093:   DP *g;
                   4094:   int q,simp;
                   4095:
                   4096:   l = BDY((LIST)ARG0(arg));
1.2       noro     4097:   q = ZTOS((Q)ARG1(arg));
1.1       noro     4098:   f2 = BDY((LIST)ARG2(arg));
                   4099:   g = (DP *)BDY((VECT)ARG3(arg));
1.2       noro     4100:   simp = ZTOS((Q)ARG4(arg));
1.1       noro     4101:   *rp = sumi_symbolic(l,q,f2,g,simp);
                   4102: }
                   4103:
                   4104: void Psumi_updatepairs(NODE arg,LIST *rp)
                   4105: {
                   4106:    LIST d,l;
                   4107:    DP *f;
                   4108:    int m;
                   4109:
                   4110:    d = (LIST)ARG0(arg);
                   4111:    f = (DP *)BDY((VECT)ARG1(arg));
1.2       noro     4112:    m = ZTOS((Q)ARG2(arg));
1.1       noro     4113:    *rp = sumi_updatepairs(d,f,m);
                   4114: }
                   4115:
                   4116: LIST remove_zero_from_list(LIST l)
                   4117: {
                   4118:   NODE n,r0,r;
                   4119:   LIST rl;
                   4120:
                   4121:   asir_assert(l,O_LIST,"remove_zero_from_list");
                   4122:   n = BDY(l);
                   4123:   for ( r0 = 0; n; n = NEXT(n) )
                   4124:     if ( BDY(n) ) {
                   4125:       NEXTNODE(r0,r);
                   4126:       BDY(r) = BDY(n);
                   4127:     }
                   4128:   if ( r0 )
                   4129:     NEXT(r) = 0;
                   4130:   MKLIST(rl,r0);
                   4131:   return rl;
                   4132: }
                   4133:
                   4134: int get_field_type(P p)
                   4135: {
                   4136:   int type,t;
                   4137:   DCP dc;
                   4138:
                   4139:   if ( !p )
                   4140:     return 0;
                   4141:   else if ( NUM(p) )
                   4142:     return NID((Num)p);
                   4143:   else {
                   4144:     type = 0;
                   4145:     for ( dc = DC(p); dc; dc = NEXT(dc) ) {
                   4146:       t = get_field_type(COEF(dc));
                   4147:       if ( !t )
                   4148:         continue;
                   4149:       if ( t < 0 )
                   4150:         return t;
                   4151:       if ( !type )
                   4152:         type = t;
                   4153:       else if ( t != type )
                   4154:         return -1;
                   4155:     }
                   4156:     return type;
                   4157:   }
                   4158: }
                   4159:
                   4160: void Pdpv_ord(NODE arg,Obj *rp)
                   4161: {
                   4162:   int ac,id;
                   4163:   LIST shift;
                   4164:
                   4165:   ac = argc(arg);
                   4166:   if ( ac ) {
1.2       noro     4167:     id = ZTOS((Q)ARG0(arg));
1.1       noro     4168:     if ( ac > 1 && ARG1(arg) && OID((Obj)ARG1(arg))==O_LIST )
                   4169:       shift = (LIST)ARG1(arg);
                   4170:     else
                   4171:       shift = 0;
                   4172:     create_modorder_spec(id,shift,&dp_current_modspec);
                   4173:   }
                   4174:   *rp = dp_current_modspec->obj;
                   4175: }
                   4176:
1.9       noro     4177: extern int dpm_ordtype;
1.15      noro     4178: extern DMMstack dmm_stack;
1.9       noro     4179:
1.11      noro     4180: void set_schreyer_order(LIST n);
1.1       noro     4181:
1.10      noro     4182: void Pdpm_set_schreyer(NODE arg,LIST *rp)
1.1       noro     4183: {
1.9       noro     4184:   if ( argc(arg) ) {
1.17      noro     4185:     set_schreyer_order(ARG0(arg)?(LIST)ARG0(arg):0);
1.1       noro     4186:   }
1.17      noro     4187:   if ( dmm_stack )
                   4188:     *rp = dmm_stack->obj;
                   4189:   else
                   4190:     *rp = 0;
1.1       noro     4191: }
                   4192:
1.18      noro     4193: DMMstack_array Schreyer_Frame;
1.23      noro     4194: DMMstack_array dpm_schreyer_frame(NODE n,int lex);
1.18      noro     4195: void set_schreyer_level(DMMstack_array array,int level);
                   4196:
                   4197: void Pdpm_set_schreyer_level(NODE arg,Q *rp)
                   4198: {
                   4199:   set_schreyer_level(Schreyer_Frame,ZTOS((Q)ARG0(arg)));
                   4200:   *rp = (Q)ARG0(arg);
                   4201: }
                   4202:
                   4203: void Pdpm_schreyer_frame(NODE arg,LIST *rp)
                   4204: {
                   4205:   DMMstack_array a;
                   4206:   DMMstack *body;
1.20      noro     4207:   DMM *in,*sum;
                   4208:   DPM f,s;
                   4209:   NODE b,b1,nd;
1.18      noro     4210:   LIST l;
1.20      noro     4211:   VECT v;
                   4212:   Z lev,deg,ind;
1.23      noro     4213:   int len,i,nv,rank,j,lex;
                   4214:   NODE tt,p;
                   4215:   char *key;
                   4216:   Obj value;
1.18      noro     4217:
1.23      noro     4218:   lex = 0;
                   4219:   if ( current_option ) {
                   4220:     for ( tt = current_option; tt; tt = NEXT(tt) ) {
                   4221:       p = BDY((LIST)BDY(tt));
                   4222:       key = BDY((STRING)BDY(p));
                   4223:       value = (Obj)BDY(NEXT(p));
                   4224:       if ( !strcmp(key,"lex") )
                   4225:         lex = value!=0?1:0;
                   4226:       else {
                   4227:         error("dpm_schreyer_frame: unknown option.");
                   4228:       }
                   4229:     }
                   4230:   }
                   4231:   Schreyer_Frame = a = dpm_schreyer_frame(BDY((LIST)ARG0(arg)),lex);
1.18      noro     4232:   len = a->len;
                   4233:   body = a->body;
1.20      noro     4234:   /* XXX */
                   4235:   nv = ((DPM)BDY(BDY((LIST)body[0]->obj)))->nv;
1.18      noro     4236:   b = 0;
                   4237:   for ( i = 0; i < len; i++ ) {
1.20      noro     4238:     rank = body[i]->rank;
                   4239:     in = body[i]->in;
                   4240:     sum = body[i]->sum;
                   4241:     MKVECT(v,rank+1);
                   4242:     STOZ(i+1,lev);
                   4243:     for ( j = 1; j <= rank; j++ ) {
                   4244:       MKDPM(nv,in[j],f); f->sugar = in[j]->dl->td;
                   4245:       MKDPM(nv,sum[j],s);s->sugar = sum[j]->dl->td;
                   4246:       STOZ(s->sugar,deg);
                   4247:       STOZ(j,ind);
                   4248:       nd = mknode(5,f,s,ind,lev,deg);
                   4249:       MKLIST(l,nd);
                   4250:       BDY(v)[j] = (pointer)l;
                   4251:     }
                   4252:     MKNODE(b1,(pointer)v,b);
1.18      noro     4253:     b = b1;
                   4254:   }
                   4255:   MKLIST(l,b);
                   4256:   *rp = l;
                   4257: }
                   4258:
                   4259:
1.1       noro     4260: void Pdpm_hm(NODE arg,DPM *rp)
                   4261: {
                   4262:   DPM p;
                   4263:
                   4264:   p = (DPM)ARG0(arg); asir_assert(p,O_DPM,"dpm_hm");
                   4265:   dpm_hm(p,rp);
                   4266: }
                   4267:
                   4268: void Pdpm_ht(NODE arg,DPM *rp)
                   4269: {
                   4270:   DPM p;
                   4271:
1.9       noro     4272:   p = (DPM)ARG0(arg); asir_assert(p,O_DPM,"dpm_ht");
1.1       noro     4273:   dpm_ht(p,rp);
                   4274: }
                   4275:
1.10      noro     4276: void dpm_rest(DPM p,DPM *r);
                   4277:
                   4278: void Pdpm_rest(NODE arg,DPM *rp)
                   4279: {
                   4280:   DPM p;
                   4281:
                   4282:   p = (DPM)ARG0(arg); asir_assert(p,O_DPM,"dpm_ht");
                   4283:   dpm_rest(p,rp);
                   4284: }
                   4285:
                   4286:
                   4287: void Pdpm_hp(NODE arg,Z *rp)
                   4288: {
                   4289:   DPM p;
                   4290:   int pos;
                   4291:
                   4292:   p = (DPM)ARG0(arg); asir_assert(p,O_DPM,"dpm_ht");
                   4293:   pos = BDY(p)->pos;
                   4294:   STOZ(pos,*rp);
                   4295: }
                   4296:
1.9       noro     4297: void dpm_shift(DPM p,int s,DPM *rp);
                   4298:
                   4299: void Pdpm_shift(NODE arg,DPM *rp)
                   4300: {
                   4301:   DPM p;
                   4302:   int s;
                   4303:
                   4304:   p = (DPM)ARG0(arg); asir_assert(p,O_DPM,"dpm_shift");
                   4305:   s = ZTOS((Z)ARG1(arg));
                   4306:   dpm_shift(p,s,rp);
                   4307: }
                   4308:
                   4309: void dpm_sort(DPM p,DPM *rp);
                   4310:
                   4311: void Pdpm_sort(NODE arg,DPM *rp)
                   4312: {
                   4313:   DPM p;
                   4314:   int s;
                   4315:
1.10      noro     4316:   p = (DPM)ARG0(arg);
                   4317:   if ( !p ) *rp = 0;
1.21      noro     4318:   else dpm_sort(p,rp);
1.9       noro     4319: }
                   4320:
                   4321: void dpm_split(DPM p,int s,DPM *up,DPM *lo);
1.21      noro     4322: void dpm_extract(DPM p,int s,DP *r);
1.9       noro     4323:
                   4324: void Pdpm_split(NODE arg,LIST *rp)
                   4325: {
                   4326:   DPM p,up,lo;
                   4327:   int s;
                   4328:   NODE nd;
                   4329:
1.10      noro     4330:   p = (DPM)ARG0(arg);
1.9       noro     4331:   s = ZTOS((Z)ARG1(arg));
                   4332:   dpm_split(p,s,&up,&lo);
                   4333:   nd = mknode(2,up,lo);
                   4334:   MKLIST(*rp,nd);
                   4335: }
                   4336:
1.21      noro     4337: void Pdpm_extract(NODE arg,DP *rp)
                   4338: {
                   4339:   DPM p;
                   4340:   int s;
                   4341:
                   4342:   p = (DPM)ARG0(arg);
                   4343:   s = ZTOS((Z)ARG1(arg));
                   4344:   dpm_extract(p,s,rp);
                   4345: }
                   4346:
1.9       noro     4347:
1.13      noro     4348: void Pdpm_hc(NODE arg,DP *rp)
1.1       noro     4349: {
1.13      noro     4350:   DPM p;
                   4351:   DP d;
                   4352:   MP m;
                   4353:
1.1       noro     4354:   asir_assert(ARG0(arg),O_DPM,"dpm_hc");
                   4355:   if ( !ARG0(arg) )
                   4356:     *rp = 0;
1.13      noro     4357:   else {
                   4358:     p = (DPM)ARG0(arg);
                   4359:     NEWMP(m);
                   4360:     m->dl = BDY(p)->dl;
                   4361:     m->c = BDY(p)->c;
                   4362:     NEXT(m) = 0;
                   4363:     MKDP(NV(p),m,d); d->sugar = p->sugar;
                   4364:     *rp = d;
                   4365:   }
1.1       noro     4366: }
                   4367:
                   4368: void Pdpv_ht(NODE arg,LIST *rp)
                   4369: {
                   4370:   NODE n;
                   4371:   DP ht;
                   4372:   int pos;
                   4373:   DPV p;
                   4374:   Z q;
                   4375:
                   4376:   asir_assert(ARG0(arg),O_DPV,"dpv_ht");
                   4377:   p = (DPV)ARG0(arg);
                   4378:   pos = dpv_hp(p);
                   4379:   if ( pos < 0 )
                   4380:     ht = 0;
                   4381:   else
                   4382:     dp_ht(BDY(p)[pos],&ht);
1.2       noro     4383:   STOZ(pos,q);
1.1       noro     4384:   n = mknode(2,q,ht);
                   4385:   MKLIST(*rp,n);
                   4386: }
                   4387:
                   4388: void Pdpv_hm(NODE arg,LIST *rp)
                   4389: {
                   4390:   NODE n;
                   4391:   DP ht;
                   4392:   int pos;
                   4393:   DPV p;
                   4394:   Z q;
                   4395:
                   4396:   asir_assert(ARG0(arg),O_DPV,"dpv_hm");
                   4397:   p = (DPV)ARG0(arg);
                   4398:   pos = dpv_hp(p);
                   4399:   if ( pos < 0 )
                   4400:     ht = 0;
                   4401:   else
                   4402:     dp_hm(BDY(p)[pos],&ht);
1.2       noro     4403:   STOZ(pos,q);
1.1       noro     4404:   n = mknode(2,q,ht);
                   4405:   MKLIST(*rp,n);
                   4406: }
                   4407:
                   4408: void Pdpv_hc(NODE arg,LIST *rp)
                   4409: {
                   4410:   NODE n;
                   4411:   P hc;
                   4412:   int pos;
                   4413:   DPV p;
                   4414:   Z q;
                   4415:
                   4416:   asir_assert(ARG0(arg),O_DPV,"dpv_hc");
                   4417:   p = (DPV)ARG0(arg);
                   4418:   pos = dpv_hp(p);
                   4419:   if ( pos < 0 )
                   4420:     hc = 0;
                   4421:   else
                   4422:     hc = (P)BDY(BDY(p)[pos])->c;
1.2       noro     4423:   STOZ(pos,q);
1.1       noro     4424:   n = mknode(2,q,hc);
                   4425:   MKLIST(*rp,n);
                   4426: }
                   4427:
                   4428: int dpv_hp(DPV p)
                   4429: {
                   4430:   int len,i,maxp,maxw,w,slen;
                   4431:   int *shift;
                   4432:   DP *e;
                   4433:
                   4434:   len = p->len;
                   4435:   e = p->body;
                   4436:   slen = dp_current_modspec->len;
                   4437:   shift = dp_current_modspec->degree_shift;
                   4438:   switch ( dp_current_modspec->id ) {
                   4439:     case ORD_REVGRADLEX:
                   4440:       for ( maxp = -1, i = 0; i < len; i++ )
                   4441:         if ( !e[i] ) continue;
                   4442:         else if ( maxp < 0 ) {
                   4443:           maxw = BDY(e[i])->dl->td+(i<slen?shift[i]:0); maxp = i;
                   4444:         } else {
                   4445:           w = BDY(e[i])->dl->td+(i<slen?shift[i]:0);
                   4446:           if ( w >= maxw ) {
                   4447:             maxw = w; maxp = i;
                   4448:           }
                   4449:         }
                   4450:       return maxp;
                   4451:     case ORD_GRADLEX:
                   4452:       for ( maxp = -1, i = 0; i < len; i++ )
                   4453:         if ( !e[i] ) continue;
                   4454:         else if ( maxp < 0 ) {
                   4455:           maxw = BDY(e[i])->dl->td+(i<slen?shift[i]:0); maxp = i;
                   4456:         } else {
                   4457:           w = BDY(e[i])->dl->td+(i<slen?shift[i]:0);
                   4458:           if ( w > maxw ) {
                   4459:             maxw = w; maxp = i;
                   4460:           }
                   4461:         }
                   4462:       return maxp;
                   4463:       break;
                   4464:     case ORD_LEX:
                   4465:       for ( i = 0; i < len; i++ )
                   4466:         if ( e[i] ) return i;
                   4467:       return -1;
                   4468:       break;
1.9       noro     4469:     default:
                   4470:       error("dpv_hp : unsupported term ordering");
                   4471:       return -1;
                   4472:       break;
1.1       noro     4473:   }
                   4474: }
                   4475:
                   4476: int get_opt(char *key0,Obj *r) {
                   4477:    NODE tt,p;
                   4478:    char *key;
                   4479:
                   4480:    if ( current_option ) {
                   4481:      for ( tt = current_option; tt; tt = NEXT(tt) ) {
                   4482:        p = BDY((LIST)BDY(tt));
                   4483:        key = BDY((STRING)BDY(p));
                   4484:        /*  value = (Obj)BDY(NEXT(p)); */
                   4485:        if ( !strcmp(key,key0) )  {
                   4486:        *r = (Obj)BDY(NEXT(p));
                   4487:        return 1;
                   4488:      }
                   4489:      }
                   4490:    }
                   4491:    return 0;
                   4492: }

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