/*
* Copyright (c) 1994-2000 FUJITSU LABORATORIES LIMITED
* All rights reserved.
*
* FUJITSU LABORATORIES LIMITED ("FLL") hereby grants you a limited,
* non-exclusive and royalty-free license to use, copy, modify and
* redistribute, solely for non-commercial and non-profit purposes, the
* computer program, "Risa/Asir" ("SOFTWARE"), subject to the terms and
* conditions of this Agreement. For the avoidance of doubt, you acquire * only a limited right to use the SOFTWARE hereunder, and FLL or any
* third party developer retains all rights, including but not limited to
* copyrights, in and to the SOFTWARE.
*
* (1) FLL does not grant you a license in any way for commercial
* purposes. You may use the SOFTWARE only for non-commercial and
* non-profit purposes only, such as academic, research and internal
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* international copyright treaties. If you make copies of the SOFTWARE,
* with or without modification, as permitted hereunder, you shall affix
* to all such copies of the SOFTWARE the above copyright notice.
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* shall be made on your publication or presentation in any form of the
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* EXPRESSLY DISCLAIMS ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS
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*
* $OpenXM: OpenXM_contrib2/asir2000/builtin/dp.c,v 1.90 2013/09/09 09:47:09 noro Exp $
*/
#include "ca.h"
#include "base.h"
#include "parse.h"
extern int dp_fcoeffs;
extern int dp_nelim;
extern int dp_order_pair_length;
extern struct order_pair *dp_order_pair;
extern struct order_spec *dp_current_spec;
extern struct modorder_spec *dp_current_modspec;
int do_weyl;
void Pdp_sort();
void Pdp_mul_trunc(),Pdp_quo();
void Pdp_ord(), Pdp_ptod(), Pdp_dtop(), Phomogenize();
void Pdp_ptozp(), Pdp_ptozp2(), Pdp_red(), Pdp_red2(), Pdp_lcm(), Pdp_redble();
void Pdp_sp(), Pdp_hm(), Pdp_ht(), Pdp_hc(), Pdp_rest(), Pdp_td(), Pdp_sugar();
void Pdp_set_sugar();
void Pdp_cri1(),Pdp_cri2(),Pdp_subd(),Pdp_mod(),Pdp_red_mod(),Pdp_tdiv();
void Pdp_prim(),Pdp_red_coef(),Pdp_mag(),Pdp_set_kara(),Pdp_rat();
void Pdp_nf(),Pdp_true_nf(),Pdp_true_nf_marked(),Pdp_true_nf_marked_mod();
void Pdp_true_nf_and_quotient_marked(),Pdp_true_nf_and_quotient_marked_mod();
void Pdp_nf_mod(),Pdp_true_nf_mod();
void Pdp_criB(),Pdp_nelim();
void Pdp_minp(),Pdp_sp_mod();
void Pdp_homo(),Pdp_dehomo();
void Pdp_gr_mod_main(),Pdp_gr_f_main();
void Pdp_gr_main(),Pdp_gr_hm_main(),Pdp_gr_d_main(),Pdp_gr_flags();
void Pdp_interreduce();
void Pdp_f4_main(),Pdp_f4_mod_main(),Pdp_f4_f_main();
void Pdp_gr_print();
void Pdp_mbase(),Pdp_lnf_mod(),Pdp_nf_tab_mod(),Pdp_mdtod(), Pdp_nf_tab_f();
void Pdp_vtoe(), Pdp_etov(), Pdp_dtov(), Pdp_idiv(), Pdp_sep();
void Pdp_cont();
void Pdp_gr_checklist();
void Pdp_ltod(),Pdpv_ord(),Pdpv_ht(),Pdpv_hm(),Pdpv_hc();
void Pdp_weyl_red();
void Pdp_weyl_sp();
void Pdp_weyl_nf(),Pdp_weyl_nf_mod();
void Pdp_weyl_gr_main(),Pdp_weyl_gr_mod_main(),Pdp_weyl_gr_f_main();
void Pdp_weyl_f4_main(),Pdp_weyl_f4_mod_main(),Pdp_weyl_f4_f_main();
void Pdp_weyl_mul(),Pdp_weyl_mul_mod();
void Pdp_weyl_set_weight();
void Pdp_set_weight(),Pdp_set_top_weight(),Pdp_set_module_weight();
void Pdp_nf_f(),Pdp_weyl_nf_f();
void Pdp_lnf_f();
void Pnd_gr(),Pnd_gr_trace(),Pnd_f4(),Pnd_f4_trace();
void Pnd_gr_postproc(), Pnd_weyl_gr_postproc();
void Pnd_gr_recompute_trace(), Pnd_btog();
void Pnd_weyl_gr(),Pnd_weyl_gr_trace();
void Pnd_nf(),Pnd_weyl_nf();
void Pdp_initial_term();
void Pdp_order();
void Pdp_inv_or_split();
void Pdp_compute_last_t();
void Pdp_compute_last_w();
void Pdp_compute_essential_df();
void Pdp_get_denomlist();
void Pdp_symb_add();
void Pdp_mono_raddec();
void Pdp_mono_reduce();
LIST dp_initial_term();
LIST dp_order();
void parse_gr_option(LIST f,NODE opt,LIST *v,Num *homo,
int *modular,struct order_spec **ord);
NODE dp_inv_or_split(NODE gb,DP f,struct order_spec *spec, DP *inv);
LIST remove_zero_from_list(LIST);
struct ftab dp_tab[] = {
/* content reduction */
{"dp_ptozp",Pdp_ptozp,1},
{"dp_ptozp2",Pdp_ptozp2,2},
{"dp_prim",Pdp_prim,1},
{"dp_red_coef",Pdp_red_coef,2},
{"dp_cont",Pdp_cont,1},
/* polynomial ring */
/* special operations */
{"dp_mul_trunc",Pdp_mul_trunc,3},
{"dp_quo",Pdp_quo,2},
/* s-poly */
{"dp_sp",Pdp_sp,2},
{"dp_sp_mod",Pdp_sp_mod,3},
/* m-reduction */
{"dp_red",Pdp_red,3},
{"dp_red_mod",Pdp_red_mod,4},
/* normal form */
{"dp_nf",Pdp_nf,4},
{"dp_nf_f",Pdp_nf_f,4},
{"dp_true_nf",Pdp_true_nf,4},
{"dp_true_nf_marked",Pdp_true_nf_marked,4},
{"dp_true_nf_and_quotient_marked",Pdp_true_nf_and_quotient_marked,4},
{"dp_true_nf_and_quotient_marked_mod",Pdp_true_nf_and_quotient_marked_mod,5},
{"dp_true_nf_marked_mod",Pdp_true_nf_marked_mod,5},
{"dp_nf_mod",Pdp_nf_mod,5},
{"dp_true_nf_mod",Pdp_true_nf_mod,5},
{"dp_lnf_mod",Pdp_lnf_mod,3},
{"dp_nf_tab_f",Pdp_nf_tab_f,2},
{"dp_nf_tab_mod",Pdp_nf_tab_mod,3},
{"dp_lnf_f",Pdp_lnf_f,2},
/* Buchberger algorithm */
{"dp_gr_main",Pdp_gr_main,-5},
{"dp_interreduce",Pdp_interreduce,3},
{"dp_gr_mod_main",Pdp_gr_mod_main,5},
{"dp_gr_f_main",Pdp_gr_f_main,4},
{"dp_gr_checklist",Pdp_gr_checklist,2},
{"nd_f4",Pnd_f4,4},
{"nd_gr",Pnd_gr,4},
{"nd_gr_trace",Pnd_gr_trace,5},
{"nd_f4_trace",Pnd_f4_trace,5},
{"nd_gr_postproc",Pnd_gr_postproc,5},
#if 0
{"nd_gr_recompute_trace",Pnd_gr_recompute_trace,5},
#endif
{"nd_btog",Pnd_btog,-6},
{"nd_weyl_gr_postproc",Pnd_weyl_gr_postproc,5},
{"nd_weyl_gr",Pnd_weyl_gr,4},
{"nd_weyl_gr_trace",Pnd_weyl_gr_trace,5},
{"nd_nf",Pnd_nf,5},
{"nd_weyl_nf",Pnd_weyl_nf,5},
/* F4 algorithm */
{"dp_f4_main",Pdp_f4_main,3},
{"dp_f4_mod_main",Pdp_f4_mod_main,4},
/* weyl algebra */
/* multiplication */
{"dp_weyl_mul",Pdp_weyl_mul,2},
{"dp_weyl_mul_mod",Pdp_weyl_mul_mod,3},
/* s-poly */
{"dp_weyl_sp",Pdp_weyl_sp,2},
/* m-reduction */
{"dp_weyl_red",Pdp_weyl_red,3},
/* normal form */
{"dp_weyl_nf",Pdp_weyl_nf,4},
{"dp_weyl_nf_mod",Pdp_weyl_nf_mod,5},
{"dp_weyl_nf_f",Pdp_weyl_nf_f,4},
/* Buchberger algorithm */
{"dp_weyl_gr_main",Pdp_weyl_gr_main,-5},
{"dp_weyl_gr_mod_main",Pdp_weyl_gr_mod_main,5},
{"dp_weyl_gr_f_main",Pdp_weyl_gr_f_main,4},
/* F4 algorithm */
{"dp_weyl_f4_main",Pdp_weyl_f4_main,3},
{"dp_weyl_f4_mod_main",Pdp_weyl_f4_mod_main,4},
/* misc */
{"dp_inv_or_split",Pdp_inv_or_split,3},
{"dp_set_weight",Pdp_set_weight,-1},
{"dp_set_module_weight",Pdp_set_module_weight,-1},
{"dp_set_top_weight",Pdp_set_top_weight,-1},
{"dp_weyl_set_weight",Pdp_weyl_set_weight,-1},
{"dp_get_denomlist",Pdp_get_denomlist,0},
{0,0,0},
};
struct ftab dp_supp_tab[] = {
/* setting flags */
{"dp_sort",Pdp_sort,1},
{"dp_ord",Pdp_ord,-1},
{"dpv_ord",Pdpv_ord,-2},
{"dp_set_kara",Pdp_set_kara,-1},
{"dp_nelim",Pdp_nelim,-1},
{"dp_gr_flags",Pdp_gr_flags,-1},
{"dp_gr_print",Pdp_gr_print,-1},
/* converters */
{"homogenize",Phomogenize,3},
{"dp_ptod",Pdp_ptod,-2},
{"dp_dtop",Pdp_dtop,2},
{"dp_homo",Pdp_homo,1},
{"dp_dehomo",Pdp_dehomo,1},
{"dp_etov",Pdp_etov,1},
{"dp_vtoe",Pdp_vtoe,1},
{"dp_dtov",Pdp_dtov,1},
{"dp_mdtod",Pdp_mdtod,1},
{"dp_mod",Pdp_mod,3},
{"dp_rat",Pdp_rat,1},
{"dp_ltod",Pdp_ltod,-2},
/* criteria */
{"dp_cri1",Pdp_cri1,2},
{"dp_cri2",Pdp_cri2,2},
{"dp_criB",Pdp_criB,3},
/* simple operation */
{"dp_subd",Pdp_subd,2},
{"dp_lcm",Pdp_lcm,2},
{"dp_hm",Pdp_hm,1},
{"dp_ht",Pdp_ht,1},
{"dp_hc",Pdp_hc,1},
{"dpv_hm",Pdpv_hm,1},
{"dpv_ht",Pdpv_ht,1},
{"dpv_hc",Pdpv_hc,1},
{"dp_rest",Pdp_rest,1},
{"dp_initial_term",Pdp_initial_term,1},
{"dp_order",Pdp_order,1},
{"dp_symb_add",Pdp_symb_add,2},
/* degree and size */
{"dp_td",Pdp_td,1},
{"dp_mag",Pdp_mag,1},
{"dp_sugar",Pdp_sugar,1},
{"dp_set_sugar",Pdp_set_sugar,2},
/* misc */
{"dp_mbase",Pdp_mbase,1},
{"dp_redble",Pdp_redble,2},
{"dp_sep",Pdp_sep,2},
{"dp_idiv",Pdp_idiv,2},
{"dp_tdiv",Pdp_tdiv,2},
{"dp_minp",Pdp_minp,2},
{"dp_compute_last_w",Pdp_compute_last_w,5},
{"dp_compute_last_t",Pdp_compute_last_t,5},
{"dp_compute_essential_df",Pdp_compute_essential_df,2},
{"dp_mono_raddec",Pdp_mono_raddec,2},
{"dp_mono_reduce",Pdp_mono_reduce,2},
{0,0,0}
};
NODE compute_last_w(NODE g,NODE gh,int n,int **v,int row1,int **m1,int row2,int **m2);
Q compute_last_t(NODE g,NODE gh,Q t,VECT w1,VECT w2,NODE *homo,VECT *wp);
void Pdp_compute_last_t(NODE arg,LIST *rp)
{
NODE g,gh,homo,n;
LIST hlist;
VECT v1,v2,w;
Q t;
g = (NODE)BDY((LIST)ARG0(arg));
gh = (NODE)BDY((LIST)ARG1(arg));
t = (Q)ARG2(arg);
v1 = (VECT)ARG3(arg);
v2 = (VECT)ARG4(arg);
t = compute_last_t(g,gh,t,v1,v2,&homo,&w);
MKLIST(hlist,homo);
n = mknode(3,t,w,hlist);
MKLIST(*rp,n);
}
void Pdp_compute_last_w(NODE arg,LIST *rp)
{
NODE g,gh,r;
VECT w,rv;
LIST l;
MAT w1,w2;
int row1,row2,i,j,n;
int *v;
int **m1,**m2;
Q q;
g = (NODE)BDY((LIST)ARG0(arg));
gh = (NODE)BDY((LIST)ARG1(arg));
w = (VECT)ARG2(arg);
w1 = (MAT)ARG3(arg);
w2 = (MAT)ARG4(arg);
n = w1->col;
row1 = w1->row;
row2 = w2->row;
if ( w ) {
v = W_ALLOC(n);
for ( i = 0; i < n; i++ ) v[i] = QTOS((Q)w->body[i]);
} else v = 0;
m1 = almat(row1,n);
for ( i = 0; i < row1; i++ )
for ( j = 0; j < n; j++ ) m1[i][j] = QTOS((Q)w1->body[i][j]);
m2 = almat(row2,n);
for ( i = 0; i < row2; i++ )
for ( j = 0; j < n; j++ ) m2[i][j] = QTOS((Q)w2->body[i][j]);
r = compute_last_w(g,gh,n,&v,row1,m1,row2,m2);
if ( !r ) *rp = 0;
else {
MKVECT(rv,n);
for ( i = 0; i < n; i++ ) {
STOQ(v[i],q); rv->body[i] = (pointer)q;
}
MKLIST(l,r);
r = mknode(2,rv,l);
MKLIST(*rp,r);
}
}
NODE compute_essential_df(DP *g,DP *gh,int n);
void Pdp_compute_essential_df(NODE arg,LIST *rp)
{
VECT g,gh;
NODE r;
g = (VECT)ARG0(arg);
gh = (VECT)ARG1(arg);
r = (NODE)compute_essential_df((DP *)BDY(g),(DP *)BDY(gh),g->len);
MKLIST(*rp,r);
}
void Pdp_inv_or_split(arg,rp)
NODE arg;
Obj *rp;
{
NODE gb,newgb;
DP f,inv;
struct order_spec *spec;
LIST list;
do_weyl = 0; dp_fcoeffs = 0;
asir_assert(ARG0(arg),O_LIST,"dp_inv_or_split");
asir_assert(ARG1(arg),O_DP,"dp_inv_or_split");
if ( !create_order_spec(0,(Obj)ARG2(arg),&spec) )
error("dp_inv_or_split : invalid order specification");
gb = BDY((LIST)ARG0(arg));
f = (DP)ARG1(arg);
newgb = (NODE)dp_inv_or_split(gb,f,spec,&inv);
if ( !newgb ) {
/* invertible */
*rp = (Obj)inv;
} else {
MKLIST(list,newgb);
*rp = (Obj)list;
}
}
void Pdp_sort(arg,rp)
NODE arg;
DP *rp;
{
dp_sort((DP)ARG0(arg),rp);
}
void Pdp_mdtod(arg,rp)
NODE arg;
DP *rp;
{
MP m,mr,mr0;
DP p;
P t;
p = (DP)ARG0(arg);
if ( !p )
*rp = 0;
else {
for ( mr0 = 0, m = BDY(p); m; m = NEXT(m) ) {
mptop(m->c,&t); NEXTMP(mr0,mr); mr->c = t; mr->dl = m->dl;
}
NEXT(mr) = 0; MKDP(p->nv,mr0,*rp); (*rp)->sugar = p->sugar;
}
}
void Pdp_sep(arg,rp)
NODE arg;
VECT *rp;
{
DP p,r;
MP m,t;
MP *w0,*w;
int i,n,d,nv,sugar;
VECT v;
pointer *pv;
p = (DP)ARG0(arg); m = BDY(p);
d = QTOS((Q)ARG1(arg));
for ( t = m, n = 0; t; t = NEXT(t), n++ );
if ( d > n )
d = n;
MKVECT(v,d); *rp = v;
pv = BDY(v); nv = p->nv; sugar = p->sugar;
w0 = (MP *)MALLOC(d*sizeof(MP)); bzero(w0,d*sizeof(MP));
w = (MP *)MALLOC(d*sizeof(MP)); bzero(w,d*sizeof(MP));
for ( t = BDY(p), i = 0; t; t = NEXT(t), i++, i %= d ) {
NEXTMP(w0[i],w[i]); w[i]->c = t->c; w[i]->dl = t->dl;
}
for ( i = 0; i < d; i++ ) {
NEXT(w[i]) = 0; MKDP(nv,w0[i],r); r->sugar = sugar;
pv[i] = (pointer)r;
}
}
void Pdp_idiv(arg,rp)
NODE arg;
DP *rp;
{
dp_idiv((DP)ARG0(arg),(Q)ARG1(arg),rp);
}
void Pdp_cont(arg,rp)
NODE arg;
Q *rp;
{
dp_cont((DP)ARG0(arg),rp);
}
void Pdp_dtov(arg,rp)
NODE arg;
VECT *rp;
{
dp_dtov((DP)ARG0(arg),rp);
}
void Pdp_mbase(arg,rp)
NODE arg;
LIST *rp;
{
NODE mb;
asir_assert(ARG0(arg),O_LIST,"dp_mbase");
dp_mbase(BDY((LIST)ARG0(arg)),&mb);
MKLIST(*rp,mb);
}
void Pdp_etov(arg,rp)
NODE arg;
VECT *rp;
{
DP dp;
int n,i;
int *d;
VECT v;
Q t;
dp = (DP)ARG0(arg);
asir_assert(dp,O_DP,"dp_etov");
n = dp->nv; d = BDY(dp)->dl->d;
MKVECT(v,n);
for ( i = 0; i < n; i++ ) {
STOQ(d[i],t); v->body[i] = (pointer)t;
}
*rp = v;
}
void Pdp_vtoe(arg,rp)
NODE arg;
DP *rp;
{
DP dp;
DL dl;
MP m;
int n,i,td;
int *d;
VECT v;
v = (VECT)ARG0(arg);
asir_assert(v,O_VECT,"dp_vtoe");
n = v->len;
NEWDL(dl,n); d = dl->d;
for ( i = 0, td = 0; i < n; i++ ) {
d[i] = QTOS((Q)(v->body[i])); td += MUL_WEIGHT(d[i],i);
}
dl->td = td;
NEWMP(m); m->dl = dl; m->c = (P)ONE; NEXT(m) = 0;
MKDP(n,m,dp); dp->sugar = td;
*rp = dp;
}
void Pdp_lnf_mod(arg,rp)
NODE arg;
LIST *rp;
{
DP r1,r2;
NODE b,g,n;
int mod;
asir_assert(ARG0(arg),O_LIST,"dp_lnf_mod");
asir_assert(ARG1(arg),O_LIST,"dp_lnf_mod");
asir_assert(ARG2(arg),O_N,"dp_lnf_mod");
b = BDY((LIST)ARG0(arg)); g = BDY((LIST)ARG1(arg));
mod = QTOS((Q)ARG2(arg));
dp_lnf_mod((DP)BDY(b),(DP)BDY(NEXT(b)),g,mod,&r1,&r2);
NEWNODE(n); BDY(n) = (pointer)r1;
NEWNODE(NEXT(n)); BDY(NEXT(n)) = (pointer)r2;
NEXT(NEXT(n)) = 0; MKLIST(*rp,n);
}
void Pdp_lnf_f(arg,rp)
NODE arg;
LIST *rp;
{
DP r1,r2;
NODE b,g,n;
asir_assert(ARG0(arg),O_LIST,"dp_lnf_f");
asir_assert(ARG1(arg),O_LIST,"dp_lnf_f");
b = BDY((LIST)ARG0(arg)); g = BDY((LIST)ARG1(arg));
dp_lnf_f((DP)BDY(b),(DP)BDY(NEXT(b)),g,&r1,&r2);
NEWNODE(n); BDY(n) = (pointer)r1;
NEWNODE(NEXT(n)); BDY(NEXT(n)) = (pointer)r2;
NEXT(NEXT(n)) = 0; MKLIST(*rp,n);
}
void Pdp_nf_tab_mod(arg,rp)
NODE arg;
DP *rp;
{
asir_assert(ARG0(arg),O_DP,"dp_nf_tab_mod");
asir_assert(ARG1(arg),O_VECT,"dp_nf_tab_mod");
asir_assert(ARG2(arg),O_N,"dp_nf_tab_mod");
dp_nf_tab_mod((DP)ARG0(arg),(LIST *)BDY((VECT)ARG1(arg)),
QTOS((Q)ARG2(arg)),rp);
}
void Pdp_nf_tab_f(arg,rp)
NODE arg;
DP *rp;
{
asir_assert(ARG0(arg),O_DP,"dp_nf_tab_f");
asir_assert(ARG1(arg),O_VECT,"dp_nf_tab_f");
dp_nf_tab_f((DP)ARG0(arg),(LIST *)BDY((VECT)ARG1(arg)),rp);
}
void Pdp_ord(arg,rp)
NODE arg;
Obj *rp;
{
struct order_spec *spec;
LIST v;
struct oLIST f;
Num homo;
int modular;
f.id = O_LIST; f.body = 0;
if ( !arg && !current_option )
*rp = dp_current_spec->obj;
else {
if ( current_option )
parse_gr_option(&f,current_option,&v,&homo,&modular,&spec);
else if ( !create_order_spec(0,(Obj)ARG0(arg),&spec) )
error("dp_ord : invalid order specification");
initd(spec); *rp = spec->obj;
}
}
void Pdp_ptod(arg,rp)
NODE arg;
DP *rp;
{
P p;
NODE n;
VL vl,tvl;
struct oLIST f;
int ac;
LIST v;
Num homo;
int modular;
struct order_spec *ord;
asir_assert(ARG0(arg),O_P,"dp_ptod");
p = (P)ARG0(arg);
ac = argc(arg);
if ( ac == 1 ) {
if ( current_option ) {
f.id = O_LIST; f.body = mknode(1,p);
parse_gr_option(&f,current_option,&v,&homo,&modular,&ord);
initd(ord);
} else
error("dp_ptod : invalid argument");
} else {
asir_assert(ARG1(arg),O_LIST,"dp_ptod");
v = (LIST)ARG1(arg);
}
for ( vl = 0, n = BDY(v); n; n = NEXT(n) ) {
if ( !vl ) {
NEWVL(vl); tvl = vl;
} else {
NEWVL(NEXT(tvl)); tvl = NEXT(tvl);
}
VR(tvl) = VR((P)BDY(n));
}
if ( vl )
NEXT(tvl) = 0;
ptod(CO,vl,p,rp);
}
void Phomogenize(arg,rp)
NODE arg;
P *rp;
{
P p;
DP d,h;
NODE n;
V hv;
VL vl,tvl,last;
struct oLIST f;
LIST v;
asir_assert(ARG0(arg),O_P,"homogenize");
p = (P)ARG0(arg);
asir_assert(ARG1(arg),O_LIST,"homogenize");
v = (LIST)ARG1(arg);
asir_assert(ARG2(arg),O_P,"homogenize");
hv = VR((P)ARG2(arg));
for ( vl = 0, n = BDY(v); n; n = NEXT(n) ) {
if ( !vl ) {
NEWVL(vl); tvl = vl;
} else {
NEWVL(NEXT(tvl)); tvl = NEXT(tvl);
}
VR(tvl) = VR((P)BDY(n));
}
if ( vl ) {
last = tvl;
NEXT(tvl) = 0;
}
ptod(CO,vl,p,&d);
dp_homo(d,&h);
NEWVL(NEXT(last)); last = NEXT(last);
VR(last) = hv; NEXT(last) = 0;
dtop(CO,vl,h,rp);
}
void Pdp_ltod(arg,rp)
NODE arg;
DPV *rp;
{
NODE n;
VL vl,tvl;
LIST f,v;
int sugar,i,len,ac,modular;
Num homo;
struct order_spec *ord;
DP *e;
NODE nd,t;
ac = argc(arg);
asir_assert(ARG0(arg),O_LIST,"dp_ptod");
f = (LIST)ARG0(arg);
if ( ac == 1 ) {
if ( current_option ) {
parse_gr_option(f,current_option,&v,&homo,&modular,&ord);
initd(ord);
} else
error("dp_ltod : invalid argument");
} else {
asir_assert(ARG1(arg),O_LIST,"dp_ptod");
v = (LIST)ARG1(arg);
}
for ( vl = 0, n = BDY(v); n; n = NEXT(n) ) {
if ( !vl ) {
NEWVL(vl); tvl = vl;
} else {
NEWVL(NEXT(tvl)); tvl = NEXT(tvl);
}
VR(tvl) = VR((P)BDY(n));
}
if ( vl )
NEXT(tvl) = 0;
nd = BDY(f);
len = length(nd);
e = (DP *)MALLOC(len*sizeof(DP));
sugar = 0;
for ( i = 0, t = nd; i < len; i++, t = NEXT(t) ) {
ptod(CO,vl,(P)BDY(t),&e[i]);
if ( e[i] )
sugar = MAX(sugar,e[i]->sugar);
}
MKDPV(len,e,*rp);
}
void Pdp_dtop(arg,rp)
NODE arg;
P *rp;
{
NODE n;
VL vl,tvl;
asir_assert(ARG0(arg),O_DP,"dp_dtop");
asir_assert(ARG1(arg),O_LIST,"dp_dtop");
for ( vl = 0, n = BDY((LIST)ARG1(arg)); n; n = NEXT(n) ) {
if ( !vl ) {
NEWVL(vl); tvl = vl;
} else {
NEWVL(NEXT(tvl)); tvl = NEXT(tvl);
}
VR(tvl) = VR((P)BDY(n));
}
if ( vl )
NEXT(tvl) = 0;
dtop(CO,vl,(DP)ARG0(arg),rp);
}
extern LIST Dist;
void Pdp_ptozp(arg,rp)
NODE arg;
Obj *rp;
{
Q t;
NODE tt,p;
NODE n,n0;
char *key;
DP pp;
LIST list;
int get_factor=0;
asir_assert(ARG0(arg),O_DP,"dp_ptozp");
/* analyze the option */
if ( current_option ) {
for ( tt = current_option; tt; tt = NEXT(tt) ) {
p = BDY((LIST)BDY(tt));
key = BDY((STRING)BDY(p));
/* value = (Obj)BDY(NEXT(p)); */
if ( !strcmp(key,"factor") ) get_factor=1;
else {
error("ptozp: unknown option.");
}
}
}
dp_ptozp3((DP)ARG0(arg),&t,&pp);
/* printexpr(NULL,t); */
/* if the option factor is given, then it returns the answer
in the format [zpoly, num] where num*zpoly is equal to the argument.*/
if (get_factor) {
n0 = mknode(2,pp,t);
MKLIST(list,n0);
*rp = (Obj)list;
} else
*rp = (Obj)pp;
}
void Pdp_ptozp2(arg,rp)
NODE arg;
LIST *rp;
{
DP p0,p1,h,r;
NODE n0;
p0 = (DP)ARG0(arg); p1 = (DP)ARG1(arg);
asir_assert(p0,O_DP,"dp_ptozp2");
asir_assert(p1,O_DP,"dp_ptozp2");
dp_ptozp2(p0,p1,&h,&r);
NEWNODE(n0); BDY(n0) = (pointer)h;
NEWNODE(NEXT(n0)); BDY(NEXT(n0)) = (pointer)r;
NEXT(NEXT(n0)) = 0;
MKLIST(*rp,n0);
}
void Pdp_prim(arg,rp)
NODE arg;
DP *rp;
{
DP t;
asir_assert(ARG0(arg),O_DP,"dp_prim");
dp_prim((DP)ARG0(arg),&t); dp_ptozp(t,rp);
}
void Pdp_mod(arg,rp)
NODE arg;
DP *rp;
{
DP p;
int mod;
NODE subst;
asir_assert(ARG0(arg),O_DP,"dp_mod");
asir_assert(ARG1(arg),O_N,"dp_mod");
asir_assert(ARG2(arg),O_LIST,"dp_mod");
p = (DP)ARG0(arg); mod = QTOS((Q)ARG1(arg));
subst = BDY((LIST)ARG2(arg));
dp_mod(p,mod,subst,rp);
}
void Pdp_rat(arg,rp)
NODE arg;
DP *rp;
{
asir_assert(ARG0(arg),O_DP,"dp_rat");
dp_rat((DP)ARG0(arg),rp);
}
extern int DP_Multiple;
void Pdp_nf(arg,rp)
NODE arg;
DP *rp;
{
NODE b;
DP *ps;
DP g;
int full;
do_weyl = 0; dp_fcoeffs = 0;
asir_assert(ARG0(arg),O_LIST,"dp_nf");
asir_assert(ARG1(arg),O_DP,"dp_nf");
asir_assert(ARG2(arg),O_VECT,"dp_nf");
asir_assert(ARG3(arg),O_N,"dp_nf");
if ( !(g = (DP)ARG1(arg)) ) {
*rp = 0; return;
}
b = BDY((LIST)ARG0(arg)); ps = (DP *)BDY((VECT)ARG2(arg));
full = (Q)ARG3(arg) ? 1 : 0;
dp_nf_z(b,g,ps,full,DP_Multiple,rp);
}
void Pdp_weyl_nf(arg,rp)
NODE arg;
DP *rp;
{
NODE b;
DP *ps;
DP g;
int full;
asir_assert(ARG0(arg),O_LIST,"dp_weyl_nf");
asir_assert(ARG1(arg),O_DP,"dp_weyl_nf");
asir_assert(ARG2(arg),O_VECT,"dp_weyl_nf");
asir_assert(ARG3(arg),O_N,"dp_weyl_nf");
if ( !(g = (DP)ARG1(arg)) ) {
*rp = 0; return;
}
b = BDY((LIST)ARG0(arg)); ps = (DP *)BDY((VECT)ARG2(arg));
full = (Q)ARG3(arg) ? 1 : 0;
do_weyl = 1;
dp_nf_z(b,g,ps,full,DP_Multiple,rp);
do_weyl = 0;
}
/* nf computation using field operations */
void Pdp_nf_f(arg,rp)
NODE arg;
DP *rp;
{
NODE b;
DP *ps;
DP g;
int full;
do_weyl = 0;
asir_assert(ARG0(arg),O_LIST,"dp_nf_f");
asir_assert(ARG1(arg),O_DP,"dp_nf_f");
asir_assert(ARG2(arg),O_VECT,"dp_nf_f");
asir_assert(ARG3(arg),O_N,"dp_nf_f");
if ( !(g = (DP)ARG1(arg)) ) {
*rp = 0; return;
}
b = BDY((LIST)ARG0(arg)); ps = (DP *)BDY((VECT)ARG2(arg));
full = (Q)ARG3(arg) ? 1 : 0;
dp_nf_f(b,g,ps,full,rp);
}
void Pdp_weyl_nf_f(arg,rp)
NODE arg;
DP *rp;
{
NODE b;
DP *ps;
DP g;
int full;
asir_assert(ARG0(arg),O_LIST,"dp_weyl_nf_f");
asir_assert(ARG1(arg),O_DP,"dp_weyl_nf_f");
asir_assert(ARG2(arg),O_VECT,"dp_weyl_nf_f");
asir_assert(ARG3(arg),O_N,"dp_weyl_nf_f");
if ( !(g = (DP)ARG1(arg)) ) {
*rp = 0; return;
}
b = BDY((LIST)ARG0(arg)); ps = (DP *)BDY((VECT)ARG2(arg));
full = (Q)ARG3(arg) ? 1 : 0;
do_weyl = 1;
dp_nf_f(b,g,ps,full,rp);
do_weyl = 0;
}
void Pdp_nf_mod(arg,rp)
NODE arg;
DP *rp;
{
NODE b;
DP g;
DP *ps;
int mod,full,ac;
NODE n,n0;
do_weyl = 0;
ac = argc(arg);
asir_assert(ARG0(arg),O_LIST,"dp_nf_mod");
asir_assert(ARG1(arg),O_DP,"dp_nf_mod");
asir_assert(ARG2(arg),O_VECT,"dp_nf_mod");
asir_assert(ARG3(arg),O_N,"dp_nf_mod");
asir_assert(ARG4(arg),O_N,"dp_nf_mod");
if ( !(g = (DP)ARG1(arg)) ) {
*rp = 0; return;
}
b = BDY((LIST)ARG0(arg)); ps = (DP *)BDY((VECT)ARG2(arg));
full = QTOS((Q)ARG3(arg)); mod = QTOS((Q)ARG4(arg));
for ( n0 = n = 0; b; b = NEXT(b) ) {
NEXTNODE(n0,n);
BDY(n) = (pointer)QTOS((Q)BDY(b));
}
if ( n0 )
NEXT(n) = 0;
dp_nf_mod(n0,g,ps,mod,full,rp);
}
void Pdp_true_nf(arg,rp)
NODE arg;
LIST *rp;
{
NODE b,n;
DP *ps;
DP g;
DP nm;
P dn;
int full;
do_weyl = 0; dp_fcoeffs = 0;
asir_assert(ARG0(arg),O_LIST,"dp_true_nf");
asir_assert(ARG1(arg),O_DP,"dp_true_nf");
asir_assert(ARG2(arg),O_VECT,"dp_true_nf");
asir_assert(ARG3(arg),O_N,"dp_nf");
if ( !(g = (DP)ARG1(arg)) ) {
nm = 0; dn = (P)ONE;
} else {
b = BDY((LIST)ARG0(arg)); ps = (DP *)BDY((VECT)ARG2(arg));
full = (Q)ARG3(arg) ? 1 : 0;
dp_true_nf(b,g,ps,full,&nm,&dn);
}
NEWNODE(n); BDY(n) = (pointer)nm;
NEWNODE(NEXT(n)); BDY(NEXT(n)) = (pointer)dn;
NEXT(NEXT(n)) = 0; MKLIST(*rp,n);
}
void Pdp_true_nf_marked(arg,rp)
NODE arg;
LIST *rp;
{
NODE b,n;
DP *ps,*hps;
DP g;
DP nm;
Q cont;
P dn;
int full;
do_weyl = 0; dp_fcoeffs = 0;
asir_assert(ARG0(arg),O_LIST,"dp_true_nf_marked");
asir_assert(ARG1(arg),O_DP,"dp_true_nf_marked");
asir_assert(ARG2(arg),O_VECT,"dp_true_nf_marked");
asir_assert(ARG3(arg),O_VECT,"dp_true_nf_marked");
if ( !(g = (DP)ARG1(arg)) ) {
nm = 0; dn = (P)ONE;
} else {
b = BDY((LIST)ARG0(arg));
ps = (DP *)BDY((VECT)ARG2(arg));
hps = (DP *)BDY((VECT)ARG3(arg));
dp_true_nf_marked(b,g,ps,hps,&nm,&cont,&dn);
}
n = mknode(3,nm,cont,dn);
MKLIST(*rp,n);
}
DP *dp_true_nf_and_quotient_marked (NODE b,DP g,DP *ps,DP *hps,DP *rp,P *dnp);
void Pdp_true_nf_and_quotient_marked(arg,rp)
NODE arg;
LIST *rp;
{
NODE b,n;
DP *ps,*hps;
DP g;
DP nm;
VECT quo;
P dn;
int full;
do_weyl = 0; dp_fcoeffs = 0;
asir_assert(ARG0(arg),O_LIST,"dp_true_nf_and_quotient_marked");
asir_assert(ARG1(arg),O_DP,"dp_true_nf_and_quotient_marked");
asir_assert(ARG2(arg),O_VECT,"dp_true_nf_and_quotient_marked");
asir_assert(ARG3(arg),O_VECT,"dp_true_nf_and_quotient_marked");
if ( !(g = (DP)ARG1(arg)) ) {
nm = 0; dn = (P)ONE;
} else {
b = BDY((LIST)ARG0(arg));
ps = (DP *)BDY((VECT)ARG2(arg));
hps = (DP *)BDY((VECT)ARG3(arg));
NEWVECT(quo); quo->len = ((VECT)ARG2(arg))->len;
quo->body = (pointer *)dp_true_nf_and_quotient_marked(b,g,ps,hps,&nm,&dn);
}
n = mknode(3,nm,dn,quo);
MKLIST(*rp,n);
}
DP *dp_true_nf_and_quotient_marked_mod (NODE b,DP g,DP *ps,DP *hps,int mod,DP *rp,P *dnp);
void Pdp_true_nf_and_quotient_marked_mod(arg,rp)
NODE arg;
LIST *rp;
{
NODE b,n;
DP *ps,*hps;
DP g;
DP nm;
VECT quo;
P dn;
int full,mod;
do_weyl = 0; dp_fcoeffs = 0;
asir_assert(ARG0(arg),O_LIST,"dp_true_nf_and_quotient_marked_mod");
asir_assert(ARG1(arg),O_DP,"dp_true_nf_and_quotient_marked_mod");
asir_assert(ARG2(arg),O_VECT,"dp_true_nf_and_quotient_marked_mod");
asir_assert(ARG3(arg),O_VECT,"dp_true_nf_and_quotient_marked_mod");
asir_assert(ARG4(arg),O_N,"dp_true_nf_and_quotient_marked_mod");
if ( !(g = (DP)ARG1(arg)) ) {
nm = 0; dn = (P)ONE;
} else {
b = BDY((LIST)ARG0(arg));
ps = (DP *)BDY((VECT)ARG2(arg));
hps = (DP *)BDY((VECT)ARG3(arg));
mod = QTOS((Q)ARG4(arg));
NEWVECT(quo); quo->len = ((VECT)ARG2(arg))->len;
quo->body = (pointer *)dp_true_nf_and_quotient_marked_mod(b,g,ps,hps,mod,&nm,&dn);
}
n = mknode(3,nm,dn,quo);
MKLIST(*rp,n);
}
void Pdp_true_nf_marked_mod(arg,rp)
NODE arg;
LIST *rp;
{
NODE b,n;
DP *ps,*hps;
DP g;
DP nm;
P dn;
int mod;
do_weyl = 0; dp_fcoeffs = 0;
asir_assert(ARG0(arg),O_LIST,"dp_true_nf_marked_mod");
asir_assert(ARG1(arg),O_DP,"dp_true_nf_marked_mod");
asir_assert(ARG2(arg),O_VECT,"dp_true_nf_marked_mod");
asir_assert(ARG3(arg),O_VECT,"dp_true_nf_marked_mod");
asir_assert(ARG4(arg),O_N,"dp_true_nf_marked_mod");
if ( !(g = (DP)ARG1(arg)) ) {
nm = 0; dn = (P)ONE;
} else {
b = BDY((LIST)ARG0(arg));
ps = (DP *)BDY((VECT)ARG2(arg));
hps = (DP *)BDY((VECT)ARG3(arg));
mod = QTOS((Q)ARG4(arg));
dp_true_nf_marked_mod(b,g,ps,hps,mod,&nm,&dn);
}
n = mknode(2,nm,dn);
MKLIST(*rp,n);
}
void Pdp_weyl_nf_mod(arg,rp)
NODE arg;
DP *rp;
{
NODE b;
DP g;
DP *ps;
int mod,full,ac;
NODE n,n0;
ac = argc(arg);
asir_assert(ARG0(arg),O_LIST,"dp_weyl_nf_mod");
asir_assert(ARG1(arg),O_DP,"dp_weyl_nf_mod");
asir_assert(ARG2(arg),O_VECT,"dp_weyl_nf_mod");
asir_assert(ARG3(arg),O_N,"dp_weyl_nf_mod");
asir_assert(ARG4(arg),O_N,"dp_weyl_nf_mod");
if ( !(g = (DP)ARG1(arg)) ) {
*rp = 0; return;
}
b = BDY((LIST)ARG0(arg)); ps = (DP *)BDY((VECT)ARG2(arg));
full = QTOS((Q)ARG3(arg)); mod = QTOS((Q)ARG4(arg));
for ( n0 = n = 0; b; b = NEXT(b) ) {
NEXTNODE(n0,n);
BDY(n) = (pointer)QTOS((Q)BDY(b));
}
if ( n0 )
NEXT(n) = 0;
do_weyl = 1;
dp_nf_mod(n0,g,ps,mod,full,rp);
do_weyl = 0;
}
void Pdp_true_nf_mod(arg,rp)
NODE arg;
LIST *rp;
{
NODE b;
DP g,nm;
P dn;
DP *ps;
int mod,full;
NODE n;
do_weyl = 0;
asir_assert(ARG0(arg),O_LIST,"dp_nf_mod");
asir_assert(ARG1(arg),O_DP,"dp_nf_mod");
asir_assert(ARG2(arg),O_VECT,"dp_nf_mod");
asir_assert(ARG3(arg),O_N,"dp_nf_mod");
asir_assert(ARG4(arg),O_N,"dp_nf_mod");
if ( !(g = (DP)ARG1(arg)) ) {
nm = 0; dn = (P)ONEM;
} else {
b = BDY((LIST)ARG0(arg)); ps = (DP *)BDY((VECT)ARG2(arg));
full = QTOS((Q)ARG3(arg)); mod = QTOS((Q)ARG4(arg));
dp_true_nf_mod(b,g,ps,mod,full,&nm,&dn);
}
NEWNODE(n); BDY(n) = (pointer)nm;
NEWNODE(NEXT(n)); BDY(NEXT(n)) = (pointer)dn;
NEXT(NEXT(n)) = 0; MKLIST(*rp,n);
}
void Pdp_tdiv(arg,rp)
NODE arg;
DP *rp;
{
MP m,mr,mr0;
DP p;
Q c;
N d,q,r;
int sgn;
asir_assert(ARG0(arg),O_DP,"dp_tdiv");
asir_assert(ARG1(arg),O_N,"dp_tdiv");
p = (DP)ARG0(arg); d = NM((Q)ARG1(arg)); sgn = SGN((Q)ARG1(arg));
if ( !p )
*rp = 0;
else {
for ( mr0 = 0, m = BDY(p); m; m = NEXT(m) ) {
divn(NM((Q)m->c),d,&q,&r);
if ( r ) {
*rp = 0; return;
} else {
NEXTMP(mr0,mr); NTOQ(q,SGN((Q)m->c)*sgn,c);
mr->c = (P)c; mr->dl = m->dl;
}
}
NEXT(mr) = 0; MKDP(p->nv,mr0,*rp); (*rp)->sugar = p->sugar;
}
}
void Pdp_red_coef(arg,rp)
NODE arg;
DP *rp;
{
MP m,mr,mr0;
P q,r;
DP p;
P mod;
p = (DP)ARG0(arg); mod = (P)ARG1(arg);
asir_assert(p,O_DP,"dp_red_coef");
asir_assert(mod,O_P,"dp_red_coef");
if ( !p )
*rp = 0;
else {
for ( mr0 = 0, m = BDY(p); m; m = NEXT(m) ) {
divsrp(CO,m->c,mod,&q,&r);
if ( r ) {
NEXTMP(mr0,mr); mr->c = r; mr->dl = m->dl;
}
}
if ( mr0 ) {
NEXT(mr) = 0; MKDP(p->nv,mr0,*rp); (*rp)->sugar = p->sugar;
} else
*rp = 0;
}
}
void Pdp_redble(arg,rp)
NODE arg;
Q *rp;
{
asir_assert(ARG0(arg),O_DP,"dp_redble");
asir_assert(ARG1(arg),O_DP,"dp_redble");
if ( dp_redble((DP)ARG0(arg),(DP)ARG1(arg)) )
*rp = ONE;
else
*rp = 0;
}
void Pdp_red_mod(arg,rp)
NODE arg;
LIST *rp;
{
DP h,r;
P dmy;
NODE n;
do_weyl = 0;
asir_assert(ARG0(arg),O_DP,"dp_red_mod");
asir_assert(ARG1(arg),O_DP,"dp_red_mod");
asir_assert(ARG2(arg),O_DP,"dp_red_mod");
asir_assert(ARG3(arg),O_N,"dp_red_mod");
dp_red_mod((DP)ARG0(arg),(DP)ARG1(arg),(DP)ARG2(arg),QTOS((Q)ARG3(arg)),
&h,&r,&dmy);
NEWNODE(n); BDY(n) = (pointer)h;
NEWNODE(NEXT(n)); BDY(NEXT(n)) = (pointer)r;
NEXT(NEXT(n)) = 0; MKLIST(*rp,n);
}
void Pdp_subd(arg,rp)
NODE arg;
DP *rp;
{
DP p1,p2;
p1 = (DP)ARG0(arg); p2 = (DP)ARG1(arg);
asir_assert(p1,O_DP,"dp_subd");
asir_assert(p2,O_DP,"dp_subd");
dp_subd(p1,p2,rp);
}
void Pdp_symb_add(arg,rp)
NODE arg;
DP *rp;
{
DP p1,p2,r;
NODE s0;
MP mp0,mp;
int nv;
p1 = (DP)ARG0(arg); p2 = (DP)ARG1(arg);
asir_assert(p1,O_DP,"dp_symb_add");
asir_assert(p2,O_DP,"dp_symb_add");
if ( p1->nv != p2->nv )
error("dp_sumb_add : invalid input");
nv = p1->nv;
s0 = symb_merge(dp_dllist(p1),dp_dllist(p2),nv);
for ( mp0 = 0; s0; s0 = NEXT(s0) ) {
NEXTMP(mp0,mp); mp->dl = (DL)BDY(s0); mp->c = (P)ONE;
}
NEXT(mp) = 0;
MKDP(nv,mp0,r); r->sugar = MAX(p1->sugar,p2->sugar);
*rp = r;
}
void Pdp_mul_trunc(arg,rp)
NODE arg;
DP *rp;
{
DP p1,p2,p;
p1 = (DP)ARG0(arg); p2 = (DP)ARG1(arg); p = (DP)ARG2(arg);
asir_assert(p1,O_DP,"dp_mul_trunc");
asir_assert(p2,O_DP,"dp_mul_trunc");
asir_assert(p,O_DP,"dp_mul_trunc");
comm_muld_trunc(CO,p1,p2,BDY(p)->dl,rp);
}
void Pdp_quo(arg,rp)
NODE arg;
DP *rp;
{
DP p1,p2;
p1 = (DP)ARG0(arg); p2 = (DP)ARG1(arg);
asir_assert(p1,O_DP,"dp_quo");
asir_assert(p2,O_DP,"dp_quo");
comm_quod(CO,p1,p2,rp);
}
void Pdp_weyl_mul(arg,rp)
NODE arg;
DP *rp;
{
DP p1,p2;
p1 = (DP)ARG0(arg); p2 = (DP)ARG1(arg);
asir_assert(p1,O_DP,"dp_weyl_mul"); asir_assert(p2,O_DP,"dp_weyl_mul");
do_weyl = 1;
muld(CO,p1,p2,rp);
do_weyl = 0;
}
void Pdp_weyl_mul_mod(arg,rp)
NODE arg;
DP *rp;
{
DP p1,p2;
Q m;
p1 = (DP)ARG0(arg); p2 = (DP)ARG1(arg); m = (Q)ARG2(arg);
asir_assert(p1,O_DP,"dp_weyl_mul_mod");
asir_assert(p2,O_DP,"dp_mul_mod");
asir_assert(m,O_N,"dp_mul_mod");
do_weyl = 1;
mulmd(CO,QTOS(m),p1,p2,rp);
do_weyl = 0;
}
void Pdp_red(arg,rp)
NODE arg;
LIST *rp;
{
NODE n;
DP head,rest,dmy1;
P dmy;
do_weyl = 0;
asir_assert(ARG0(arg),O_DP,"dp_red");
asir_assert(ARG1(arg),O_DP,"dp_red");
asir_assert(ARG2(arg),O_DP,"dp_red");
dp_red((DP)ARG0(arg),(DP)ARG1(arg),(DP)ARG2(arg),&head,&rest,&dmy,&dmy1);
NEWNODE(n); BDY(n) = (pointer)head;
NEWNODE(NEXT(n)); BDY(NEXT(n)) = (pointer)rest;
NEXT(NEXT(n)) = 0; MKLIST(*rp,n);
}
void Pdp_weyl_red(arg,rp)
NODE arg;
LIST *rp;
{
NODE n;
DP head,rest,dmy1;
P dmy;
asir_assert(ARG0(arg),O_DP,"dp_weyl_red");
asir_assert(ARG1(arg),O_DP,"dp_weyl_red");
asir_assert(ARG2(arg),O_DP,"dp_weyl_red");
do_weyl = 1;
dp_red((DP)ARG0(arg),(DP)ARG1(arg),(DP)ARG2(arg),&head,&rest,&dmy,&dmy1);
do_weyl = 0;
NEWNODE(n); BDY(n) = (pointer)head;
NEWNODE(NEXT(n)); BDY(NEXT(n)) = (pointer)rest;
NEXT(NEXT(n)) = 0; MKLIST(*rp,n);
}
void Pdp_sp(arg,rp)
NODE arg;
DP *rp;
{
DP p1,p2;
do_weyl = 0;
p1 = (DP)ARG0(arg); p2 = (DP)ARG1(arg);
asir_assert(p1,O_DP,"dp_sp"); asir_assert(p2,O_DP,"dp_sp");
dp_sp(p1,p2,rp);
}
void Pdp_weyl_sp(arg,rp)
NODE arg;
DP *rp;
{
DP p1,p2;
p1 = (DP)ARG0(arg); p2 = (DP)ARG1(arg);
asir_assert(p1,O_DP,"dp_weyl_sp"); asir_assert(p2,O_DP,"dp_sp");
do_weyl = 1;
dp_sp(p1,p2,rp);
do_weyl = 0;
}
void Pdp_sp_mod(arg,rp)
NODE arg;
DP *rp;
{
DP p1,p2;
int mod;
do_weyl = 0;
p1 = (DP)ARG0(arg); p2 = (DP)ARG1(arg);
asir_assert(p1,O_DP,"dp_sp_mod"); asir_assert(p2,O_DP,"dp_sp_mod");
asir_assert(ARG2(arg),O_N,"dp_sp_mod");
mod = QTOS((Q)ARG2(arg));
dp_sp_mod(p1,p2,mod,rp);
}
void Pdp_lcm(arg,rp)
NODE arg;
DP *rp;
{
int i,n,td;
DL d1,d2,d;
MP m;
DP p1,p2;
p1 = (DP)ARG0(arg); p2 = (DP)ARG1(arg);
asir_assert(p1,O_DP,"dp_lcm"); asir_assert(p2,O_DP,"dp_lcm");
n = p1->nv; d1 = BDY(p1)->dl; d2 = BDY(p2)->dl;
NEWDL(d,n);
for ( i = 0, td = 0; i < n; i++ ) {
d->d[i] = MAX(d1->d[i],d2->d[i]); td += MUL_WEIGHT(d->d[i],i);
}
d->td = td;
NEWMP(m); m->dl = d; m->c = (P)ONE; NEXT(m) = 0;
MKDP(n,m,*rp); (*rp)->sugar = td; /* XXX */
}
void Pdp_hm(arg,rp)
NODE arg;
DP *rp;
{
DP p;
p = (DP)ARG0(arg); asir_assert(p,O_DP,"dp_hm");
dp_hm(p,rp);
}
void Pdp_ht(arg,rp)
NODE arg;
DP *rp;
{
DP p;
MP m,mr;
p = (DP)ARG0(arg); asir_assert(p,O_DP,"dp_ht");
dp_ht(p,rp);
}
void Pdp_hc(arg,rp)
NODE arg;
P *rp;
{
asir_assert(ARG0(arg),O_DP,"dp_hc");
if ( !ARG0(arg) )
*rp = 0;
else
*rp = BDY((DP)ARG0(arg))->c;
}
void Pdp_rest(arg,rp)
NODE arg;
DP *rp;
{
asir_assert(ARG0(arg),O_DP,"dp_rest");
if ( !ARG0(arg) )
*rp = 0;
else
dp_rest((DP)ARG0(arg),rp);
}
void Pdp_td(arg,rp)
NODE arg;
Q *rp;
{
DP p;
p = (DP)ARG0(arg); asir_assert(p,O_DP,"dp_td");
if ( !p )
*rp = 0;
else
STOQ(BDY(p)->dl->td,*rp);
}
void Pdp_sugar(arg,rp)
NODE arg;
Q *rp;
{
DP p;
p = (DP)ARG0(arg); asir_assert(p,O_DP,"dp_sugar");
if ( !p )
*rp = 0;
else
STOQ(p->sugar,*rp);
}
void Pdp_initial_term(arg,rp)
NODE arg;
Obj *rp;
{
struct order_spec *ord;
Num homo;
int modular,is_list;
LIST v,f,l,initiallist;
NODE n;
f = (LIST)ARG0(arg);
if ( f && OID(f) == O_LIST )
is_list = 1;
else {
n = mknode(1,f); MKLIST(l,n); f = l;
is_list = 0;
}
if ( current_option ) {
parse_gr_option(f,current_option,&v,&homo,&modular,&ord);
initd(ord);
} else
ord = dp_current_spec;
initiallist = dp_initial_term(f,ord);
if ( !is_list )
*rp = (Obj)BDY(BDY(initiallist));
else
*rp = (Obj)initiallist;
}
void Pdp_order(arg,rp)
NODE arg;
Obj *rp;
{
struct order_spec *ord;
Num homo;
int modular,is_list;
LIST v,f,l,ordlist;
NODE n;
f = (LIST)ARG0(arg);
if ( f && OID(f) == O_LIST )
is_list = 1;
else {
n = mknode(1,f); MKLIST(l,n); f = l;
is_list = 0;
}
if ( current_option ) {
parse_gr_option(f,current_option,&v,&homo,&modular,&ord);
initd(ord);
} else
ord = dp_current_spec;
ordlist = dp_order(f,ord);
if ( !is_list )
*rp = (Obj)BDY(BDY(ordlist));
else
*rp = (Obj)ordlist;
}
void Pdp_set_sugar(arg,rp)
NODE arg;
Q *rp;
{
DP p;
Q q;
int i;
p = (DP)ARG0(arg);
q = (Q)ARG1(arg);
if ( p && q) {
asir_assert(p,O_DP,"dp_set_sugar");
asir_assert(q,O_N, "dp_set_sugar");
i = QTOS(q);
if (p->sugar < i) {
p->sugar = i;
}
}
*rp = 0;
}
void Pdp_cri1(arg,rp)
NODE arg;
Q *rp;
{
DP p1,p2;
int *d1,*d2;
int i,n;
p1 = (DP)ARG0(arg); p2 = (DP)ARG1(arg);
asir_assert(p1,O_DP,"dp_cri1"); asir_assert(p2,O_DP,"dp_cri1");
n = p1->nv; d1 = BDY(p1)->dl->d; d2 = BDY(p2)->dl->d;
for ( i = 0; i < n; i++ )
if ( d1[i] > d2[i] )
break;
*rp = i == n ? ONE : 0;
}
void Pdp_cri2(arg,rp)
NODE arg;
Q *rp;
{
DP p1,p2;
int *d1,*d2;
int i,n;
p1 = (DP)ARG0(arg); p2 = (DP)ARG1(arg);
asir_assert(p1,O_DP,"dp_cri2"); asir_assert(p2,O_DP,"dp_cri2");
n = p1->nv; d1 = BDY(p1)->dl->d; d2 = BDY(p2)->dl->d;
for ( i = 0; i < n; i++ )
if ( MIN(d1[i],d2[i]) >= 1 )
break;
*rp = i == n ? ONE : 0;
}
void Pdp_minp(arg,rp)
NODE arg;
LIST *rp;
{
NODE tn,tn1,d,dd,dd0,p,tp;
LIST l,minp;
DP lcm,tlcm;
int s,ts;
asir_assert(ARG0(arg),O_LIST,"dp_minp");
d = BDY((LIST)ARG0(arg)); minp = (LIST)BDY(d);
p = BDY(minp); p = NEXT(NEXT(p)); lcm = (DP)BDY(p); p = NEXT(p);
if ( !ARG1(arg) ) {
s = QTOS((Q)BDY(p)); p = NEXT(p);
for ( dd0 = 0, d = NEXT(d); d; d = NEXT(d) ) {
tp = BDY((LIST)BDY(d)); tp = NEXT(NEXT(tp));
tlcm = (DP)BDY(tp); tp = NEXT(tp);
ts = QTOS((Q)BDY(tp)); tp = NEXT(tp);
NEXTNODE(dd0,dd);
if ( ts < s ) {
BDY(dd) = (pointer)minp;
minp = (LIST)BDY(d); lcm = tlcm; s = ts;
} else if ( ts == s ) {
if ( compd(CO,lcm,tlcm) > 0 ) {
BDY(dd) = (pointer)minp;
minp = (LIST)BDY(d); lcm = tlcm; s = ts;
} else
BDY(dd) = BDY(d);
} else
BDY(dd) = BDY(d);
}
} else {
for ( dd0 = 0, d = NEXT(d); d; d = NEXT(d) ) {
tp = BDY((LIST)BDY(d)); tp = NEXT(NEXT(tp));
tlcm = (DP)BDY(tp);
NEXTNODE(dd0,dd);
if ( compd(CO,lcm,tlcm) > 0 ) {
BDY(dd) = (pointer)minp; minp = (LIST)BDY(d); lcm = tlcm;
} else
BDY(dd) = BDY(d);
}
}
if ( dd0 )
NEXT(dd) = 0;
MKLIST(l,dd0); MKNODE(tn,l,0); MKNODE(tn1,minp,tn); MKLIST(*rp,tn1);
}
void Pdp_criB(arg,rp)
NODE arg;
LIST *rp;
{
NODE d,ij,dd,ddd;
int i,j,s,n;
DP *ps;
DL ts,ti,tj,lij,tdl;
asir_assert(ARG0(arg),O_LIST,"dp_criB"); d = BDY((LIST)ARG0(arg));
asir_assert(ARG1(arg),O_N,"dp_criB"); s = QTOS((Q)ARG1(arg));
asir_assert(ARG2(arg),O_VECT,"dp_criB"); ps = (DP *)BDY((VECT)ARG2(arg));
if ( !d )
*rp = (LIST)ARG0(arg);
else {
ts = BDY(ps[s])->dl;
n = ps[s]->nv;
NEWDL(tdl,n);
for ( dd = 0; d; d = NEXT(d) ) {
ij = BDY((LIST)BDY(d));
i = QTOS((Q)BDY(ij)); ij = NEXT(ij);
j = QTOS((Q)BDY(ij)); ij = NEXT(ij);
lij = BDY((DP)BDY(ij))->dl;
ti = BDY(ps[i])->dl; tj = BDY(ps[j])->dl;
if ( lij->td != lcm_of_DL(n,lij,ts,tdl)->td
|| !dl_equal(n,lij,tdl)
|| (lij->td == lcm_of_DL(n,ti,ts,tdl)->td
&& dl_equal(n,tdl,lij))
|| (lij->td == lcm_of_DL(n,tj,ts,tdl)->td
&& dl_equal(n,tdl,lij)) ) {
MKNODE(ddd,BDY(d),dd);
dd = ddd;
}
}
MKLIST(*rp,dd);
}
}
void Pdp_nelim(arg,rp)
NODE arg;
Q *rp;
{
if ( arg ) {
asir_assert(ARG0(arg),O_N,"dp_nelim");
dp_nelim = QTOS((Q)ARG0(arg));
}
STOQ(dp_nelim,*rp);
}
void Pdp_mag(arg,rp)
NODE arg;
Q *rp;
{
DP p;
int s;
MP m;
p = (DP)ARG0(arg);
asir_assert(p,O_DP,"dp_mag");
if ( !p )
*rp = 0;
else {
for ( s = 0, m = BDY(p); m; m = NEXT(m) )
s += p_mag(m->c);
STOQ(s,*rp);
}
}
extern int kara_mag;
void Pdp_set_kara(arg,rp)
NODE arg;
Q *rp;
{
if ( arg ) {
asir_assert(ARG0(arg),O_N,"dp_set_kara");
kara_mag = QTOS((Q)ARG0(arg));
}
STOQ(kara_mag,*rp);
}
void Pdp_homo(arg,rp)
NODE arg;
DP *rp;
{
asir_assert(ARG0(arg),O_DP,"dp_homo");
dp_homo((DP)ARG0(arg),rp);
}
void Pdp_dehomo(arg,rp)
NODE arg;
DP *rp;
{
asir_assert(ARG0(arg),O_DP,"dp_dehomo");
dp_dehomo((DP)ARG0(arg),rp);
}
void Pdp_gr_flags(arg,rp)
NODE arg;
LIST *rp;
{
Obj name,value;
NODE n;
if ( arg ) {
asir_assert(ARG0(arg),O_LIST,"dp_gr_flags");
n = BDY((LIST)ARG0(arg));
while ( n ) {
name = (Obj)BDY(n); n = NEXT(n);
if ( !n )
break;
else {
value = (Obj)BDY(n); n = NEXT(n);
}
dp_set_flag(name,value);
}
}
dp_make_flaglist(rp);
}
extern int DP_Print, DP_PrintShort;
void Pdp_gr_print(arg,rp)
NODE arg;
Q *rp;
{
Q q;
int s;
if ( arg ) {
asir_assert(ARG0(arg),O_N,"dp_gr_print");
q = (Q)ARG0(arg);
s = QTOS(q);
switch ( s ) {
case 0:
DP_Print = 0; DP_PrintShort = 0;
break;
case 1:
DP_Print = 1;
break;
case 2:
DP_Print = 0; DP_PrintShort = 1;
break;
default:
DP_Print = s; DP_PrintShort = 0;
break;
}
} else {
if ( DP_Print ) {
STOQ(1,q);
} else if ( DP_PrintShort ) {
STOQ(2,q);
} else
q = 0;
}
*rp = q;
}
void parse_gr_option(LIST f,NODE opt,LIST *v,Num *homo,
int *modular,struct order_spec **ord)
{
NODE t,p;
Q m;
char *key;
Obj value,dmy;
int ord_is_set = 0;
int modular_is_set = 0;
int homo_is_set = 0;
VL vl,vl0;
LIST vars;
char xiname[BUFSIZ];
NODE x0,x;
DP d;
P xi;
int nv,i;
/* extract vars */
vars = 0;
for ( t = opt; t; t = NEXT(t) ) {
p = BDY((LIST)BDY(t));
key = BDY((STRING)BDY(p));
value = (Obj)BDY(NEXT(p));
if ( !strcmp(key,"v") ) {
/* variable list */
vars = (LIST)value;
break;
}
}
if ( vars ) {
*v = vars; pltovl(vars,&vl);
} else {
for ( t = BDY(f); t; t = NEXT(t) )
if ( BDY(t) && OID((Obj)BDY(t))==O_DP )
break;
if ( t ) {
/* f is DP list */
/* create dummy var list */
d = (DP)BDY(t);
nv = NV(d);
for ( i = 0, vl0 = 0, x0 = 0; i < nv; i++ ) {
NEXTVL(vl0,vl);
NEXTNODE(x0,x);
sprintf(xiname,"x%d",i);
makevar(xiname,&xi);
x->body = (pointer)xi;
vl->v = VR((P)xi);
}
if ( vl0 ) {
NEXT(vl) = 0;
NEXT(x) = 0;
}
MKLIST(vars,x0);
*v = vars;
vl = vl0;
} else {
get_vars((Obj)f,&vl); vltopl(vl,v);
}
}
for ( t = opt; t; t = NEXT(t) ) {
p = BDY((LIST)BDY(t));
key = BDY((STRING)BDY(p));
value = (Obj)BDY(NEXT(p));
if ( !strcmp(key,"v") ) {
/* variable list; ignore */
} else if ( !strcmp(key,"order") ) {
/* order spec */
if ( !vl )
error("parse_gr_option : variables must be specified");
create_order_spec(vl,value,ord);
ord_is_set = 1;
} else if ( !strcmp(key,"block") ) {
create_order_spec(0,value,ord);
ord_is_set = 1;
} else if ( !strcmp(key,"matrix") ) {
create_order_spec(0,value,ord);
ord_is_set = 1;
} else if ( !strcmp(key,"sugarweight") ) {
/* weight */
Pdp_set_weight(NEXT(p),&dmy);
} else if ( !strcmp(key,"homo") ) {
*homo = (Num)value;
homo_is_set = 1;
} else if ( !strcmp(key,"trace") ) {
m = (Q)value;
if ( !m )
*modular = 0;
else if ( PL(NM(m))>1 || (PL(NM(m)) == 1
&& BD(NM(m))[0] >= 0x80000000) )
error("parse_gr_option : too large modulus");
else
*modular = QTOS(m);
modular_is_set = 1;
} else
error("parse_gr_option : not implemented");
}
if ( !ord_is_set ) create_order_spec(0,0,ord);
if ( !modular_is_set ) *modular = 0;
if ( !homo_is_set ) *homo = 0;
}
void Pdp_gr_main(arg,rp)
NODE arg;
LIST *rp;
{
LIST f,v;
VL vl;
Num homo;
Q m;
int modular,ac;
struct order_spec *ord;
do_weyl = 0;
asir_assert(ARG0(arg),O_LIST,"dp_gr_main");
f = (LIST)ARG0(arg);
f = remove_zero_from_list(f);
if ( !BDY(f) ) {
*rp = f; return;
}
if ( (ac = argc(arg)) == 5 ) {
asir_assert(ARG1(arg),O_LIST,"dp_gr_main");
asir_assert(ARG2(arg),O_N,"dp_gr_main");
asir_assert(ARG3(arg),O_N,"dp_gr_main");
v = (LIST)ARG1(arg);
homo = (Num)ARG2(arg);
m = (Q)ARG3(arg);
if ( !m )
modular = 0;
else if ( PL(NM(m))>1 || (PL(NM(m)) == 1 && BD(NM(m))[0] >= 0x80000000) )
error("dp_gr_main : too large modulus");
else
modular = QTOS(m);
create_order_spec(0,ARG4(arg),&ord);
} else if ( current_option )
parse_gr_option(f,current_option,&v,&homo,&modular,&ord);
else if ( ac == 1 )
parse_gr_option(f,0,&v,&homo,&modular,&ord);
else
error("dp_gr_main : invalid argument");
dp_gr_main(f,v,homo,modular,0,ord,rp);
}
void Pdp_interreduce(arg,rp)
NODE arg;
LIST *rp;
{
LIST f,v;
VL vl;
int ac;
struct order_spec *ord;
do_weyl = 0;
asir_assert(ARG0(arg),O_LIST,"dp_interreduce");
f = (LIST)ARG0(arg);
f = remove_zero_from_list(f);
if ( !BDY(f) ) {
*rp = f; return;
}
if ( (ac = argc(arg)) == 3 ) {
asir_assert(ARG1(arg),O_LIST,"dp_interreduce");
v = (LIST)ARG1(arg);
create_order_spec(0,ARG2(arg),&ord);
}
dp_interreduce(f,v,0,ord,rp);
}
void Pdp_gr_f_main(arg,rp)
NODE arg;
LIST *rp;
{
LIST f,v;
Num homo;
int m,field,t;
struct order_spec *ord;
NODE n;
do_weyl = 0;
asir_assert(ARG0(arg),O_LIST,"dp_gr_f_main");
asir_assert(ARG1(arg),O_LIST,"dp_gr_f_main");
asir_assert(ARG2(arg),O_N,"dp_gr_f_main");
f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
f = remove_zero_from_list(f);
if ( !BDY(f) ) {
*rp = f; return;
}
homo = (Num)ARG2(arg);
#if 0
asir_assert(ARG3(arg),O_N,"dp_gr_f_main");
m = QTOS((Q)ARG3(arg));
if ( m )
error("dp_gr_f_main : trace lifting is not implemented yet");
create_order_spec(0,ARG4(arg),&ord);
#else
m = 0;
create_order_spec(0,ARG3(arg),&ord);
#endif
field = 0;
for ( n = BDY(f); n; n = NEXT(n) ) {
t = get_field_type(BDY(n));
if ( !t )
continue;
if ( t < 0 )
error("dp_gr_f_main : incosistent coefficients");
if ( !field )
field = t;
else if ( t != field )
error("dp_gr_f_main : incosistent coefficients");
}
dp_gr_main(f,v,homo,m?1:0,field,ord,rp);
}
void Pdp_f4_main(arg,rp)
NODE arg;
LIST *rp;
{
LIST f,v;
struct order_spec *ord;
do_weyl = 0;
asir_assert(ARG0(arg),O_LIST,"dp_f4_main");
asir_assert(ARG1(arg),O_LIST,"dp_f4_main");
f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
f = remove_zero_from_list(f);
if ( !BDY(f) ) {
*rp = f; return;
}
create_order_spec(0,ARG2(arg),&ord);
dp_f4_main(f,v,ord,rp);
}
/* dp_gr_checklist(list of dp) */
void Pdp_gr_checklist(arg,rp)
NODE arg;
LIST *rp;
{
VECT g;
LIST dp;
NODE r;
int n;
do_weyl = 0;
asir_assert(ARG0(arg),O_LIST,"dp_gr_checklist");
asir_assert(ARG1(arg),O_N,"dp_gr_checklist");
n = QTOS((Q)ARG1(arg));
gbcheck_list(BDY((LIST)ARG0(arg)),n,&g,&dp);
r = mknode(2,g,dp);
MKLIST(*rp,r);
}
void Pdp_f4_mod_main(arg,rp)
NODE arg;
LIST *rp;
{
LIST f,v;
int m;
struct order_spec *ord;
do_weyl = 0;
asir_assert(ARG0(arg),O_LIST,"dp_f4_mod_main");
asir_assert(ARG1(arg),O_LIST,"dp_f4_mod_main");
asir_assert(ARG2(arg),O_N,"dp_f4_mod_main");
f = (LIST)ARG0(arg); v = (LIST)ARG1(arg); m = QTOS((Q)ARG2(arg));
f = remove_zero_from_list(f);
if ( !BDY(f) ) {
*rp = f; return;
}
if ( !m )
error("dp_f4_mod_main : invalid argument");
create_order_spec(0,ARG3(arg),&ord);
dp_f4_mod_main(f,v,m,ord,rp);
}
void Pdp_gr_mod_main(arg,rp)
NODE arg;
LIST *rp;
{
LIST f,v;
Num homo;
int m;
struct order_spec *ord;
do_weyl = 0;
asir_assert(ARG0(arg),O_LIST,"dp_gr_mod_main");
asir_assert(ARG1(arg),O_LIST,"dp_gr_mod_main");
asir_assert(ARG2(arg),O_N,"dp_gr_mod_main");
asir_assert(ARG3(arg),O_N,"dp_gr_mod_main");
f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
f = remove_zero_from_list(f);
if ( !BDY(f) ) {
*rp = f; return;
}
homo = (Num)ARG2(arg); m = QTOS((Q)ARG3(arg));
if ( !m )
error("dp_gr_mod_main : invalid argument");
create_order_spec(0,ARG4(arg),&ord);
dp_gr_mod_main(f,v,homo,m,ord,rp);
}
void Pnd_f4(arg,rp)
NODE arg;
LIST *rp;
{
LIST f,v;
int m,homo,retdp;
Obj val;
struct order_spec *ord;
do_weyl = 0;
asir_assert(ARG0(arg),O_LIST,"nd_f4");
asir_assert(ARG1(arg),O_LIST,"nd_f4");
asir_assert(ARG2(arg),O_N,"nd_f4");
f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
f = remove_zero_from_list(f);
if ( !BDY(f) ) {
*rp = f; return;
}
m = QTOS((Q)ARG2(arg));
create_order_spec(0,ARG3(arg),&ord);
homo = retdp = 0;
if ( get_opt("homo",&val) && val ) homo = 1;
if ( get_opt("dp",&val) && val ) retdp = 1;
nd_gr(f,v,m,homo,retdp,1,ord,rp);
}
void Pnd_gr(arg,rp)
NODE arg;
LIST *rp;
{
LIST f,v;
int m,homo,retdp;
Obj val;
struct order_spec *ord;
do_weyl = 0;
asir_assert(ARG0(arg),O_LIST,"nd_gr");
asir_assert(ARG1(arg),O_LIST,"nd_gr");
asir_assert(ARG2(arg),O_N,"nd_gr");
f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
f = remove_zero_from_list(f);
if ( !BDY(f) ) {
*rp = f; return;
}
m = QTOS((Q)ARG2(arg));
create_order_spec(0,ARG3(arg),&ord);
homo = retdp = 0;
if ( get_opt("homo",&val) && val ) homo = 1;
if ( get_opt("dp",&val) && val ) retdp = 1;
nd_gr(f,v,m,homo,retdp,0,ord,rp);
}
void Pnd_gr_postproc(arg,rp)
NODE arg;
LIST *rp;
{
LIST f,v;
int m,do_check;
struct order_spec *ord;
do_weyl = 0;
asir_assert(ARG0(arg),O_LIST,"nd_gr");
asir_assert(ARG1(arg),O_LIST,"nd_gr");
asir_assert(ARG2(arg),O_N,"nd_gr");
f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
f = remove_zero_from_list(f);
if ( !BDY(f) ) {
*rp = f; return;
}
m = QTOS((Q)ARG2(arg));
create_order_spec(0,ARG3(arg),&ord);
do_check = ARG4(arg) ? 1 : 0;
nd_gr_postproc(f,v,m,ord,do_check,rp);
}
#if 0
void Pnd_gr_recompute_trace(arg,rp)
NODE arg;
LIST *rp;
{
LIST f,v,tlist;
int m;
struct order_spec *ord;
do_weyl = 0;
asir_assert(ARG0(arg),O_LIST,"nd_gr_recompute_trace");
asir_assert(ARG1(arg),O_LIST,"nd_gr_recompute_trace");
asir_assert(ARG2(arg),O_N,"nd_gr_recompute_trace");
f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
m = QTOS((Q)ARG2(arg));
create_order_spec(0,ARG3(arg),&ord);
tlist = (LIST)ARG4(arg);
nd_gr_recompute_trace(f,v,m,ord,tlist,rp);
}
#endif
Obj nd_btog_one(LIST f,LIST v,int m,struct order_spec *ord,LIST tlist,int pos);
Obj nd_btog(LIST f,LIST v,int m,struct order_spec *ord,LIST tlist);
void Pnd_btog(arg,rp)
NODE arg;
Obj *rp;
{
LIST f,v,tlist;
int m,ac,pos;
struct order_spec *ord;
do_weyl = 0;
asir_assert(ARG0(arg),O_LIST,"nd_btog");
asir_assert(ARG1(arg),O_LIST,"nd_btog");
asir_assert(ARG2(arg),O_N,"nd_btog");
f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
m = QTOS((Q)ARG2(arg));
create_order_spec(0,ARG3(arg),&ord);
tlist = (LIST)ARG4(arg);
if ( (ac = argc(arg)) == 6 ) {
asir_assert(ARG5(arg),O_N,"nd_btog");
pos = QTOS((Q)ARG5(arg));
*rp = nd_btog_one(f,v,m,ord,tlist,pos);
} else if ( ac == 5 )
*rp = nd_btog(f,v,m,ord,tlist);
else
error("nd_btog : argument mismatch");
}
void Pnd_weyl_gr_postproc(arg,rp)
NODE arg;
LIST *rp;
{
LIST f,v;
int m,do_check;
struct order_spec *ord;
do_weyl = 1;
asir_assert(ARG0(arg),O_LIST,"nd_gr");
asir_assert(ARG1(arg),O_LIST,"nd_gr");
asir_assert(ARG2(arg),O_N,"nd_gr");
f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
f = remove_zero_from_list(f);
if ( !BDY(f) ) {
*rp = f; do_weyl = 0; return;
}
m = QTOS((Q)ARG2(arg));
create_order_spec(0,ARG3(arg),&ord);
do_check = ARG4(arg) ? 1 : 0;
nd_gr_postproc(f,v,m,ord,do_check,rp);
do_weyl = 0;
}
void Pnd_gr_trace(arg,rp)
NODE arg;
LIST *rp;
{
LIST f,v;
int m,homo;
struct order_spec *ord;
do_weyl = 0;
asir_assert(ARG0(arg),O_LIST,"nd_gr_trace");
asir_assert(ARG1(arg),O_LIST,"nd_gr_trace");
asir_assert(ARG2(arg),O_N,"nd_gr_trace");
asir_assert(ARG3(arg),O_N,"nd_gr_trace");
f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
f = remove_zero_from_list(f);
if ( !BDY(f) ) {
*rp = f; return;
}
homo = QTOS((Q)ARG2(arg));
m = QTOS((Q)ARG3(arg));
create_order_spec(0,ARG4(arg),&ord);
nd_gr_trace(f,v,m,homo,0,ord,rp);
}
void Pnd_f4_trace(arg,rp)
NODE arg;
LIST *rp;
{
LIST f,v;
int m,homo;
struct order_spec *ord;
do_weyl = 0;
asir_assert(ARG0(arg),O_LIST,"nd_gr_trace");
asir_assert(ARG1(arg),O_LIST,"nd_gr_trace");
asir_assert(ARG2(arg),O_N,"nd_gr_trace");
asir_assert(ARG3(arg),O_N,"nd_gr_trace");
f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
f = remove_zero_from_list(f);
if ( !BDY(f) ) {
*rp = f; return;
}
homo = QTOS((Q)ARG2(arg));
m = QTOS((Q)ARG3(arg));
create_order_spec(0,ARG4(arg),&ord);
nd_gr_trace(f,v,m,homo,1,ord,rp);
}
void Pnd_weyl_gr(arg,rp)
NODE arg;
LIST *rp;
{
LIST f,v;
int m,homo,retdp;
Obj val;
struct order_spec *ord;
do_weyl = 1;
asir_assert(ARG0(arg),O_LIST,"nd_weyl_gr");
asir_assert(ARG1(arg),O_LIST,"nd_weyl_gr");
asir_assert(ARG2(arg),O_N,"nd_weyl_gr");
f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
f = remove_zero_from_list(f);
if ( !BDY(f) ) {
*rp = f; do_weyl = 0; return;
}
m = QTOS((Q)ARG2(arg));
create_order_spec(0,ARG3(arg),&ord);
homo = retdp = 0;
if ( get_opt("homo",&val) && val ) homo = 1;
if ( get_opt("dp",&val) && val ) retdp = 1;
nd_gr(f,v,m,homo,retdp,0,ord,rp);
do_weyl = 0;
}
void Pnd_weyl_gr_trace(arg,rp)
NODE arg;
LIST *rp;
{
LIST f,v;
int m,homo;
struct order_spec *ord;
do_weyl = 1;
asir_assert(ARG0(arg),O_LIST,"nd_weyl_gr_trace");
asir_assert(ARG1(arg),O_LIST,"nd_weyl_gr_trace");
asir_assert(ARG2(arg),O_N,"nd_weyl_gr_trace");
asir_assert(ARG3(arg),O_N,"nd_weyl_gr_trace");
f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
f = remove_zero_from_list(f);
if ( !BDY(f) ) {
*rp = f; do_weyl = 0; return;
}
homo = QTOS((Q)ARG2(arg));
m = QTOS((Q)ARG3(arg));
create_order_spec(0,ARG4(arg),&ord);
nd_gr_trace(f,v,m,homo,0,ord,rp);
do_weyl = 0;
}
void Pnd_nf(NODE arg,Obj *rp)
{
Obj f;
LIST g,v;
struct order_spec *ord;
do_weyl = 0;
asir_assert(ARG1(arg),O_LIST,"nd_nf");
asir_assert(ARG2(arg),O_LIST,"nd_nf");
asir_assert(ARG4(arg),O_N,"nd_nf");
f = (Obj)ARG0(arg);
g = (LIST)ARG1(arg); g = remove_zero_from_list(g);
if ( !BDY(g) ) {
*rp = f; return;
}
v = (LIST)ARG2(arg);
create_order_spec(0,ARG3(arg),&ord);
nd_nf_p(f,g,v,QTOS((Q)ARG4(arg)),ord,rp);
}
void Pnd_weyl_nf(NODE arg,Obj *rp)
{
Obj f;
LIST g,v;
struct order_spec *ord;
do_weyl = 1;
asir_assert(ARG1(arg),O_LIST,"nd_weyl_nf");
asir_assert(ARG2(arg),O_LIST,"nd_weyl_nf");
asir_assert(ARG4(arg),O_N,"nd_weyl_nf");
f = (Obj)ARG0(arg);
g = (LIST)ARG1(arg); g = remove_zero_from_list(g);
if ( !BDY(g) ) {
*rp = f; return;
}
v = (LIST)ARG2(arg);
create_order_spec(0,ARG3(arg),&ord);
nd_nf_p(f,g,v,QTOS((Q)ARG4(arg)),ord,rp);
}
/* for Weyl algebra */
void Pdp_weyl_gr_main(arg,rp)
NODE arg;
LIST *rp;
{
LIST f,v;
Num homo;
Q m;
int modular,ac;
struct order_spec *ord;
asir_assert(ARG0(arg),O_LIST,"dp_weyl_gr_main");
f = (LIST)ARG0(arg);
f = remove_zero_from_list(f);
if ( !BDY(f) ) {
*rp = f; return;
}
if ( (ac = argc(arg)) == 5 ) {
asir_assert(ARG1(arg),O_LIST,"dp_weyl_gr_main");
asir_assert(ARG2(arg),O_N,"dp_weyl_gr_main");
asir_assert(ARG3(arg),O_N,"dp_weyl_gr_main");
v = (LIST)ARG1(arg);
homo = (Num)ARG2(arg);
m = (Q)ARG3(arg);
if ( !m )
modular = 0;
else if ( PL(NM(m))>1 || (PL(NM(m)) == 1 && BD(NM(m))[0] >= 0x80000000) )
error("dp_weyl_gr_main : too large modulus");
else
modular = QTOS(m);
create_order_spec(0,ARG4(arg),&ord);
} else if ( current_option )
parse_gr_option(f,current_option,&v,&homo,&modular,&ord);
else if ( ac == 1 )
parse_gr_option(f,0,&v,&homo,&modular,&ord);
else
error("dp_weyl_gr_main : invalid argument");
do_weyl = 1;
dp_gr_main(f,v,homo,modular,0,ord,rp);
do_weyl = 0;
}
void Pdp_weyl_gr_f_main(arg,rp)
NODE arg;
LIST *rp;
{
LIST f,v;
Num homo;
struct order_spec *ord;
asir_assert(ARG0(arg),O_LIST,"dp_weyl_gr_main");
asir_assert(ARG1(arg),O_LIST,"dp_weyl_gr_main");
asir_assert(ARG2(arg),O_N,"dp_weyl_gr_main");
asir_assert(ARG3(arg),O_N,"dp_weyl_gr_main");
f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
f = remove_zero_from_list(f);
if ( !BDY(f) ) {
*rp = f; return;
}
homo = (Num)ARG2(arg);
create_order_spec(0,ARG3(arg),&ord);
do_weyl = 1;
dp_gr_main(f,v,homo,0,1,ord,rp);
do_weyl = 0;
}
void Pdp_weyl_f4_main(arg,rp)
NODE arg;
LIST *rp;
{
LIST f,v;
struct order_spec *ord;
asir_assert(ARG0(arg),O_LIST,"dp_weyl_f4_main");
asir_assert(ARG1(arg),O_LIST,"dp_weyl_f4_main");
f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
f = remove_zero_from_list(f);
if ( !BDY(f) ) {
*rp = f; return;
}
create_order_spec(0,ARG2(arg),&ord);
do_weyl = 1;
dp_f4_main(f,v,ord,rp);
do_weyl = 0;
}
void Pdp_weyl_f4_mod_main(arg,rp)
NODE arg;
LIST *rp;
{
LIST f,v;
int m;
struct order_spec *ord;
asir_assert(ARG0(arg),O_LIST,"dp_weyl_f4_main");
asir_assert(ARG1(arg),O_LIST,"dp_weyl_f4_main");
asir_assert(ARG2(arg),O_N,"dp_f4_main");
f = (LIST)ARG0(arg); v = (LIST)ARG1(arg); m = QTOS((Q)ARG2(arg));
f = remove_zero_from_list(f);
if ( !BDY(f) ) {
*rp = f; return;
}
if ( !m )
error("dp_weyl_f4_mod_main : invalid argument");
create_order_spec(0,ARG3(arg),&ord);
do_weyl = 1;
dp_f4_mod_main(f,v,m,ord,rp);
do_weyl = 0;
}
void Pdp_weyl_gr_mod_main(arg,rp)
NODE arg;
LIST *rp;
{
LIST f,v;
Num homo;
int m;
struct order_spec *ord;
asir_assert(ARG0(arg),O_LIST,"dp_weyl_gr_mod_main");
asir_assert(ARG1(arg),O_LIST,"dp_weyl_gr_mod_main");
asir_assert(ARG2(arg),O_N,"dp_weyl_gr_mod_main");
asir_assert(ARG3(arg),O_N,"dp_weyl_gr_mod_main");
f = (LIST)ARG0(arg); v = (LIST)ARG1(arg);
f = remove_zero_from_list(f);
if ( !BDY(f) ) {
*rp = f; return;
}
homo = (Num)ARG2(arg); m = QTOS((Q)ARG3(arg));
if ( !m )
error("dp_weyl_gr_mod_main : invalid argument");
create_order_spec(0,ARG4(arg),&ord);
do_weyl = 1;
dp_gr_mod_main(f,v,homo,m,ord,rp);
do_weyl = 0;
}
VECT current_dl_weight_vector_obj;
int *current_dl_weight_vector;
void Pdp_set_weight(arg,rp)
NODE arg;
VECT *rp;
{
VECT v;
int i,n;
NODE node;
if ( !arg )
*rp = current_dl_weight_vector_obj;
else if ( !ARG0(arg) ) {
current_dl_weight_vector_obj = 0;
current_dl_weight_vector = 0;
*rp = 0;
} else {
if ( OID(ARG0(arg)) != O_VECT && OID(ARG0(arg)) != O_LIST )
error("dp_set_weight : invalid argument");
if ( OID(ARG0(arg)) == O_VECT )
v = (VECT)ARG0(arg);
else {
node = (NODE)BDY((LIST)ARG0(arg));
n = length(node);
MKVECT(v,n);
for ( i = 0; i < n; i++, node = NEXT(node) )
BDY(v)[i] = BDY(node);
}
current_dl_weight_vector_obj = v;
n = v->len;
current_dl_weight_vector = (int *)CALLOC(n,sizeof(int));
for ( i = 0; i < n; i++ )
current_dl_weight_vector[i] = QTOS((Q)v->body[i]);
*rp = v;
}
}
VECT current_module_weight_vector_obj;
int *current_module_weight_vector;
void Pdp_set_module_weight(arg,rp)
NODE arg;
VECT *rp;
{
VECT v;
int i,n;
NODE node;
if ( !arg )
*rp = current_module_weight_vector_obj;
else if ( !ARG0(arg) ) {
current_module_weight_vector_obj = 0;
current_module_weight_vector = 0;
*rp = 0;
} else {
if ( OID(ARG0(arg)) != O_VECT && OID(ARG0(arg)) != O_LIST )
error("dp_module_set_weight : invalid argument");
if ( OID(ARG0(arg)) == O_VECT )
v = (VECT)ARG0(arg);
else {
node = (NODE)BDY((LIST)ARG0(arg));
n = length(node);
MKVECT(v,n);
for ( i = 0; i < n; i++, node = NEXT(node) )
BDY(v)[i] = BDY(node);
}
current_module_weight_vector_obj = v;
n = v->len;
current_module_weight_vector = (int *)CALLOC(n,sizeof(int));
for ( i = 0; i < n; i++ )
current_module_weight_vector[i] = QTOS((Q)v->body[i]);
*rp = v;
}
}
VECT current_top_weight_vector_obj;
N *current_top_weight_vector;
void Pdp_set_top_weight(arg,rp)
NODE arg;
VECT *rp;
{
VECT v;
int i,n;
NODE node;
if ( !arg )
*rp = current_top_weight_vector_obj;
else if ( !ARG0(arg) ) {
current_top_weight_vector = 0;
current_top_weight_vector_obj = 0;
*rp = 0;
} else {
if ( OID(ARG0(arg)) != O_VECT && OID(ARG0(arg)) != O_LIST )
error("dp_set_top_weight : invalid argument");
if ( OID(ARG0(arg)) == O_VECT )
v = (VECT)ARG0(arg);
else {
node = (NODE)BDY((LIST)ARG0(arg));
n = length(node);
MKVECT(v,n);
for ( i = 0; i < n; i++, node = NEXT(node) )
BDY(v)[i] = BDY(node);
}
for ( i = 0; i < v->len; i++ )
if ( !INT(BDY(v)[i]) || (BDY(v)[i] && SGN((Q)BDY(v)[i]) < 0) )
error("dp_set_top_weight : each element must be a non-negative integer");
current_top_weight_vector_obj = v;
current_top_weight_vector = (N *)MALLOC(v->len*sizeof(N));
for ( i = 0; i < v->len; i++ ) {
current_top_weight_vector[i] = !BDY(v)[i]?0:NM((Q)BDY(v)[i]);
}
*rp = current_top_weight_vector_obj;
}
}
LIST get_denomlist();
void Pdp_get_denomlist(LIST *rp)
{
*rp = get_denomlist();
}
static VECT current_weyl_weight_vector_obj;
int *current_weyl_weight_vector;
void Pdp_weyl_set_weight(arg,rp)
NODE arg;
VECT *rp;
{
VECT v;
NODE node;
int i,n;
if ( !arg )
*rp = current_weyl_weight_vector_obj;
else if ( !ARG0(arg) ) {
current_weyl_weight_vector_obj = 0;
current_weyl_weight_vector = 0;
*rp = 0;
} else {
if ( OID(ARG0(arg)) != O_VECT && OID(ARG0(arg)) != O_LIST )
error("dp_weyl_set_weight : invalid argument");
if ( OID(ARG0(arg)) == O_VECT )
v = (VECT)ARG0(arg);
else {
node = (NODE)BDY((LIST)ARG0(arg));
n = length(node);
MKVECT(v,n);
for ( i = 0; i < n; i++, node = NEXT(node) )
BDY(v)[i] = BDY(node);
}
current_weyl_weight_vector_obj = v;
n = v->len;
current_weyl_weight_vector = (int *)CALLOC(n,sizeof(int));
for ( i = 0; i < n; i++ )
current_weyl_weight_vector[i] = QTOS((Q)v->body[i]);
*rp = v;
}
}
NODE mono_raddec(NODE ideal);
void Pdp_mono_raddec(NODE arg,LIST *rp)
{
NODE ideal,rd,t,t1,r,r1,u;
VL vl0,vl;
int nv,i,bpi;
int *s;
DP dp;
P *v;
LIST l;
ideal = BDY((LIST)ARG0(arg));
if ( !ideal ) *rp = (LIST)ARG0(arg);
else {
t = BDY((LIST)ARG1(arg));
nv = length(t);
v = (P)MALLOC(nv*sizeof(P));
for ( vl0 = 0, i = 0; t; t = NEXT(t), i++ ) {
NEXTVL(vl0,vl); VR(vl) = VR((P)BDY(t));
MKV(VR(vl),v[i]);
}
if ( vl0 ) NEXT(vl) = 0;
for ( t = 0, r = ideal; r; r = NEXT(r) ) {
ptod(CO,vl0,BDY(r),&dp); MKNODE(t1,dp,t); t = t1;
}
rd = mono_raddec(t);
r = 0;
bpi = (sizeof(int)/sizeof(char))*8;
for ( u = rd; u; u = NEXT(u) ) {
s = (int *)BDY(u);
for ( i = nv-1, t = 0; i >= 0; i-- )
if ( s[i/bpi]&(1<<(i%bpi)) ) {
MKNODE(t1,v[i],t); t = t1;
}
MKLIST(l,t); MKNODE(r1,l,r); r = r1;
}
MKLIST(*rp,r);
}
}
void Pdp_mono_reduce(NODE arg,LIST *rp)
{
NODE t,t0,t1,r0,r;
int i,n;
DP m;
DP *a;
t0 = BDY((LIST)ARG0(arg));
t1 = BDY((LIST)ARG1(arg));
n = length(t0);
a = (DP *)MALLOC(n*sizeof(DP));
for ( i = 0; i < n; i++, t0 = NEXT(t0) ) a[i] = (DP)BDY(t0);
for ( t = t1; t; t = NEXT(t) ) {
m = (DP)BDY(t);
for ( i = 0; i < n; i++ )
if ( a[i] && dp_redble(a[i],m) ) a[i] = 0;
}
for ( i = n-1, r0 = 0; i >= 0; i-- )
if ( a[i] ) { NEXTNODE(r0,r); BDY(r) = a[i]; }
if ( r0 ) NEXT(r) = 0;
MKLIST(*rp,r0);
}
LIST remove_zero_from_list(LIST l)
{
NODE n,r0,r;
LIST rl;
asir_assert(l,O_LIST,"remove_zero_from_list");
n = BDY(l);
for ( r0 = 0; n; n = NEXT(n) )
if ( BDY(n) ) {
NEXTNODE(r0,r);
BDY(r) = BDY(n);
}
if ( r0 )
NEXT(r) = 0;
MKLIST(rl,r0);
return rl;
}
int get_field_type(P p)
{
int type,t;
DCP dc;
if ( !p )
return 0;
else if ( NUM(p) )
return NID((Num)p);
else {
type = 0;
for ( dc = DC(p); dc; dc = NEXT(dc) ) {
t = get_field_type(COEF(dc));
if ( !t )
continue;
if ( t < 0 )
return t;
if ( !type )
type = t;
else if ( t != type )
return -1;
}
return type;
}
}
void Pdpv_ord(NODE arg,Obj *rp)
{
int ac,id;
LIST shift;
ac = argc(arg);
if ( ac ) {
id = QTOS((Q)ARG0(arg));
if ( ac > 1 && ARG1(arg) && OID((Obj)ARG1(arg))==O_LIST )
shift = (LIST)ARG1(arg);
else
shift = 0;
create_modorder_spec(id,shift,&dp_current_modspec);
}
*rp = dp_current_modspec->obj;
}
void Pdpv_ht(NODE arg,LIST *rp)
{
NODE n;
DP ht;
int pos;
DPV p;
Q q;
asir_assert(ARG0(arg),O_DPV,"dpv_ht");
p = (DPV)ARG0(arg);
pos = dpv_hp(p);
if ( pos < 0 )
ht = 0;
else
dp_ht(BDY(p)[pos],&ht);
STOQ(pos,q);
n = mknode(2,q,ht);
MKLIST(*rp,n);
}
void Pdpv_hm(NODE arg,LIST *rp)
{
NODE n;
DP ht;
int pos;
DPV p;
Q q;
asir_assert(ARG0(arg),O_DPV,"dpv_hm");
p = (DPV)ARG0(arg);
pos = dpv_hp(p);
if ( pos < 0 )
ht = 0;
else
dp_hm(BDY(p)[pos],&ht);
STOQ(pos,q);
n = mknode(2,q,ht);
MKLIST(*rp,n);
}
void Pdpv_hc(NODE arg,LIST *rp)
{
NODE n;
P hc;
int pos;
DPV p;
Q q;
asir_assert(ARG0(arg),O_DPV,"dpv_hc");
p = (DPV)ARG0(arg);
pos = dpv_hp(p);
if ( pos < 0 )
hc = 0;
else
hc = BDY(BDY(p)[pos])->c;
STOQ(pos,q);
n = mknode(2,q,hc);
MKLIST(*rp,n);
}
int dpv_hp(DPV p)
{
int len,i,maxp,maxw,w,slen;
int *shift;
DP *e;
len = p->len;
e = p->body;
slen = dp_current_modspec->len;
shift = dp_current_modspec->degree_shift;
switch ( dp_current_modspec->id ) {
case ORD_REVGRADLEX:
for ( maxp = -1, i = 0; i < len; i++ )
if ( !e[i] ) continue;
else if ( maxp < 0 ) {
maxw = BDY(e[i])->dl->td+(i<slen?shift[i]:0); maxp = i;
} else {
w = BDY(e[i])->dl->td+(i<slen?shift[i]:0);
if ( w >= maxw ) {
maxw = w; maxp = i;
}
}
return maxp;
case ORD_GRADLEX:
for ( maxp = -1, i = 0; i < len; i++ )
if ( !e[i] ) continue;
else if ( maxp < 0 ) {
maxw = BDY(e[i])->dl->td+(i<slen?shift[i]:0); maxp = i;
} else {
w = BDY(e[i])->dl->td+(i<slen?shift[i]:0);
if ( w > maxw ) {
maxw = w; maxp = i;
}
}
return maxp;
break;
case ORD_LEX:
for ( i = 0; i < len; i++ )
if ( e[i] ) return i;
return -1;
break;
}
}
int get_opt(char *key0,Obj *r) {
NODE tt,p;
char *key;
if ( current_option ) {
for ( tt = current_option; tt; tt = NEXT(tt) ) {
p = BDY((LIST)BDY(tt));
key = BDY((STRING)BDY(p));
/* value = (Obj)BDY(NEXT(p)); */
if ( !strcmp(key,key0) ) {
*r = (Obj)BDY(NEXT(p));
return 1;
}
}
}
return 0;
}