OpenXM_contrib2/asir2000/builtin/gr.c - diff

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Diff for /OpenXM_contrib2/asir2000/builtin/gr.c between version 1.5 and 1.12

version 1.5, 2000/05/29 08:54:45

version 1.12, 2000/12/05 06:59:15

Line 1

/* $OpenXM: OpenXM_contrib2/asir2000/builtin/gr.c,v 1.4 2000/04/25 04:07:58 noro Exp $ */

* 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

* business use.

* (2) The SOFTWARE is protected by the Copyright Law of Japan and

* 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.

* (3) An explicit reference to this SOFTWARE and its copyright owner

* shall be made on your publication or presentation in any form of the

* results obtained by use of the SOFTWARE.

* (4) In the event that you modify the SOFTWARE, you shall notify FLL by

* e-mail at risa-admin@sec.flab.fujitsu.co.jp of the detailed specification

* for such modification or the source code of the modified part of the

* SOFTWARE.

* THE SOFTWARE IS PROVIDED AS IS WITHOUT ANY WARRANTY OF ANY KIND. FLL

* MAKES ABSOLUTELY NO WARRANTIES, EXPRESSED, IMPLIED OR STATUTORY, AND

* EXPRESSLY DISCLAIMS ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS

* FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT OF THIRD PARTIES'

* RIGHTS. NO FLL DEALER, AGENT, EMPLOYEES IS AUTHORIZED TO MAKE ANY

* MODIFICATIONS, EXTENSIONS, OR ADDITIONS TO THIS WARRANTY.

* UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL THEORY, TORT, CONTRACT,

* OR OTHERWISE, SHALL FLL BE LIABLE TO YOU OR ANY OTHER PERSON FOR ANY

* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, PUNITIVE OR CONSEQUENTIAL

* DAMAGES OF ANY CHARACTER, INCLUDING, WITHOUT LIMITATION, DAMAGES

* ARISING OUT OF OR RELATING TO THE SOFTWARE OR THIS AGREEMENT, DAMAGES

* FOR LOSS OF GOODWILL, WORK STOPPAGE, OR LOSS OF DATA, OR FOR ANY

* DAMAGES, EVEN IF FLL SHALL HAVE BEEN INFORMED OF THE POSSIBILITY OF

* SUCH DAMAGES, OR FOR ANY CLAIM BY ANY OTHER PARTY. EVEN IF A PART

* OF THE SOFTWARE HAS BEEN DEVELOPED BY A THIRD PARTY, THE THIRD PARTY

* DEVELOPER SHALL HAVE NO LIABILITY IN CONNECTION WITH THE USE,

* PERFORMANCE OR NON-PERFORMANCE OF THE SOFTWARE.

* $OpenXM: OpenXM_contrib2/asir2000/builtin/gr.c,v 1.11 2000/12/05 01:24:50 noro Exp $

#include "ca.h"

#include "parse.h"

#include "base.h"

Line 35 int TP,NBP,NMP,NFP,NDP,ZR,NZR;

Line 83 int TP,NBP,NMP,NFP,NDP,ZR,NZR;

extern int (*cmpdl)();

extern int do_weyl;

void Pdp_gr_flags(), Pdp_gr_print();

void Pdp_gr_main(),Pdp_gr_mod_main(),Pdp_f4_main(),Pdp_f4_mod_main();

void print_stat(void);

void init_stat(void);

int dp_load_t(int,DP *);

void dp_load(int,DP *);

void dp_save(int,DP);

void dp_save(int,Obj,char *);

void dp_make_flaglist(LIST *);

void dp_set_flag(Obj,Obj);

int membercheck(NODE,NODE);

Line 60 DP_pairs updpairs(DP_pairs,NODE,int);

Line 105 DP_pairs updpairs(DP_pairs,NODE,int);

void _dp_nf_ptozp(NODE,DP,DP *,int,int,DP *);

void _dp_nf_ptozp_mpi(NODE,DP,DP *,int,int,DP *);

void _dp_nf(NODE,DP,DP *,int,DP *);

void _dp_nf_mod(NODE,DP,DP *,int,int,DP *);

void interreduce_mod(NODE,int,int);

NODE gb_mod(NODE,int);

NODE gbd(NODE,int,NODE,NODE);

NODE gb(NODE,int,NODE);

Line 96 void dp_f4_mod_main(LIST,LIST,int,struct order_spec *,

Line 139 void dp_f4_mod_main(LIST,LIST,int,struct order_spec *,

double get_rtime();

void _dpmod_to_vect(DP,DL *,int *);

void dp_to_vect(DP,DL *,Q *);

NODE dp_dllist(DP f),symb_merge(NODE,NODE,int);

NODE dp_dllist(DP f);

NODE symb_merge(NODE,NODE,int),_symb_merge(NODE,NODE,int);

extern int dp_nelim;

extern int dp_fcoeffs;

static DP *ps,*psm;

Line 113 static int NoCriB = 0;

Line 156 static int NoCriB = 0;

static int NoGC = 0;

static int NoMC = 0;

static int NoRA = 0;

int Print = 0;

int DP_Print = 0;

static int PrintShort = 0;

static int DP_PrintShort = 0;

static int ShowMag = 0;

static int Stat = 0;

static int Multiple = 0;

static int Denominator = 1;

static int Top = 0;

static int Reverse = 0;

static int InterReduce = 0;

static int Max_mag = 0;

static char *Demand = 0;

static int PtozpRA = 0;

LIST Dist = 0;

int NoGCD = 0;

int GenTrace = 0;

int OXCheck = -1;

int doing_f4;

NODE TraceList;

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);

}

void Pdp_gr_print(arg,rp)

NODE arg;

Q *rp;

{

Q q;

if ( arg ) {

asir_assert(ARG0(arg),O_N,"dp_gr_print");

q = (Q)ARG0(arg); Print = QTOS(q);

} else

STOQ(Print,q);

*rp = q;

}

void Pdp_gr_main(arg,rp)

NODE arg;

LIST *rp;

{

LIST f,v;

Num homo;

Q m;

int modular;

struct order_spec ord;

asir_assert(ARG0(arg),O_LIST,"dp_gr_main");

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");

f = (LIST)ARG0(arg); 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(ARG4(arg),&ord);

dp_gr_main(f,v,homo,modular,&ord,rp);

}

void Pdp_f4_main(arg,rp)

NODE arg;

LIST *rp;

{

LIST f,v;

struct order_spec ord;

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);

create_order_spec(ARG2(arg),&ord);

dp_f4_main(f,v,&ord,rp);

}

void Pdp_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_f4_main");

asir_assert(ARG1(arg),O_LIST,"dp_f4_main");

asir_assert(ARG2(arg),O_N,"dp_f4_main");

f = (LIST)ARG0(arg); v = (LIST)ARG1(arg); m = QTOS((Q)ARG2(arg));

create_order_spec(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;

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);

homo = (Num)ARG2(arg); m = QTOS((Q)ARG3(arg));

create_order_spec(ARG4(arg),&ord);

dp_gr_mod_main(f,v,homo,m,&ord,rp);

}

int eqdl(nv,dl1,dl2)

int nv;

DL dl1,dl2;

Line 367 LIST *rp;

Line 299 LIST *rp;

if ( homo ) {

initd(&ord1); CNVars = NVars+1;

}

if ( Print && modular ) {

if ( DP_Print && modular ) {

fprintf(asir_out,"mod= %d, eval = ",m); printsubst(subst);

}

x = gb(s,m,subst);

Line 576 NODE f;

Line 508 NODE f;

while ( d ) {

get_eg(&tmp0);

minsugar(d,&dm,&dr); d = dr;

if ( Print )

if ( DP_Print )

fprintf(asir_out,"sugar=%d\n",dm->sugar);

blist = 0; s0 = 0;

/* asph : sum of all head terms of spoly */

Line 617 NODE f;

Line 549 NODE f;

dp_to_vect(BDY(r),at,(Q *)mat->body[i]);

get_eg(&tmp1); add_eg(&eg_symb,&tmp0,&tmp1);

init_eg(&eg_split_symb); add_eg(&eg_split_symb,&tmp0,&tmp1);

if ( Print ) {

if ( DP_Print ) {

print_eg("Symb",&eg_split_symb);

fprintf(asir_out,"mat : %d x %d",row,col);

fflush(asir_out);

Line 627 NODE f;

Line 559 NODE f;

#else

rank = generic_gauss_elim(mat,&nm,&dn,&rind,&cind);

#endif

if ( Print )

if ( DP_Print )

fprintf(asir_out,"done rank = %d\n",rank,row,col);

for ( i = 0; i < rank; i++ ) {

for ( k = 0; k < nred; k++ )

Line 652 NODE f;

Line 584 NODE f;

}

if ( Print ) {

if ( DP_Print ) {

print_eg("Symb",&eg_symb);

print_eg("Mod",&eg_mod); print_eg("GaussElim",&eg_elim);

print_eg("ChRem",&eg_chrem); print_eg("IntToRat",&eg_intrat);

Line 694 int m;

Line 626 int m;

while ( d ) {

get_eg(&tmp0);

minsugar(d,&dm,&dr); d = dr;

if ( Print )

if ( DP_Print )

fprintf(asir_out,"sugar=%d\n",dm->sugar);

blist = 0; s0 = 0;

/* asph : sum of all head terms of spoly */

for ( t = dm; t; t = NEXT(t) ) {

_dp_sp_mod(ps[t->dp1],ps[t->dp2],m,&sp);

_dp_sp_mod_dup(ps[t->dp1],ps[t->dp2],m,&sp);

if ( sp ) {

MKNODE(bt,sp,blist); blist = bt;

s0 = symb_merge(s0,dp_dllist(sp),nv);

Line 714 int m;

Line 646 int m;

dltod(BDY(s),nv,&tdp);

dp_subd(tdp,ps[(int)BDY(r)],&sd);

_dp_mod(sd,m,0,&sdm);

_mulmd(CO,m,ps[(int)BDY(r)],sdm,&f2);

_mulmd_dup(m,sdm,ps[(int)BDY(r)],&f2);

MKNODE(bt,f2,blist); blist = bt;

s = symb_merge(s,dp_dllist(f2),nv);

nred++;

Line 789 int m;

Line 721 int m;

for ( j = 0; j < spcol; j++ )

if ( spmat[i][j] )

nonzero++;

if ( Print )

if ( DP_Print )

fprintf(asir_out,"spmat : %d x %d (nonzero=%f%%)...",

nsp,spcol,((double)nonzero*100)/(nsp*spcol));

rank = generic_gauss_elim_mod(spmat,nsp,spcol,m,colstat);

Line 797 int m;

Line 729 int m;

get_eg(&tmp1); add_eg(&eg_elim2,&tmp0,&tmp1);

init_eg(&eg_split_elim2); add_eg(&eg_split_elim2,&tmp0,&tmp1);

if ( Print ) {

if ( DP_Print ) {

fprintf(asir_out,"done rank = %d\n",rank,row,col);

print_eg("Symb",&eg_split_symb);

print_eg("Elim1",&eg_split_elim1);

Line 807 int m;

Line 739 int m;

for ( j = 0, i = 0; j < spcol; j++ )

if ( colstat[j] ) {

mp0 = 0;

NEXTMP(mp0,mp); mp->dl = st[j]; mp->c = STOI(1);

NEXTMP(mp0,mp);

_dltodl(st[j],&mp->dl);

mp->c = STOI(1);

for ( k = j+1; k < spcol; k++ )

if ( !colstat[k] && spmat[i][k] ) {

NEXTMP(mp0,mp); mp->dl = st[k];

NEXTMP(mp0,mp);

_dltodl(st[k],&mp->dl);

mp->c = STOI(spmat[i][k]);

}

NEXT(mp) = 0;

Line 821 int m;

Line 756 int m;

gall = append_one(gall,nh);

i++;

}

for ( i = 0, r = blist; i < row; i++, r = NEXT(r) )

_free_dp(BDY(r));

}

if ( Print ) {

if ( DP_Print ) {

print_eg("Symb",&eg_symb);

print_eg("Elim1",&eg_elim1);

print_eg("Elim2",&eg_elim2);

Line 956 NODE f,*r;

Line 893 NODE f,*r;

int m;

{

int i;

NODE s,s0;

NODE s,s0,f0;

f = NODE_sortb(f,1);

f0 = f = NODE_sortb(f,1);

psn = length(f); pslen = 2*psn;

ps = (DP *)MALLOC(pslen*sizeof(DP));

psh = (DL *)MALLOC(pslen*sizeof(DL));

Line 967 int m;

Line 904 int m;

for ( i = 0; i < psn; i++, f = NEXT(f) ) {

prim_part((DP)BDY(f),m,&ps[i]);

if ( Demand )

dp_save(i,ps[i]);

dp_save(i,(Obj)ps[i],0);

psh[i] = BDY(ps[i])->dl;

pss[i] = ps[i]->sugar;

psc[i] = BDY(ps[i])->c;

}

if ( GenTrace && (OXCheck >= 0) ) {

Q q;

STRING fname;

LIST input;

NODE arg;

Obj dmy;

STOQ(OXCheck,q);

MKSTR(fname,"register_input");

MKLIST(input,f0);

arg = mknode(3,q,fname,input);

Pox_cmo_rpc(arg,&dmy);

}

for ( s0 = 0, i = 0; i < psn; i++ ) {

NEXTNODE(s0,s); BDY(s) = (pointer)i;

}

Line 983 void prim_part(f,m,r)

Line 933 void prim_part(f,m,r)

DP f,*r;

int m;

{

P d,t;

if ( m > 0 ) {

if ( PCoeffs )

dp_prim_mod(f,m,r);

Line 995 int m;

Line 947 int m;

dp_prim(f,r);

else

dp_ptozp(f,r);

if ( GenTrace && TraceList ) {

divsp(CO,BDY(f)->c,BDY(*r)->c,&d);

mulp(CO,(P)ARG3(BDY((LIST)BDY(TraceList))),d,&t);

ARG3(BDY((LIST)BDY(TraceList))) = t;

}

Line 1077 NODE *h;

Line 1034 NODE *h;

if ( NoRA ) {

*h = in; return;

}

if ( Print || PrintShort ) {

if ( DP_Print || DP_PrintShort ) {

fprintf(asir_out,"reduceall\n"); fflush(asir_out);

}

r = NODE_sortbi(in,0);

Line 1092 NODE *h;

Line 1049 NODE *h;

}

get_eg(&tmp0);

dp_load(w[i],&ps[w[i]]);

_dp_nf(top,ps[w[i]],ps,1,&g);

if ( GenTrace ) {

Q q;

NODE node;

LIST hist;

STOQ(w[i],q);

node = mknode(4,ONE,q,ONE,ONE);

MKLIST(hist,node);

MKNODE(TraceList,hist,0);

}

if ( !PtozpRA || !Multiple )

_dp_nf(top,ps[w[i]],ps,1,&g);

else

Line 1104 NODE *h;

Line 1070 NODE *h;

#endif

prim_part(g,0,&g1);

get_eg(&tmp1); add_eg(&eg_ra,&tmp0,&tmp1);

if ( Print || PrintShort ) {

if ( DP_Print || DP_PrintShort ) {

fprintf(asir_out,"."); fflush(asir_out);

}

w[i] = newps(g1,0,(NODE)0);

Line 1113 NODE *h;

Line 1079 NODE *h;

MKNODE(t,(pointer)w[j],top); top = t;

}

*h = top;

if ( Print || PrintShort )

if ( DP_Print || DP_PrintShort )

fprintf(asir_out,"\n");

}

Line 1125 NODE *h;

Line 1091 NODE *h;

NODE r,t,top;

int n,i,j;

int *w;

DP g;

DP g,p;

struct oEGT tmp0,tmp1;

if ( NoRA ) {

*h = in; return;

}

if ( Print || PrintShort ) {

if ( DP_Print || DP_PrintShort ) {

fprintf(asir_out,"reduceall\n"); fflush(asir_out);

}

r = NODE_sortbi(in,0);

Line 1147 NODE *h;

Line 1113 NODE *h;

get_eg(&tmp0);

if ( PCoeffs )

dp_nf_mod(top,ps[w[i]],ps,m,1,&g);

else

else {

_dp_nf_mod(top,ps[w[i]],ps,m,1,&g);

dpto_dp(ps[w[i]],&p);

_dp_nf_mod_destructive(top,p,ps,m,1,&g);

}

get_eg(&tmp1); add_eg(&eg_ra,&tmp0,&tmp1);

if ( Print || PrintShort ) {

if ( DP_Print || DP_PrintShort ) {

fprintf(asir_out,"."); fflush(asir_out);

}

w[i] = newps_mod(g,m);

Line 1159 NODE *h;

Line 1127 NODE *h;

MKNODE(t,(pointer)w[j],top); top = t;

}

*h = top;

if ( Print || PrintShort )

if ( DP_Print || DP_PrintShort )

fprintf(asir_out,"\n");

}

Line 1184 NODE subst;

Line 1152 NODE subst;

ps[psn] = a;

else

ps[psn] = 0;

dp_save(psn,a);

dp_save(psn,(Obj)a,0);

} else

ps[psn] = a;

psh[psn] = BDY(a)->dl;

Line 1192 NODE subst;

Line 1160 NODE subst;

psc[psn] = BDY(a)->c;

if ( m )

_dp_mod(a,m,subst,&psm[psn]);

if ( GenTrace ) {

NODE tn,tr,tr1;

LIST trace;

/* reverse the TraceList */

tn = TraceList;

for ( tr = 0; tn; tn = NEXT(tn) ) {

MKNODE(tr1,BDY(tn),tr); tr = tr1;

}

MKLIST(trace,tr);

if ( OXCheck >= 0 ) {

NODE arg;

Q q1,q2;

STRING fname;

Obj dmy;

STOQ(OXCheck,q1);

MKSTR(fname,"check_trace");

STOQ(psn,q2);

arg = mknode(5,q1,fname,a,q2,trace);

Pox_cmo_rpc(arg,&dmy);

} else

dp_save(psn,(Obj)trace,"t");

TraceList = 0;

}

return psn++;

}

Line 1267 NODE f,*g;

Line 1260 NODE f,*g;

}

for ( top = 0, i = n-1; i >= 0; i-- )

if ( r[i] >= 0 ) {

dp_load(r[i],&ps[r[i]]); dp_dehomo(ps[r[i]],&u); j = newps(u,0,0);

dp_load(r[i],&ps[r[i]]); dp_dehomo(ps[r[i]],&u);

if ( GenTrace ) {

Q q;

LIST hist;

NODE node;

STOQ(r[i],q);

node = mknode(4,0,q,0,0);

MKLIST(hist,node);

MKNODE(TraceList,hist,0);

}

j = newps(u,0,0);

MKNODE(t,j,top); top = t;

}

*g = top;

Line 1355 NODE subst;

Line 1359 NODE subst;

struct oEGT tnf0,tnf1,tnfm0,tnfm1,tpz0,tpz1,tsp0,tsp1,tspm0,tspm1,tnp0,tnp1,tmp0,tmp1;

int skip_nf_flag;

double t_0;

Q q;

int new_sugar;

static prev_sugar = -1;

Max_mag = 0;

Line 1380 NODE subst;

Line 1386 NODE subst;

get_eg(&tmp1); add_eg(&eg_mp,&tmp0,&tmp1);

if ( m ) {

get_eg(&tspm0);

_dp_sp_mod(psm[l->dp1],psm[l->dp2],m,&h);

_dp_sp_mod_dup(psm[l->dp1],psm[l->dp2],m,&h);

if ( h )

new_sugar = h->sugar;

get_eg(&tspm1); add_eg(&eg_spm,&tspm0,&tspm1);

get_eg(&tnfm0);

_dp_nf_mod(gall,h,psm,m,0,&nfm);

_dp_nf_mod_destructive(gall,h,psm,m,0,&nfm);

get_eg(&tnfm1); add_eg(&eg_nfm,&tnfm0,&tnfm1);

} else

nfm = (DP)1;

Line 1402 NODE subst;

Line 1410 NODE subst;

}

} else

dp_sp(ps[l->dp1],ps[l->dp2],&h);

if ( GenTrace ) {

STOQ(l->dp1,q); ARG1(BDY((LIST)BDY(NEXT(TraceList)))) = q;

STOQ(l->dp2,q); ARG1(BDY((LIST)BDY(TraceList))) = q;

}

if ( h )

new_sugar = h->sugar;

get_eg(&tsp1); add_eg(&eg_sp,&tsp0,&tsp1);

get_eg(&tnf0);

t_0 = get_rtime();

Line 1413 NODE subst;

Line 1427 NODE subst;

#else

_dp_nf_ptozp(gall,h,ps,!Top,Multiple,&nf);

#endif

if ( Print )

if ( DP_Print )

fprintf(asir_out,"(%.3g)",get_rtime()-t_0);

get_eg(&tnf1); add_eg(&eg_nf,&tnf0,&tnf1);

} else

Line 1440 skip_nf:

Line 1454 skip_nf:

mag += p_mag((P)mp->c);

Max_mag = MAX(Max_mag,mag);

}

if ( Print ) {

if ( DP_Print ) {

if ( !prev )

fprintf(asir_out,"\n");

print_split_e(&tnf0,&tnf1); print_split_e(&tpz0,&tpz1);

Line 1451 skip_nf:

Line 1465 skip_nf:

if ( ShowMag )

fprintf(asir_out,",mag=%d",mag);

fprintf(asir_out,"\n"); fflush(asir_out);

} else if ( PrintShort ) {

} else if ( DP_PrintShort ) {

fprintf(asir_out,"+"); fflush(asir_out);

}

prev = 1;

Line 1459 skip_nf:

Line 1473 skip_nf:

if ( m )

add_eg(&eg_znfm,&tnfm0,&tnfm1);

ZR++;

if ( Print || PrintShort ) {

if ( DP_Print || DP_PrintShort ) {

if ( h && (h->sugar != prev_sugar) ) {

if ( new_sugar != prev_sugar ) {

fprintf(asir_out,"[%d]",h->sugar);

fprintf(asir_out,"[%d]",new_sugar);

prev_sugar = h->sugar;

prev_sugar = new_sugar;

}

fprintf(asir_out,"."); fflush(asir_out); prev = 0;

}

if ( Print || PrintShort )

if ( DP_Print || DP_PrintShort )

fprintf(asir_out,"gb done\n");

return g;

}

Line 1508 NODE dlist;

Line 1522 NODE dlist;

l->dp2 = QTOS((Q)BDY(pair));

if ( m ) {

get_eg(&tspm0);

_dp_sp_mod(psm[l->dp1],psm[l->dp2],m,&h);

_dp_sp_mod_dup(ps[l->dp1],ps[l->dp2],m,&h);

get_eg(&tspm1); add_eg(&eg_spm,&tspm0,&tspm1);

get_eg(&tnfm0);

_dp_nf_mod(gall,h,psm,m,0,&nfm);

_dp_nf_mod_destructive(gall,h,ps,m,!Top,&nf);

get_eg(&tnfm1); add_eg(&eg_nfm,&tnfm0,&tnfm1);

} else

nfm = (DP)1;

Line 1544 NODE dlist;

Line 1558 NODE dlist;

return 0;

g = updbase(g,nh);

gall = append_one(gall,nh);

if ( Print ) {

if ( DP_Print ) {

if ( !prev )

fprintf(asir_out,"\n");

print_split_eg(&tnf0,&tnf1); fflush(asir_out);

Line 1556 NODE dlist;

Line 1570 NODE dlist;

if ( m )

add_eg(&eg_znfm,&tnfm0,&tnfm1);

ZR++;

if ( Print ) {

if ( DP_Print ) {

fprintf(asir_out,"."); fflush(asir_out); prev = 0;

}

if ( Print )

if ( DP_Print )

fprintf(asir_out,"gb done\n");

return g;

}

Line 1593 int m;

Line 1607 int m;

get_eg(&tspm1); add_eg(&eg_spm,&tspm0,&tspm1); get_eg(&tnfm0);

dp_nf_mod(gall,h,ps,m,!Top,&nf);

} else {

_dp_sp_mod(ps[l->dp1],ps[l->dp2],m,&h);

_dp_sp_mod_dup(ps[l->dp1],ps[l->dp2],m,&h);

get_eg(&tspm1); add_eg(&eg_spm,&tspm0,&tspm1); get_eg(&tnfm0);

_dp_nf_mod(gall,h,ps,m,!Top,&nf);

_dp_nf_mod_destructive(gall,h,ps,m,!Top,&nf);

}

get_eg(&tnfm1); add_eg(&eg_nfm,&tnfm0,&tnfm1);

if ( nf ) {

Line 1608 int m;

Line 1622 int m;

return 0;

d = updpairs(d,g,nh);

g = updbase(g,nh);

if ( InterReduce )

interreduce_mod(g,nh,m);

gall = append_one(gall,nh);

if ( Print ) {

if ( DP_Print ) {

if ( !prev )

fprintf(asir_out,"\n");

print_split_eg(&tnfm0,&tnfm1); fflush(asir_out);

fprintf(asir_out,"(%d,%d),nb=%d,nab=%d,rp=%d,sugar=%d",l->dp1,l->dp2,length(g),length(gall),DPPlength(d),pss[nh]);

printdl(psh[nh]); fprintf(asir_out,"\n"); fflush(asir_out);

} else if ( DP_PrintShort ) {

fprintf(asir_out,"+"); fflush(asir_out);

}

prev = 1;

} else {

add_eg(&eg_znfm,&tnfm0,&tnfm1);

ZR++;

if ( Print ) {

if ( DP_Print || DP_PrintShort ) {

fprintf(asir_out,"."); fflush(asir_out); prev = 0;

}

if ( Print )

if ( DP_Print || DP_PrintShort )

fprintf(asir_out,"gb_mod done\n");

return g;

}

void interreduce_mod(g,n,m)

NODE g;

int n,m;

{

DP nf;

NODE gn,t;

int i;

MKNODE(gn,(pointer)n,0);

if ( PCoeffs )

for ( t = g; t; t = NEXT(t) ) {

i = (int)BDY(t);

if ( i != n ) {

dp_nf_mod(gn,ps[i],ps,m,1,&nf); ps[i] = nf;

}

else

for ( t = g; t; t = NEXT(t) ) {

i = (int)BDY(t);

if ( i != n ) {

_dp_nf_mod(gn,ps[i],ps,m,1,&nf); ps[i] = nf;

}

void _dp_nf_mod(b,g,ps,mod,full,rp)

NODE b;

DP g;

DP *ps;

int mod,full;

DP *rp;

{

DP u,p,d,s,t;

NODE l;

MP m,mr;

int sugar,psugar;

if ( !g ) {

*rp = 0; return;

}

sugar = g->sugar;

for ( d = 0; g; ) {

for ( u = 0, l = b; l; l = NEXT(l) ) {

if ( dp_redble(g,p = ps[(int)BDY(l)]) ) {

_dp_red_mod(g,p,mod,&u);

psugar = (BDY(g)->dl->td - BDY(p)->dl->td) + p->sugar;

sugar = MAX(sugar,psugar);

if ( !u ) {

if ( d )

d->sugar = sugar;

*rp = d; return;

}

break;

}

if ( u )

g = u;

else if ( !full ) {

if ( g ) {

MKDP(g->nv,BDY(g),t); t->sugar = sugar; g = t;

}

*rp = g; return;

} else {

m = BDY(g); NEWMP(mr); mr->dl = m->dl; mr->c = m->c;

NEXT(mr) = 0; MKDP(g->nv,mr,t); t->sugar = mr->dl->td;

_addmd(CO,mod,d,t,&s); d = s;

dp_rest(g,&t); g = t;

}

if ( d )

d->sugar = sugar;

*rp = d;

}

void _dp_nf(b,g,ps,full,rp)

NODE b;

DP g;

Line 1713 DP *ps;

Line 1653 DP *ps;

int full;

DP *rp;

{

DP u,p,d,s,t;

DP u,p,d,s,t,mult;

P dmy;

P coef;

NODE l;

MP m,mr;

int sugar,psugar;

Line 1727 DP *rp;

Line 1667 DP *rp;

for ( u = 0, l = b; l; l = NEXT(l) ) {

if ( dl_redble(BDY(g)->dl,psh[(int)BDY(l)]) ) {

dp_load((int)BDY(l),&p);

dp_red(d,g,p,&t,&u,&dmy);

/* t+u = coef*(d+g) - mult*p (t = coef*d) */

dp_red(d,g,p,&t,&u,&coef,&mult);

psugar = (BDY(g)->dl->td - BDY(p)->dl->td) + p->sugar;

sugar = MAX(sugar,psugar);

if ( GenTrace ) {

LIST hist;

Q cq;

NODE node,node0;

STOQ((int)BDY(l),cq);

node0 = mknode(4,coef,cq,mult,ONE);

MKLIST(hist,node0);

MKNODE(node,hist,TraceList); TraceList = node;

}

if ( !u ) {

if ( d )

d->sugar = sugar;

Line 1762 DP *rp;

Line 1713 DP *rp;

double pz_t_e, pz_t_d, pz_t_d1, pz_t_c, im_t_s, im_t_r;

extern int GenTrace;

extern NODE TraceList;

void _dp_nf_ptozp(b,g,ps,full,multiple,r)

NODE b;

DP g;

Line 1783 DP *r;

Line 1737 DP *r;

extern int kara_mag;

double get_rtime();

double t_0,t_00,tt,ttt,t_p,t_m,t_m1,t_m2,t_s,t_g,t_a;

LIST hist;

NODE node;

Q rcred,mrcred;

if ( !g ) {

*r = 0; return;

Line 1802 DP *r;

Line 1759 DP *r;

dc = 0; dp = 0; rc = ONE; rp = g;

MKSTR(imul,"dp_imul_index");

/* g = dc*dp+rc*rp */

for ( ; rp; ) {

for ( u = 0, l = b; l; l = NEXT(l) ) {

if ( dl_redble(BDY(rp)->dl,psh[(int)BDY(l)]) ) {

Line 1815 DP *r;

Line 1773 DP *r;

t_0 = get_rtime();

dp_subd(rp,red,&shift);

#if INET

if ( Dist && ndist && HMAG(red) > kara_bit ) {

NODE n0,n1,n2,n3;

int i,s,id;

Obj dmy;

Q ind;

if ( Print )

if ( DP_Print )

fprintf(asir_out,"d");

i = (int)BDY(l); STOQ(i,ind);

chsgnp((P)cred,(P *)&mcred);

Line 1833 DP *r;

Line 1790 DP *r;

muldc(CO,rp,(P)cr,&t);

NEXT(n0)=0;

Pox_pop_local(n0,&t1);

} else

} else {

#endif

{

if ( Print )

if ( DP_Print )

fprintf(asir_out,"l");

t_00 = get_rtime();

Line 1856 DP *r;

Line 1811 DP *r;

psugar = (BDY(rp)->dl->td - BDY(red)->dl->td) + red->sugar;

sugar = MAX(sugar,psugar);

if ( GenTrace ) {

/* u = cr*rp + (-cred)*shift*red */

STOQ((int)BDY(l),cq);

node = mknode(4,cr,cq,0,0);

mulq(cred,rc,&rcred);

chsgnnum((Num)rcred,(Num *)&mrcred);

muldc(CO,shift,(P)mrcred,(DP *)&ARG2(node));

MKLIST(hist,node);

}

if ( !u ) {

if ( dp )

dp->sugar = sugar;

*r = dp;

if ( GenTrace ) {

ARG3(BDY(hist)) = ONE;

MKNODE(node,hist,TraceList); TraceList = node;

}

goto final;

}

break;

Line 1868 DP *r;

Line 1836 DP *r;

if ( u ) {

if ( HMAG(u) > hmag ) {

t_0 = get_rtime();

#if INET

if ( Dist && HMAG(u) > kara_bit ) {

if ( Print )

if ( DP_Print )

fprintf(asir_out,"D");

dp_ptozp_d(dist,ndist,u,&t);

} else {

if ( Print )

if ( DP_Print )

fprintf(asir_out,"L");

dp_ptozp_d(0,0,u,&t);

}

#else

dp_ptozp(u,&t); /* XXX */

#endif

tt = get_rtime()-t_0; t_g += tt;

t_0 = get_rtime();

divsn(NM((Q)BDY(u)->c),NM((Q)BDY(t)->c),&cn); NTOQ(cn,1,cont);

if ( !dp_fcoeffs && Print ) {

if ( !dp_fcoeffs && DP_Print ) {

fprintf(asir_out,"(%d)",p_mag((P)cont)*100/p_mag((P)BDY(u)->c));

fflush(asir_out);

}

Line 1896 DP *r;

Line 1860 DP *r;

tt = get_rtime()-t_0; t_a += tt;

rp = t;

hmag = multiple*HMAG(rp)/denom;

if ( GenTrace ) {

NTOQ(gn,1,gcd);

ARG3(BDY(hist)) = (pointer)gcd;

MKNODE(node,hist,TraceList); TraceList = node;

}

} else {

t_0 = get_rtime();

mulq(cr,dc,&dcq); dc = dcq;

tt = get_rtime()-t_0; t_a += tt;

rp = u;

if ( GenTrace ) {

ARG3(BDY(hist)) = (pointer)ONE;

MKNODE(node,hist,TraceList); TraceList = node;

}

} else if ( !full ) {

if ( rp ) {

Line 1924 DP *r;

Line 1897 DP *r;

tt = get_rtime()-t_0; t_a += tt;

}

if ( GenTrace ) {

mulq(ARG3(BDY((LIST)BDY(TraceList))),dc,&cq);

ARG3(BDY((LIST)BDY(TraceList))) = (pointer)cq;

}

if ( dp )

dp->sugar = sugar;

*r = dp;

final:

if ( Print )

if ( DP_Print )

fprintf(asir_out,"(%.3g %.3g %.3g %.3g %.3g %.3g %.3g %.3g %.3g %.3g %.3g)",

t_p,t_m,t_m1,t_m2,t_s,

t_g,t_a,

Line 1999 DP *r;

Line 1976 DP *r;

t_00 = get_rtime();

if ( Dist && ndist

&& HMAG(rp) > mpi_mag && p_mag((P)cr) > mpi_mag ) {

if ( Print ) fprintf(asir_out,"~");

if ( DP_Print ) fprintf(asir_out,"~");

dp_imul_d(rp,cr,&t);

} else {

if ( Print ) fprintf(asir_out,"_");

if ( DP_Print ) fprintf(asir_out,"_");

muldc(CO,rp,(P)cr,&t);

}

ttt = get_rtime()-t_00; t_m1 += ttt/dp_nt(rp);

Line 2011 DP *r;

Line 1988 DP *r;

chsgnp((P)cred,(P *)&mcred);

if ( Dist && ndist

&& HMAG(red) > mpi_mag && p_mag((P)mcred) > mpi_mag ) {

if ( Print ) fprintf(asir_out,"=");

if ( DP_Print ) fprintf(asir_out,"=");

dp_imul_d(red,mcred,&t1);

} else {

if ( Print ) fprintf(asir_out,"_");

if ( DP_Print ) fprintf(asir_out,"_");

muldc(CO,red,(P)mcred,&t1);

}

ttt = get_rtime()-t_00; t_m2 += ttt/dp_nt(red);

Line 2040 DP *r;

Line 2017 DP *r;

if ( HMAG(u) > hmag ) {

t_0 = get_rtime();

if ( Dist && HMAG(u) > mpi_mag ) {

if ( Print )

if ( DP_Print )

fprintf(asir_out,"D");

dp_ptozp_d(dist,ndist,u,&t);

} else {

if ( Print )

if ( DP_Print )

fprintf(asir_out,"L");

dp_ptozp_d(0,0,u,&t);

}

tt = get_rtime()-t_0; t_g += tt;

t_0 = get_rtime();

divsn(NM((Q)BDY(u)->c),NM((Q)BDY(t)->c),&cn); NTOQ(cn,1,cont);

if ( Print ) {

if ( DP_Print ) {

fprintf(asir_out,"(%d)",p_mag((P)cont)*100/p_mag((P)BDY(u)->c));

fflush(asir_out);

}

Line 2095 DP *r;

Line 2072 DP *r;

dp->sugar = sugar;

*r = dp;

final:

if ( Print )

if ( DP_Print )

fprintf(asir_out,"(%.3g %.3g %.3g %.3g %.3g %.3g %.3g %.3g %.3g %.3g %.3g)",

t_p,t_m,t_m1,t_m2,t_s,

t_g,t_a,

Line 2446 NODE f;

Line 2423 NODE f;

g = updbase(g,i);

gall = append_one(gall,i);

}

if ( Print || PrintShort ) {

if ( DP_Print || DP_PrintShort ) {

fprintf(asir_out,"gbcheck total %d pairs\n",DPPlength(d)); fflush(asir_out);

}

while ( d ) {

Line 2455 NODE f;

Line 2432 NODE f;

dp_load(l->dp1,&dp1); dp_load(l->dp2,&dp2); dp_sp(dp1,dp2,&h);

_dp_nf(gall,h,ps,1,&nf);

get_eg(&tmp1); add_eg(&eg_gc,&tmp0,&tmp1);

if ( Print || PrintShort ) {

if ( DP_Print || DP_PrintShort ) {

fprintf(asir_out,"."); fflush(asir_out);

}

if ( nf )

return 0;

}

if ( Print || PrintShort )

if ( DP_Print || DP_PrintShort )

fprintf(asir_out,"\n");

return 1;

}

Line 2474 NODE f,x;

Line 2451 NODE f,x;

if ( NoMC )

return 1;

if ( Print || PrintShort ) {

if ( DP_Print || DP_PrintShort ) {

fprintf(asir_out,"membercheck\n"); fflush(asir_out);

}

for ( ; f; f = NEXT(f) ) {

get_eg(&tmp0);

_dp_nf(x,(DP)BDY(f),ps,1,&g);

get_eg(&tmp1); add_eg(&eg_mc,&tmp0,&tmp1);

if ( Print ) {

if ( DP_Print ) {

print_split_eg(&tmp0,&tmp1); fflush(asir_out);

} else if ( PrintShort ) {

} else if ( DP_PrintShort ) {

fprintf(asir_out,"."); fflush(asir_out);

}

if ( g )

return 0;

}

if ( Print || PrintShort )

if ( DP_Print || DP_PrintShort )

fprintf(asir_out,"\n");

return 1;

}

Line 2528 Obj name,value;

Line 2505 Obj name,value;

Top = v;

else if ( !strcmp(n,"ShowMag") )

ShowMag = v;

else if ( !strcmp(n,"PrintShort") )

else if ( !strcmp(n,"DP_PrintShort") )

PrintShort = v;

DP_PrintShort = v;

else if ( !strcmp(n,"Print") )

else if ( !strcmp(n,"DP_Print") )

Print = v;

DP_Print = v;

else if ( !strcmp(n,"Stat") )

Stat = v;

else if ( !strcmp(n,"Reverse") )

Reverse = v;

else if ( !strcmp(n,"InterReduce") )

InterReduce = v;

else if ( !strcmp(n,"Multiple") )

Multiple = v;

else if ( !strcmp(n,"Denominator") )

Denominator = v;

else if ( !strcmp(n,"PtozpRA") )

PtozpRA = v;

else if ( !strcmp(n,"GenTrace") )

GenTrace = v;

else if ( !strcmp(n,"OXCheck") )

OXCheck = v;

}

void dp_make_flaglist(list)

Line 2556 LIST *list;

Line 2535 LIST *list;

STOQ(Multiple,v); MKNODE(n,v,0); MKSTR(name,"Multiple"); MKNODE(n1,name,n); n = n1;

STOQ(Denominator,v); MKNODE(n1,v,n); n = n1; MKSTR(name,"Denominator"); MKNODE(n1,name,n); n = n1;

MKNODE(n1,Dist,n); n = n1; MKSTR(name,"Dist"); MKNODE(n1,name,n); n = n1;

STOQ(InterReduce,v); MKNODE(n1,v,n); n = n1; MKSTR(name,"InterReduce"); MKNODE(n1,name,n); n = n1;

STOQ(Reverse,v); MKNODE(n1,v,n); n = n1; MKSTR(name,"Reverse"); MKNODE(n1,name,n); n = n1;

STOQ(Stat,v); MKNODE(n1,v,n); n = n1; MKSTR(name,"Stat"); MKNODE(n1,name,n); n = n1;

STOQ(Print,v); MKNODE(n1,v,n); n = n1; MKSTR(name,"Print"); MKNODE(n1,name,n); n = n1;

STOQ(DP_Print,v); MKNODE(n1,v,n); n = n1; MKSTR(name,"DP_Print"); MKNODE(n1,name,n); n = n1;

STOQ(OXCheck,v); MKNODE(n1,v,n); n = n1; MKSTR(name,"OXCheck"); MKNODE(n1,name,n); n = n1;

STOQ(GenTrace,v); MKNODE(n1,v,n); n = n1; MKSTR(name,"GenTrace"); MKNODE(n1,name,n); n = n1;

STOQ(PtozpRA,v); MKNODE(n1,v,n); n = n1; MKSTR(name,"PtozpRA"); MKNODE(n1,name,n); n = n1;

STOQ(ShowMag,v); MKNODE(n1,v,n); n = n1; MKSTR(name,"ShowMag"); MKNODE(n1,name,n); n = n1;

STOQ(Top,v); MKNODE(n1,v,n); n = n1; MKSTR(name,"Top"); MKNODE(n1,name,n); n = n1;

Line 2579 LIST *list;

Line 2559 LIST *list;

#define DELIM '/'

#if defined(THINK_C)

void dp_save(index,p,prefix)

#undef DELIM

#define DELIM ':'

#endif

void dp_save(index,p)

int index;

DP p;

Obj p;

char *prefix;

{

FILE *fp;

char path[BUFSIZ];

sprintf(path,"%s%c%d",Demand,DELIM,index);

if ( prefix )

#if defined(VISUAL) || defined(THINK_C)

sprintf(path,"%s%c%s%d",Demand,DELIM,prefix,index);

else

sprintf(path,"%s%c%d",Demand,DELIM,index);

if ( !(fp = fopen(path,"wb") ) )

#else

if ( !(fp = fopen(path,"w") ) )

#endif

error("dp_save : cannot open a file");

savevl(fp,VC); saveobj(fp,(Obj)p); fclose(fp);

savevl(fp,VC); saveobj(fp,p); fclose(fp);

}

void dp_load(index,p)

Line 2612 DP *p;

Line 2587 DP *p;

*p = ps[index];

else {

sprintf(path,"%s%c%d",Demand,DELIM,index);

#if defined(VISUAL) || defined(THINK_C)

if ( !(fp = fopen(path,"rb") ) )

#else

if ( !(fp = fopen(path,"r") ) )

#endif

error("dp_load : cannot open a file");

skipvl(fp); loadobj(fp,(Obj *)p); fclose(fp);

}

Line 2630 DP *p;

Line 2601 DP *p;

char path[BUFSIZ];

sprintf(path,"%s%c%d",Demand,DELIM,index);

#if defined(VISUAL) || defined(THINK_C)

if ( !(fp = fopen(path,"rb") ) )

#else

if ( !(fp = fopen(path,"r") ) )

#endif

return 0;

else {

skipvl(fp); loadobj(fp,(Obj *)p); fclose(fp); return 1;

Line 2650 void init_stat() {

Line 2617 void init_stat() {

}

void print_stat() {

if ( !Print && !Stat )

if ( !DP_Print && !Stat )

return;

print_eg("UP",&eg_up); print_eg("SP",&eg_sp); print_eg("SPM",&eg_spm);

print_eg("NF",&eg_nf); print_eg("NFM",&eg_nfm); print_eg("ZNFM",&eg_znfm);

Line 2658 void print_stat() {

Line 2625 void print_stat() {

print_eg("RA",&eg_ra); print_eg("MC",&eg_mc); print_eg("GC",&eg_gc);

fprintf(asir_out,"T=%d,B=%d M=%d F=%d D=%d ZR=%d NZR=%d\n",TP,NBP,NMP,NFP,NDP,ZR,NZR);

}

* Old codes

#if 0

void _dp_nf_ptozp(b,g,ps,full,multiple,rp)

NODE b;

DP g;

DP *ps;

int full,multiple;

DP *rp;

{

DP u,p,d,s,t,dmy;

NODE l;

MP m,mr;

int i,n;

int hmag,denom;

int sugar,psugar;

NODE dist;

int ndist;

int kara_bit;

extern int kara_mag;

if ( !g ) {

*rp = 0; return;

}

denom = Denominator?Denominator:1;

hmag = multiple*HMAG(g)/denom;

kara_bit = kara_mag*27; /* XXX */

if ( Dist ) {

dist = BDY(Dist);

ndist = length(dist);

}

sugar = g->sugar;

for ( d = 0; g; ) {

for ( u = 0, l = b; l; l = NEXT(l) ) {

if ( dl_redble(BDY(g)->dl,psh[(int)BDY(l)]) ) {

dp_load((int)BDY(l),&p);

dp_red(d,g,p,&t,&u,&dmy);

psugar = (BDY(g)->dl->td - BDY(p)->dl->td) + p->sugar;

sugar = MAX(sugar,psugar);

if ( !u ) {

if ( d )

d->sugar = sugar;

*rp = d; return;

}

d = t;

break;

}

if ( u ) {

g = u;

if ( d ) {

if ( HMAG(d) > hmag ) {

if ( Dist && HMAG(g) > kara_bit )

dp_ptozp2_d(dist,ndist,d,g,&t,&u);

else

dp_ptozp2(d,g,&t,&u);

d = t; g = u;

hmag = multiple*HMAG(d)/denom;

}

} else {

if ( HMAG(g) > hmag ) {

#if INET

if ( Dist && HMAG(g) > kara_bit ) {

dp_ptozp_d(dist,ndist,g,&t);

} else

#endif

dp_ptozp(g,&t);

g = t;

hmag = multiple*HMAG(g)/denom;

}

else if ( !full ) {

if ( g ) {

MKDP(g->nv,BDY(g),t); t->sugar = sugar; g = t;

}

*rp = g; return;

} else {

m = BDY(g); NEWMP(mr); mr->dl = m->dl; mr->c = m->c;

NEXT(mr) = 0; MKDP(g->nv,mr,t); t->sugar = mr->dl->td;

addd(CO,d,t,&s); d = s;

dp_rest(g,&t); g = t;

}

if ( d )

d->sugar = sugar;

*rp = d;

}

int criterion_2(dp1,dp2)

{

DP g1,g2,g,s1,s2;

monomial_gcd(ps[dp1],&g1); monomial_gcd(ps[dp2],&g2);

dp_gcd(g1,g2,&g);

dp_subd(ps[dp1],g,&s1); dp_subd(ps[dp2],g,&s2);

return _criterion_2(s1,s2);

}

int _criterion_2( dp1, dp2 )

DP dp1, dp2;

{

d1 = BDY(dp1)->dl->d; d2 = BDY(dp2)->dl->d;

for ( i = CNVars; --i >= 0; d1++, d2++ )

if ( (*d1 <= *d2 ? *d1 : *d2) > 0 ) return 0;

return 1;

}

void dp_gcd(p1,p2,rp)

DP p1,p2;

DP *rp;

{

int i,n,td;

DL d1,d2,d;

MP m;

DP s;

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] = MIN(d1->d[i],d2->d[i]);

td += d->d[i];

}

d->td = td;

NEWMP(m); m->dl = d; m->c = (P)ONE; NEXT(m) = 0; MKDP(n,m,s); s->sugar = d->td;

*rp = s;

}

void monomial_gcd(p,rp)

DP p;

DP *rp;

{

int n,i,td;

DL d,d1;

MP m;

DP s;

n = p->nv; m = BDY(p); d = m->dl;

NEWDL(d1,n);

for ( i = 0; i < n; i++ )

d1->d[i] = d->d[i];

for ( m = NEXT(m); m; m = NEXT(m) ) {

d = m->dl;

for ( i = 0; i < n; i++ )

d1->d[i] = MIN(d1->d[i],d->d[i]);

}

for ( i = 0, td = 0; i < n; i++ )

td += d1->d[i];

NEWMP(m); m->dl = d1; m->c = (P)ONE; NEXT(m) = 0; MKDP(n,m,s); s->sugar = d->td;

*rp = s;

}

#endif

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