=================================================================== RCS file: /home/cvs/OpenXM_contrib2/asir2000/engine/dist.c,v retrieving revision 1.12 retrieving revision 1.34 diff -u -p -r1.12 -r1.34 --- OpenXM_contrib2/asir2000/engine/dist.c 2000/12/11 02:00:41 1.12 +++ OpenXM_contrib2/asir2000/engine/dist.c 2005/11/24 08:16:03 1.34 @@ -45,7 +45,7 @@ * DEVELOPER SHALL HAVE NO LIABILITY IN CONNECTION WITH THE USE, * PERFORMANCE OR NON-PERFORMANCE OF THE SOFTWARE. * - * $OpenXM: OpenXM_contrib2/asir2000/engine/dist.c,v 1.11 2000/12/05 06:59:16 noro Exp $ + * $OpenXM: OpenXM_contrib2/asir2000/engine/dist.c,v 1.33 2005/11/16 23:42:53 noro Exp $ */ #include "ca.h" @@ -60,63 +60,71 @@ #define ORD_BLEXREV 8 #define ORD_ELIM 9 #define ORD_WEYL_ELIM 10 +#define ORD_HOMO_WW_DRL 11 +#define ORD_DRL_ZIGZAG 12 +#define ORD_HOMO_WW_DRL_ZIGZAG 13 +int cmpdl_drl_zigzag(), cmpdl_homo_ww_drl_zigzag(); + int (*cmpdl)()=cmpdl_revgradlex; int (*primitive_cmpdl[3])() = {cmpdl_revgradlex,cmpdl_gradlex,cmpdl_lex}; -void comm_muld(VL,DP,DP,DP *); -void weyl_muld(VL,DP,DP,DP *); -void weyl_muldm(VL,MP,DP,DP *); -void weyl_mulmm(VL,MP,MP,int,struct cdl *,int); -void comm_muld_tab(VL,int,struct cdl *,int,struct cdl *,int,struct cdl *); - -void mkwc(int,int,Q *); - -int cmpdl_weyl_elim(); - int do_weyl; int dp_nelim,dp_fcoeffs; -struct order_spec dp_current_spec; +struct order_spec *dp_current_spec; +struct modorder_spec *dp_current_modspec; int *dp_dl_work; -int has_fcoef(DP); -int has_fcoef_p(P); +void comm_muld_trunc(VL vl,DP p1,DP p2,DL dl,DP *pr); +void comm_quod(VL vl,DP p1,DP p2,DP *pr); +void muldm_trunc(VL vl,DP p,MP m0,DL dl,DP *pr); +void muldc_trunc(VL vl,DP p,P c,DL dl,DP *pr); -int has_fcoef(f) -DP f; +void order_init() { + struct order_spec *spec; + + create_order_spec(0,0,&spec); + initd(spec); + create_modorder_spec(0,0,&dp_current_modspec); +} + +int has_sfcoef(DP f) +{ MP t; if ( !f ) return 0; for ( t = BDY(f); t; t = NEXT(t) ) - if ( has_fcoef_p(t->c) ) + if ( has_sfcoef_p(t->c) ) break; return t ? 1 : 0; } -int has_fcoef_p(f) -P f; +int has_sfcoef_p(P f) { DCP dc; if ( !f ) return 0; else if ( NUM(f) ) - return (NID((Num)f) == N_LM || NID((Num)f) == N_GF2N) ? 1 : 0; + return (NID((Num)f) == N_GFS) ? 1 : 0; else { for ( dc = DC(f); dc; dc = NEXT(dc) ) - if ( has_fcoef_p(COEF(dc)) ) + if ( has_sfcoef_p(COEF(dc)) ) return 1; return 0; } } -void initd(spec) -struct order_spec *spec; +void initd(struct order_spec *spec) { switch ( spec->id ) { + case 3: + cmpdl = cmpdl_composite; + dp_dl_work = (int *)MALLOC_ATOMIC(spec->nv*sizeof(int)); + break; case 2: cmpdl = cmpdl_matrix; dp_dl_work = (int *)MALLOC_ATOMIC(spec->nv*sizeof(int)); @@ -146,26 +154,30 @@ struct order_spec *spec; cmpdl = cmpdl_elim; break; case ORD_WEYL_ELIM: cmpdl = cmpdl_weyl_elim; break; + case ORD_HOMO_WW_DRL: + cmpdl = cmpdl_homo_ww_drl; break; + case ORD_DRL_ZIGZAG: + cmpdl = cmpdl_drl_zigzag; break; + case ORD_HOMO_WW_DRL_ZIGZAG: + cmpdl = cmpdl_homo_ww_drl_zigzag; break; case ORD_LEX: default: cmpdl = cmpdl_lex; break; } break; } - dp_current_spec = *spec; + dp_current_spec = spec; } -void ptod(vl,dvl,p,pr) -VL vl,dvl; -P p; -DP *pr; +void ptod(VL vl,VL dvl,P p,DP *pr) { int isconst = 0; - int n,i; + int n,i,j,k; VL tvl; V v; DL d; MP m; DCP dc; + DCP *w; DP r,s,t,u; P x,c; @@ -180,15 +192,26 @@ DP *pr; for ( i = 0, tvl = dvl, v = VR(p); tvl && tvl->v != v; tvl = NEXT(tvl), i++ ); if ( !tvl ) { - for ( dc = DC(p), s = 0, MKV(v,x); dc; dc = NEXT(dc) ) { - ptod(vl,dvl,COEF(dc),&t); pwrp(vl,x,DEG(dc),&c); + for ( dc = DC(p), k = 0; dc; dc = NEXT(dc), k++ ); + w = (DCP *)ALLOCA(k*sizeof(DCP)); + for ( dc = DC(p), j = 0; j < k; dc = NEXT(dc), j++ ) + w[j] = dc; + + for ( j = k-1, s = 0, MKV(v,x); j >= 0; j-- ) { + ptod(vl,dvl,COEF(w[j]),&t); pwrp(vl,x,DEG(w[j]),&c); muldc(vl,t,c,&r); addd(vl,r,s,&t); s = t; } *pr = s; } else { - for ( dc = DC(p), s = 0; dc; dc = NEXT(dc) ) { - ptod(vl,dvl,COEF(dc),&t); - NEWDL(d,n); d->td = QTOS(DEG(dc)); d->d[i] = d->td; + for ( dc = DC(p), k = 0; dc; dc = NEXT(dc), k++ ); + w = (DCP *)ALLOCA(k*sizeof(DCP)); + for ( dc = DC(p), j = 0; j < k; dc = NEXT(dc), j++ ) + w[j] = dc; + + for ( j = k-1, s = 0; j >= 0; j-- ) { + ptod(vl,dvl,COEF(w[j]),&t); + NEWDL(d,n); d->d[i] = QTOS(DEG(w[j])); + d->td = MUL_WEIGHT(d->d[i],i); NEWMP(m); m->dl = d; C(m) = (P)ONE; NEXT(m) = 0; MKDP(n,m,u); u->sugar = d->td; comm_muld(vl,t,u,&r); addd(vl,r,s,&t); s = t; } @@ -196,18 +219,18 @@ DP *pr; } } } - if ( !dp_fcoeffs && has_fcoef(*pr) ) - dp_fcoeffs = 1; +#if 0 + if ( !dp_fcoeffs && has_sfcoef(*pr) ) + dp_fcoeffs = N_GFS; +#endif } -void dtop(vl,dvl,p,pr) -VL vl,dvl; -DP p; -P *pr; +void dtop(VL vl,VL dvl,DP p,P *pr) { - int n,i; + int n,i,j,k; DL d; MP m; + MP *a; P r,s,t,u,w; Q q; VL tvl; @@ -215,7 +238,13 @@ P *pr; if ( !p ) *pr = 0; else { - for ( n = p->nv, m = BDY(p), s = 0; m; m = NEXT(m) ) { + for ( k = 0, m = BDY(p); m; m = NEXT(m), k++ ); + a = (MP *)ALLOCA(k*sizeof(MP)); + for ( j = 0, m = BDY(p); j < k; m = NEXT(m), j++ ) + a[j] = m; + + for ( n = p->nv, j = k-1, s = 0; j >= 0; j-- ) { + m = a[j]; t = C(m); if ( NUM(t) && NID((Num)t) == N_M ) { mptop(t,&u); t = u; @@ -231,9 +260,7 @@ P *pr; } } -void nodetod(node,dp) -NODE node; -DP *dp; +void nodetod(NODE node,DP *dp) { NODE t; int len,i,td; @@ -251,7 +278,7 @@ DP *dp; else if ( !NUM(e) || !RATN(e) || !INT(e) ) error("nodetod : invalid input"); else { - d->d[i] = QTOS((Q)e); td += d->d[i]; + d->d[i] = QTOS((Q)e); td += MUL_WEIGHT(d->d[i],i); } } d->td = td; @@ -259,8 +286,7 @@ DP *dp; MKDP(len,m,u); u->sugar = td; *dp = u; } -int sugard(m) -MP m; +int sugard(MP m) { int s; @@ -269,19 +295,28 @@ MP m; return s; } -void addd(vl,p1,p2,pr) -VL vl; -DP p1,p2,*pr; +void addd(VL vl,DP p1,DP p2,DP *pr) { int n; MP m1,m2,mr,mr0; P t; + DL d; if ( !p1 ) *pr = p2; else if ( !p2 ) *pr = p1; else { + if ( OID(p1) <= O_R ) { + n = NV(p2); NEWDL(d,n); + NEWMP(m1); m1->dl = d; C(m1) = (P)p1; NEXT(m1) = 0; + MKDP(n,m1,p1); (p1)->sugar = 0; + } + if ( OID(p2) <= O_R ) { + n = NV(p1); NEWDL(d,n); + NEWMP(m2); m2->dl = d; C(m2) = (P)p2; NEXT(m2) = 0; + MKDP(n,m2,p2); (p2)->sugar = 0; + } for ( n = NV(p1), m1 = BDY(p1), m2 = BDY(p2), mr0 = 0; m1 && m2; ) switch ( (*cmpdl)(n,m1->dl,m2->dl) ) { case 0: @@ -320,12 +355,10 @@ DP p1,p2,*pr; /* for F4 symbolic reduction */ -void symb_addd(p1,p2,pr) -DP p1,p2,*pr; +void symb_addd(DP p1,DP p2,DP *pr) { int n; MP m1,m2,mr,mr0; - P t; if ( !p1 ) *pr = p2; @@ -374,11 +407,11 @@ DP p1,p2,*pr; * return : a merged list */ -NODE symb_merge(m1,m2,n) -NODE m1,m2; -int n; +NODE symb_merge(NODE m1,NODE m2,int n) { NODE top,prev,cur,m,t; + int c,i; + DL d1,d2; if ( !m1 ) return m2; @@ -399,7 +432,27 @@ int n; prev = top; cur = NEXT(top); /* BDY(prev) > BDY(m) always holds */ while ( cur && m ) { + d1 = (DL)BDY(cur); + d2 = (DL)BDY(m); +#if 1 switch ( (*cmpdl)(n,(DL)BDY(cur),(DL)BDY(m)) ) { +#else + /* XXX only valid for DRL */ + if ( d1->td > d2->td ) + c = 1; + else if ( d1->td < d2->td ) + c = -1; + else { + for ( i = n-1; i >= 0 && d1->d[i] == d2->d[i]; i-- ); + if ( i < 0 ) + c = 0; + else if ( d1->d[i] < d2->d[i] ) + c = 1; + else + c = -1; + } + switch ( c ) { +#endif case 0: m = NEXT(m); prev = cur; cur = NEXT(cur); @@ -420,10 +473,117 @@ int n; } } -void subd(vl,p1,p2,pr) -VL vl; -DP p1,p2,*pr; +void _adddl(int n,DL d1,DL d2,DL d3) { + int i; + + d3->td = d1->td+d2->td; + for ( i = 0; i < n; i++ ) + d3->d[i] = d1->d[i]+d2->d[i]; +} + +/* m1 <- m1 U dl*f, destructive */ + +NODE mul_dllist(DL dl,DP f); + +NODE symb_mul_merge(NODE m1,DL dl,DP f,int n) +{ + NODE top,prev,cur,n1; + DP g; + DL t,s; + MP m; + + if ( !m1 ) + return mul_dllist(dl,f); + else if ( !f ) + return m1; + else { + m = BDY(f); + NEWDL_NOINIT(t,n); + _adddl(n,m->dl,dl,t); + top = m1; prev = 0; cur = m1; + while ( m ) { + switch ( (*cmpdl)(n,(DL)BDY(cur),t) ) { + case 0: + prev = cur; cur = NEXT(cur); + if ( !cur ) { + MKDP(n,m,g); + NEXT(prev) = mul_dllist(dl,g); + return; + } + m = NEXT(m); + if ( m ) _adddl(n,m->dl,dl,t); + break; + case 1: + prev = cur; cur = NEXT(cur); + if ( !cur ) { + MKDP(n,m,g); + NEXT(prev) = mul_dllist(dl,g); + return; + } + break; + case -1: + NEWDL_NOINIT(s,n); + s->td = t->td; + bcopy(t->d,s->d,n*sizeof(int)); + NEWNODE(n1); + n1->body = (pointer)s; + NEXT(n1) = cur; + if ( !prev ) { + top = n1; cur = n1; + } else { + NEXT(prev) = n1; prev = n1; + } + m = NEXT(m); + if ( m ) _adddl(n,m->dl,dl,t); + break; + } + } + return top; + } +} + +DLBUCKET symb_merge_bucket(DLBUCKET m1,DLBUCKET m2,int n) +{ + DLBUCKET top,prev,cur,m,t; + + if ( !m1 ) + return m2; + else if ( !m2 ) + return m1; + else { + if ( m1->td == m2->td ) { + top = m1; + BDY(top) = symb_merge(BDY(top),BDY(m2),n); + m = NEXT(m2); + } else if ( m1->td > m2->td ) { + top = m1; m = m2; + } else { + top = m2; m = m1; + } + prev = top; cur = NEXT(top); + /* prev->td > m->td always holds */ + while ( cur && m ) { + if ( cur->td == m->td ) { + BDY(cur) = symb_merge(BDY(cur),BDY(m),n); + m = NEXT(m); + prev = cur; cur = NEXT(cur); + } else if ( cur->td > m->td ) { + t = NEXT(cur); NEXT(cur) = m; m = t; + prev = cur; cur = NEXT(cur); + } else { + NEXT(prev) = m; m = cur; + prev = NEXT(prev); cur = NEXT(prev); + } + } + if ( !cur ) + NEXT(prev) = m; + return top; + } +} + +void subd(VL vl,DP p1,DP p2,DP *pr) +{ DP t; if ( !p2 ) @@ -433,14 +593,16 @@ DP p1,p2,*pr; } } -void chsgnd(p,pr) -DP p,*pr; +void chsgnd(DP p,DP *pr) { MP m,mr,mr0; + Obj r; if ( !p ) *pr = 0; - else { + else if ( OID(p) <= O_R ) { + chsgnr((Obj)p,&r); *pr = (DP)r; + } else { for ( mr0 = 0, m = BDY(p); m; m = NEXT(m) ) { NEXTMP(mr0,mr); chsgnp(C(m),&C(mr)); mr->dl = m->dl; } @@ -450,9 +612,7 @@ DP p,*pr; } } -void muld(vl,p1,p2,pr) -VL vl; -DP p1,p2,*pr; +void muld(VL vl,DP p1,DP p2,DP *pr) { if ( ! do_weyl ) comm_muld(vl,p1,p2,pr); @@ -460,9 +620,7 @@ DP p1,p2,*pr; weyl_muld(vl,p1,p2,pr); } -void comm_muld(vl,p1,p2,pr) -VL vl; -DP p1,p2,*pr; +void comm_muld(VL vl,DP p1,DP p2,DP *pr) { MP m; DP s,t,u; @@ -498,12 +656,87 @@ DP p1,p2,*pr; } } -void muldm(vl,p,m0,pr) -VL vl; -DP p; -MP m0; -DP *pr; +/* discard terms which is not a multiple of dl */ + +void comm_muld_trunc(VL vl,DP p1,DP p2,DL dl,DP *pr) { + MP m; + DP s,t,u; + int i,l,l1; + static MP *w; + static int wlen; + + if ( !p1 || !p2 ) + *pr = 0; + else if ( OID(p1) <= O_P ) + muldc_trunc(vl,p2,(P)p1,dl,pr); + else if ( OID(p2) <= O_P ) + muldc_trunc(vl,p1,(P)p2,dl,pr); + else { + for ( m = BDY(p1), l1 = 0; m; m = NEXT(m), l1++ ); + for ( m = BDY(p2), l = 0; m; m = NEXT(m), l++ ); + if ( l1 < l ) { + t = p1; p1 = p2; p2 = t; + l = l1; + } + if ( l > wlen ) { + if ( w ) GC_free(w); + w = (MP *)MALLOC(l*sizeof(MP)); + wlen = l; + } + for ( m = BDY(p2), i = 0; i < l; m = NEXT(m), i++ ) + w[i] = m; + for ( s = 0, i = l-1; i >= 0; i-- ) { + muldm_trunc(vl,p1,w[i],dl,&t); addd(vl,s,t,&u); s = u; + } + bzero(w,l*sizeof(MP)); + *pr = s; + } +} + +void comm_quod(VL vl,DP p1,DP p2,DP *pr) +{ + MP m,m0; + DP s,t; + int i,n,sugar; + DL d1,d2,d; + Q a,b; + + if ( !p2 ) + error("comm_quod : invalid input"); + if ( !p1 ) + *pr = 0; + else { + n = NV(p1); + d2 = BDY(p2)->dl; + m0 = 0; + sugar = p1->sugar; + while ( p1 ) { + d1 = BDY(p1)->dl; + NEWDL(d,n); + d->td = d1->td - d2->td; + for ( i = 0; i < n; i++ ) + d->d[i] = d1->d[i]-d2->d[i]; + NEXTMP(m0,m); + m->dl = d; + divq((Q)BDY(p1)->c,(Q)BDY(p2)->c,&a); chsgnq(a,&b); + C(m) = (P)b; + muldm_trunc(vl,p2,m,d2,&t); + addd(vl,p1,t,&s); p1 = s; + C(m) = (P)a; + } + if ( m0 ) { + NEXT(m) = 0; MKDP(n,m0,*pr); + } else + *pr = 0; + /* XXX */ + if ( *pr ) + (*pr)->sugar = sugar - d2->td; + } +} + +void muldm(VL vl,DP p,MP m0,DP *pr) +{ MP m,mr,mr0; P c; DL d; @@ -527,10 +760,45 @@ DP *pr; } } -void weyl_muld(vl,p1,p2,pr) -VL vl; -DP p1,p2,*pr; +void muldm_trunc(VL vl,DP p,MP m0,DL dl,DP *pr) { + MP m,mr,mr0; + P c; + DL d,tdl; + int n,i; + + if ( !p ) + *pr = 0; + else { + n = NV(p); + NEWDL(tdl,n); + for ( mr0 = 0, m = BDY(p), c = C(m0), d = m0->dl; + m; m = NEXT(m) ) { + _adddl(n,m->dl,d,tdl); + for ( i = 0; i < n; i++ ) + if ( tdl->d[i] < dl->d[i] ) + break; + if ( i < n ) + continue; + NEXTMP(mr0,mr); + mr->dl = tdl; + NEWDL(tdl,n); + if ( NUM(C(m)) && RATN(C(m)) && NUM(c) && RATN(c) ) + mulq((Q)C(m),(Q)c,(Q *)&C(mr)); + else + mulp(vl,C(m),c,&C(mr)); + } + if ( mr0 ) { + NEXT(mr) = 0; MKDP(NV(p),mr0,*pr); + } else + *pr = 0; + if ( *pr ) + (*pr)->sugar = p->sugar + m0->dl->td; + } +} + +void weyl_muld(VL vl,DP p1,DP p2,DP *pr) +{ MP m; DP s,t,u; int i,l; @@ -562,11 +830,7 @@ DP p1,p2,*pr; /* monomial * polynomial */ -void weyl_muldm(vl,m0,p,pr) -VL vl; -MP m0; -DP p; -DP *pr; +void weyl_muldm(VL vl,MP m0,DP p,DP *pr) { DP r,t,t1; MP m; @@ -624,16 +888,9 @@ DP *pr; /* m0 = x0^d0*x1^d1*... * dx0^e0*dx1^e1*... */ /* rtab : array of length (e0+1)*(e1+1)*... */ -void weyl_mulmm(vl,m0,m1,n,rtab,rtablen) -VL vl; -MP m0,m1; -int n; -struct cdl *rtab; -int rtablen; +void weyl_mulmm(VL vl,MP m0,MP m1,int n,struct cdl *rtab,int rtablen) { - MP m,mr,mr0; - DP r,t,t1; - P c,c0,c1,cc; + P c,c0,c1; DL d,d0,d1,dt; int i,j,a,b,k,l,n2,s,min,curlen; struct cdl *p; @@ -671,10 +928,13 @@ int rtablen; for ( i = 0; i < n2; i++ ) { a = d0->d[i]; b = d1->d[n2+i]; k = d0->d[n2+i]; l = d1->d[i]; + + /* degree of xi^a*(Di^k*xi^l)*Di^b */ + a += l; + b += k; + s = MUL_WEIGHT(a,i)+MUL_WEIGHT(b,n2+i); + if ( !k || !l ) { - a += l; - b += k; - s = a+b; for ( j = 0, p = rtab; j < curlen; j++, p++ ) { if ( p->c ) { dt = p->d; @@ -693,8 +953,6 @@ int rtablen; tab = (struct cdl *)MALLOC(tablen*sizeof(struct cdl)); ctab = (Q *)MALLOC(tablen*sizeof(Q)); } - /* degree of xi^a*(Di^k*xi^l)*Di^b */ - s = a+k+l+b; /* compute xi^a*(Di^k*xi^l)*Di^b */ min = MIN(k,l); mkwc(k,l,ctab); @@ -702,17 +960,17 @@ int rtablen; if ( n & 1 ) for ( j = 0; j <= min; j++ ) { NEWDL(d,n); - d->d[i] = l-j+a; d->d[n2+i] = k-j+b; + d->d[i] = a-j; d->d[n2+i] = b-j; d->td = s; - d->d[n-1] = s-(d->d[i]+d->d[n2+i]); + d->d[n-1] = s-(MUL_WEIGHT(a-j,i)+MUL_WEIGHT(b-j,n2+i)); tab[j].d = d; tab[j].c = (P)ctab[j]; } else for ( j = 0; j <= min; j++ ) { NEWDL(d,n); - d->d[i] = l-j+a; d->d[n2+i] = k-j+b; - d->td = d->d[i]+d->d[n2+i]; /* XXX */ + d->d[i] = a-j; d->d[n2+i] = b-j; + d->td = MUL_WEIGHT(a-j,i)+MUL_WEIGHT(b-j,n2+i); /* XXX */ tab[j].d = d; tab[j].c = (P)ctab[j]; } @@ -732,14 +990,7 @@ int rtablen; ] */ -void comm_muld_tab(vl,nv,t,n,t1,n1,rt) -VL vl; -int nv; -struct cdl *t; -int n; -struct cdl *t1; -int n1; -struct cdl *rt; +void comm_muld_tab(VL vl,int nv,struct cdl *t,int n,struct cdl *t1,int n1,struct cdl *rt) { int i,j; struct cdl *p; @@ -761,11 +1012,7 @@ struct cdl *rt; } } -void muldc(vl,p,c,pr) -VL vl; -DP p; -P c; -DP *pr; +void muldc(VL vl,DP p,P c,DP *pr) { MP m,mr,mr0; @@ -790,14 +1037,39 @@ DP *pr; } } -void divsdc(vl,p,c,pr) -VL vl; -DP p; -P c; -DP *pr; +void muldc_trunc(VL vl,DP p,P c,DL dl,DP *pr) { MP m,mr,mr0; + DL mdl; + int i,n; + if ( !p || !c ) { + *pr = 0; return; + } + n = NV(p); + for ( mr0 = 0, m = BDY(p); m; m = NEXT(m) ) { + mdl = m->dl; + for ( i = 0; i < n; i++ ) + if ( mdl->d[i] < dl->d[i] ) + break; + if ( i < n ) + break; + NEXTMP(mr0,mr); + if ( NUM(C(m)) && RATN(C(m)) && NUM(c) && RATN(c) ) + mulq((Q)C(m),(Q)c,(Q *)&C(mr)); + else + mulp(vl,C(m),c,&C(mr)); + mr->dl = m->dl; + } + NEXT(mr) = 0; MKDP(NV(p),mr0,*pr); + if ( *pr ) + (*pr)->sugar = p->sugar; +} + +void divsdc(VL vl,DP p,P c,DP *pr) +{ + MP m,mr,mr0; + if ( !c ) error("disvsdc : division by 0"); else if ( !p ) @@ -812,10 +1084,7 @@ DP *pr; } } -void adddl(n,d1,d2,dr) -int n; -DL d1,d2; -DL *dr; +void adddl(int n,DL d1,DL d2,DL *dr) { DL dt; int i; @@ -834,11 +1103,8 @@ DL *dr; /* d1 += d2 */ -void adddl_destructive(n,d1,d2) -int n; -DL d1,d2; +void adddl_destructive(int n,DL d1,DL d2) { - DL dt; int i; d1->td += d2->td; @@ -846,9 +1112,7 @@ DL d1,d2; d1->d[i] += d2->d[i]; } -int compd(vl,p1,p2) -VL vl; -DP p1,p2; +int compd(VL vl,DP p1,DP p2) { int n,t; MP m1,m2; @@ -872,9 +1136,7 @@ DP p1,p2; } } -int cmpdl_lex(n,d1,d2) -int n; -DL d1,d2; +int cmpdl_lex(int n,DL d1,DL d2) { int i; @@ -882,9 +1144,7 @@ DL d1,d2; return i == n ? 0 : (d1->d[i] > d2->d[i] ? 1 : -1); } -int cmpdl_revlex(n,d1,d2) -int n; -DL d1,d2; +int cmpdl_revlex(int n,DL d1,DL d2) { int i; @@ -892,9 +1152,7 @@ DL d1,d2; return i < 0 ? 0 : (d1->d[i] < d2->d[i] ? 1 : -1); } -int cmpdl_gradlex(n,d1,d2) -int n; -DL d1,d2; +int cmpdl_gradlex(int n,DL d1,DL d2) { if ( d1->td > d2->td ) return 1; @@ -904,11 +1162,9 @@ DL d1,d2; return cmpdl_lex(n,d1,d2); } -int cmpdl_revgradlex(n,d1,d2) -int n; -DL d1,d2; +int cmpdl_revgradlex(int n,DL d1,DL d2) { - register int i; + register int i,c; register int *p1,*p2; if ( d1->td > d2->td ) @@ -916,15 +1172,73 @@ DL d1,d2; else if ( d1->td < d2->td ) return -1; else { - for ( i= n - 1, p1 = d1->d+n-1, p2 = d2->d+n-1; - i >= 0 && *p1 == *p2; i--, p1--, p2-- ); - return i < 0 ? 0 : (*p1 < *p2 ? 1 : -1); + i = n-1; + p1 = d1->d+n-1; + p2 = d2->d+n-1; + while ( i >= 7 ) { + c = (*p1--) - (*p2--); if ( c ) goto LAST; + c = (*p1--) - (*p2--); if ( c ) goto LAST; + c = (*p1--) - (*p2--); if ( c ) goto LAST; + c = (*p1--) - (*p2--); if ( c ) goto LAST; + c = (*p1--) - (*p2--); if ( c ) goto LAST; + c = (*p1--) - (*p2--); if ( c ) goto LAST; + c = (*p1--) - (*p2--); if ( c ) goto LAST; + c = (*p1--) - (*p2--); if ( c ) goto LAST; + i -= 8; + } + switch ( i ) { + case 6: + c = (*p1--) - (*p2--); if ( c ) goto LAST; + c = (*p1--) - (*p2--); if ( c ) goto LAST; + c = (*p1--) - (*p2--); if ( c ) goto LAST; + c = (*p1--) - (*p2--); if ( c ) goto LAST; + c = (*p1--) - (*p2--); if ( c ) goto LAST; + c = (*p1--) - (*p2--); if ( c ) goto LAST; + c = (*p1--) - (*p2--); if ( c ) goto LAST; + return 0; + case 5: + c = (*p1--) - (*p2--); if ( c ) goto LAST; + c = (*p1--) - (*p2--); if ( c ) goto LAST; + c = (*p1--) - (*p2--); if ( c ) goto LAST; + c = (*p1--) - (*p2--); if ( c ) goto LAST; + c = (*p1--) - (*p2--); if ( c ) goto LAST; + c = (*p1--) - (*p2--); if ( c ) goto LAST; + return 0; + case 4: + c = (*p1--) - (*p2--); if ( c ) goto LAST; + c = (*p1--) - (*p2--); if ( c ) goto LAST; + c = (*p1--) - (*p2--); if ( c ) goto LAST; + c = (*p1--) - (*p2--); if ( c ) goto LAST; + c = (*p1--) - (*p2--); if ( c ) goto LAST; + return 0; + case 3: + c = (*p1--) - (*p2--); if ( c ) goto LAST; + c = (*p1--) - (*p2--); if ( c ) goto LAST; + c = (*p1--) - (*p2--); if ( c ) goto LAST; + c = (*p1--) - (*p2--); if ( c ) goto LAST; + return 0; + case 2: + c = (*p1--) - (*p2--); if ( c ) goto LAST; + c = (*p1--) - (*p2--); if ( c ) goto LAST; + c = (*p1--) - (*p2--); if ( c ) goto LAST; + return 0; + case 1: + c = (*p1--) - (*p2--); if ( c ) goto LAST; + c = (*p1--) - (*p2--); if ( c ) goto LAST; + return 0; + case 0: + c = (*p1--) - (*p2--); if ( c ) goto LAST; + return 0; + default: + return 0; + } +LAST: + if ( c > 0 ) return -1; + else return 1; } } -int cmpdl_blex(n,d1,d2) -int n; -DL d1,d2; +int cmpdl_blex(int n,DL d1,DL d2) { int c; @@ -936,9 +1250,7 @@ DL d1,d2; } } -int cmpdl_bgradlex(n,d1,d2) -int n; -DL d1,d2; +int cmpdl_bgradlex(int n,DL d1,DL d2) { int e1,e2,c; @@ -956,9 +1268,7 @@ DL d1,d2; } } -int cmpdl_brevgradlex(n,d1,d2) -int n; -DL d1,d2; +int cmpdl_brevgradlex(int n,DL d1,DL d2) { int e1,e2,c; @@ -976,9 +1286,7 @@ DL d1,d2; } } -int cmpdl_brevrev(n,d1,d2) -int n; -DL d1,d2; +int cmpdl_brevrev(int n,DL d1,DL d2) { int e1,e2,f1,f2,c,i; @@ -1005,9 +1313,7 @@ DL d1,d2; } } -int cmpdl_bgradrev(n,d1,d2) -int n; -DL d1,d2; +int cmpdl_bgradrev(int n,DL d1,DL d2) { int e1,e2,f1,f2,c,i; @@ -1034,9 +1340,7 @@ DL d1,d2; } } -int cmpdl_blexrev(n,d1,d2) -int n; -DL d1,d2; +int cmpdl_blexrev(int n,DL d1,DL d2) { int e1,e2,f1,f2,c,i; @@ -1057,9 +1361,7 @@ DL d1,d2; } } -int cmpdl_elim(n,d1,d2) -int n; -DL d1,d2; +int cmpdl_elim(int n,DL d1,DL d2) { int e1,e2,i; @@ -1074,9 +1376,7 @@ DL d1,d2; return cmpdl_revgradlex(n,d1,d2); } -int cmpdl_weyl_elim(n,d1,d2) -int n; -DL d1,d2; +int cmpdl_weyl_elim(int n,DL d1,DL d2) { int e1,e2,i; @@ -1094,24 +1394,118 @@ DL d1,d2; else return -cmpdl_revlex(n,d1,d2); } -int cmpdl_order_pair(n,d1,d2) -int n; -DL d1,d2; +/* + a special ordering + 1. total order + 2. (-w,w) for the first 2*m variables + 3. DRL for the first 2*m variables +*/ + +extern int *current_weyl_weight_vector; + +int cmpdl_homo_ww_drl(int n,DL d1,DL d2) { + int e1,e2,m,i; + int *p1,*p2; + + if ( d1->td > d2->td ) + return 1; + else if ( d1->td < d2->td ) + return -1; + + m = n>>1; + for ( i = 0, e1 = e2 = 0, p1 = d1->d, p2 = d2->d; i < m; i++ ) { + e1 += current_weyl_weight_vector[i]*(p1[m+i] - p1[i]); + e2 += current_weyl_weight_vector[i]*(p2[m+i] - p2[i]); + } + if ( e1 > e2 ) + return 1; + else if ( e1 < e2 ) + return -1; + + e1 = d1->td - d1->d[n-1]; + e2 = d2->td - d2->d[n-1]; + if ( e1 > e2 ) + return 1; + else if ( e1 < e2 ) + return -1; + + for ( i= n - 1, p1 = d1->d+n-1, p2 = d2->d+n-1; + i >= 0 && *p1 == *p2; i--, p1--, p2-- ); + return i < 0 ? 0 : (*p1 < *p2 ? 1 : -1); +} + +int cmpdl_drl_zigzag(int n,DL d1,DL d2) +{ + int i,t,m; + int *p1,*p2; + + if ( d1->td > d2->td ) + return 1; + else if ( d1->td < d2->td ) + return -1; + else { + m = n>>1; + for ( i= m - 1, p1 = d1->d, p2 = d2->d; i >= 0; i-- ) { + if ( t = p1[m+i] - p2[m+i] ) return t > 0 ? -1 : 1; + if ( t = p1[i] - p2[i] ) return t > 0 ? -1 : 1; + } + return 0; + } +} + +int cmpdl_homo_ww_drl_zigzag(int n,DL d1,DL d2) +{ + int e1,e2,m,i,t; + int *p1,*p2; + + if ( d1->td > d2->td ) + return 1; + else if ( d1->td < d2->td ) + return -1; + + m = n>>1; + for ( i = 0, e1 = e2 = 0, p1 = d1->d, p2 = d2->d; i < m; i++ ) { + e1 += current_weyl_weight_vector[i]*(p1[m+i] - p1[i]); + e2 += current_weyl_weight_vector[i]*(p2[m+i] - p2[i]); + } + if ( e1 > e2 ) + return 1; + else if ( e1 < e2 ) + return -1; + + e1 = d1->td - d1->d[n-1]; + e2 = d2->td - d2->d[n-1]; + if ( e1 > e2 ) + return 1; + else if ( e1 < e2 ) + return -1; + + for ( i= m - 1, p1 = d1->d, p2 = d2->d; i >= 0; i-- ) { + if ( t = p1[m+i] - p2[m+i] ) return t > 0 ? -1 : 1; + if ( t = p1[i] - p2[i] ) return t > 0 ? -1 : 1; + } + return 0; +} + +int cmpdl_order_pair(int n,DL d1,DL d2) +{ int e1,e2,i,j,l; int *t1,*t2; - int len; + int len,head; struct order_pair *pair; - len = dp_current_spec.ord.block.length; - pair = dp_current_spec.ord.block.order_pair; + len = dp_current_spec->ord.block.length; + pair = dp_current_spec->ord.block.order_pair; + head = 0; for ( i = 0, t1 = d1->d, t2 = d2->d; i < len; i++ ) { l = pair[i].length; switch ( pair[i].order ) { case 0: for ( j = 0, e1 = e2 = 0; j < l; j++ ) { - e1 += t1[j]; e2 += t2[j]; + e1 += MUL_WEIGHT(t1[j],head+j); + e2 += MUL_WEIGHT(t2[j],head+j); } if ( e1 > e2 ) return 1; @@ -1125,7 +1519,8 @@ DL d1,d2; break; case 1: for ( j = 0, e1 = e2 = 0; j < l; j++ ) { - e1 += t1[j]; e2 += t2[j]; + e1 += MUL_WEIGHT(t1[j],head+j); + e2 += MUL_WEIGHT(t2[j],head+j); } if ( e1 > e2 ) return 1; @@ -1145,23 +1540,90 @@ DL d1,d2; default: error("cmpdl_order_pair : invalid order"); break; } - t1 += l; t2 += l; + t1 += l; t2 += l; head += l; } return 0; } -int cmpdl_matrix(n,d1,d2) -int n; -DL d1,d2; +int cmpdl_composite(int nv,DL d1,DL d2) { + int n,i,j,k,start,s,len; + int *dw; + struct sparse_weight *sw; + struct weight_or_block *worb; + int *w,*t1,*t2; + + n = dp_current_spec->ord.composite.length; + worb = dp_current_spec->ord.composite.w_or_b; + w = dp_dl_work; + for ( i = 0, t1 = d1->d, t2 = d2->d; i < nv; i++ ) + w[i] = t1[i]-t2[i]; + for ( i = 0; i < n; i++, worb++ ) { + len = worb->length; + switch ( worb->type ) { + case IS_DENSE_WEIGHT: + dw = worb->body.dense_weight; + for ( j = 0, s = 0; j < len; j++ ) + s += dw[j]*w[j]; + if ( s > 0 ) return 1; + else if ( s < 0 ) return -1; + break; + case IS_SPARSE_WEIGHT: + sw = worb->body.sparse_weight; + for ( j = 0, s = 0; j < len; j++ ) + s += sw[j].value*w[sw[j].pos]; + if ( s > 0 ) return 1; + else if ( s < 0 ) return -1; + break; + case IS_BLOCK: + start = worb->body.block.start; + switch ( worb->body.block.order ) { + case 0: + for ( j = 0, k = start, s = 0; j < len; j++, k++ ) { + s += MUL_WEIGHT(w[k],k); + } + if ( s > 0 ) return 1; + else if ( s < 0 ) return -1; + else { + for ( j = k-1; j >= start && w[j] == 0; j-- ); + if ( j >= start ) + return w[j] < 0 ? 1 : -1; + } + break; + case 1: + for ( j = 0, k = start, s = 0; j < len; j++, k++ ) { + s += MUL_WEIGHT(w[k],k); + } + if ( s > 0 ) return 1; + else if ( s < 0 ) return -1; + else { + for ( j = 0, k = start; j < len && w[j] == 0; j++, k++ ); + if ( j < len ) + return w[j] > 0 ? 1 : -1; + } + break; + case 2: + for ( j = 0, k = start; j < len && w[j] == 0; j++, k++ ); + if ( j < len ) + return w[j] > 0 ? 1 : -1; + break; + } + break; + } + } + return 0; +} + +int cmpdl_matrix(int n,DL d1,DL d2) +{ int *v,*w,*t1,*t2; int s,i,j,len; int **matrix; for ( i = 0, t1 = d1->d, t2 = d2->d, w = dp_dl_work; i < n; i++ ) w[i] = t1[i]-t2[i]; - len = dp_current_spec.ord.matrix.row; - matrix = dp_current_spec.ord.matrix.matrix; + len = dp_current_spec->ord.matrix.row; + matrix = dp_current_spec->ord.matrix.matrix; for ( j = 0; j < len; j++ ) { v = matrix[j]; for ( i = 0, s = 0; i < n; i++ ) @@ -1172,4 +1634,546 @@ DL d1,d2; return -1; } return 0; +} + +GeoBucket create_bucket() +{ + GeoBucket g; + + g = CALLOC(1,sizeof(struct oGeoBucket)); + g->m = 32; + return g; +} + +void add_bucket(GeoBucket g,NODE d,int nv) +{ + int l,k,m; + + l = length(d); + for ( k = 0, m = 1; l > m; k++, m <<= 1 ); + /* 2^(k-1) < l <= 2^k */ + d = symb_merge(g->body[k],d,nv); + for ( ; length(d) > (1<<(k)); k++ ) { + g->body[k] = 0; + d = symb_merge(g->body[k+1],d,nv); + } + g->body[k] = d; + g->m = MAX(g->m,k); +} + +DL remove_head_bucket(GeoBucket g,int nv) +{ + int j,i,c,m; + DL d; + + j = -1; + m = g->m; + for ( i = 0; i <= m; i++ ) { + if ( !g->body[i] ) + continue; + if ( j < 0 ) j = i; + else { + c = (*cmpdl)(nv,g->body[i]->body,g->body[j]->body); + if ( c > 0 ) + j = i; + else if ( c == 0 ) + g->body[i] = NEXT(g->body[i]); + } + } + if ( j < 0 ) + return 0; + else { + d = g->body[j]->body; + g->body[j] = NEXT(g->body[j]); + return d; + } +} + +/* DPV functions */ + +void adddv(VL vl,DPV p1,DPV p2,DPV *pr) +{ + int i,len; + DP *e; + + if ( !p1 || !p2 ) + error("adddv : invalid argument"); + else if ( p1->len != p2->len ) + error("adddv : size mismatch"); + else { + len = p1->len; + e = (DP *)MALLOC(p1->len*sizeof(DP)); + for ( i = 0; i < len; i++ ) + addd(vl,p1->body[i],p2->body[i],&e[i]); + MKDPV(len,e,*pr); + (*pr)->sugar = MAX(p1->sugar,p2->sugar); + } +} + +void subdv(VL vl,DPV p1,DPV p2,DPV *pr) +{ + int i,len; + DP *e; + + if ( !p1 || !p2 ) + error("subdv : invalid argument"); + else if ( p1->len != p2->len ) + error("subdv : size mismatch"); + else { + len = p1->len; + e = (DP *)MALLOC(p1->len*sizeof(DP)); + for ( i = 0; i < len; i++ ) + subd(vl,p1->body[i],p2->body[i],&e[i]); + MKDPV(len,e,*pr); + (*pr)->sugar = MAX(p1->sugar,p2->sugar); + } +} + +void chsgndv(DPV p1,DPV *pr) +{ + int i,len; + DP *e; + + if ( !p1 ) + error("subdv : invalid argument"); + else { + len = p1->len; + e = (DP *)MALLOC(p1->len*sizeof(DP)); + for ( i = 0; i < len; i++ ) + chsgnd(p1->body[i],&e[i]); + MKDPV(len,e,*pr); + (*pr)->sugar = p1->sugar; + } +} + +void muldv(VL vl,DP p1,DPV p2,DPV *pr) +{ + int i,len; + DP *e; + + len = p2->len; + e = (DP *)MALLOC(p2->len*sizeof(DP)); + if ( !p1 ) { + MKDPV(len,e,*pr); + (*pr)->sugar = 0; + } else { + for ( i = 0; i < len; i++ ) + muld(vl,p1,p2->body[i],&e[i]); + MKDPV(len,e,*pr); + (*pr)->sugar = p1->sugar + p2->sugar; + } +} + +int compdv(VL vl,DPV p1,DPV p2) +{ + int i,t,len; + + if ( p1->len != p2->len ) + error("compdv : size mismatch"); + else { + len = p1->len; + for ( i = 0; i < len; i++ ) + if ( t = compd(vl,p1->body[i],p2->body[i]) ) + return t; + return 0; + } +} + +int ni_next(int *a,int n) +{ + int i,j,k,kj; + + /* find the first nonzero a[j] */ + for ( j = 0; a[j] == 0; j++ ); + /* find the first zero a[k] after a[j] */ + for ( k = j; k < n && a[k] == 1; k++ ); + if ( k == n ) return 0; + /* a[0] = 0, ... , a[j-1] = 0, a[j] = 1, ..., a[k-1] = 1, a[k] = 0 */ + /* a[0] = 1,..., a[k-j-2] = 1, a[k-j-1] = 0, ..., a[k-1] = 0, a[k] = 1 */ + kj = k-j-1; + for ( i = 0; i < kj; i++ ) a[i] = 1; + for ( ; i < k; i++ ) a[i] = 0; + a[k] = 1; + return 1; +} + +int comp_nbm(NBM a,NBM b) +{ + int d,i,w; + int *ab,*bb; + + if ( a->d > b->d ) return 1; + else if ( a->d < b->d ) return -1; + else { + d = a->d; ab = a->b; bb = b->b; + w = (d+31)/32; + for ( i = 0; i < w; i++ ) + if ( ab[i] > bb[i] ) return 1; + else if ( ab[i] < bb[i] ) return -1; + return 0; + } +} + +NBM mul_nbm(NBM a,NBM b) +{ + int ad,bd,d,i,j; + int *ab,*bb,*mb; + NBM m; + Q c,c1; + NODE r; + NBP u; + + ad = a->d; bd = b->d; ab = a->b; bb = b->b; + d = ad + bd; + NEWNBM(m); NEWNBMBDY(m,d); + m->d = d; mulq(a->c,b->c,&m->c); mb = m->b; + j = 0; + for ( i = 0; i < ad; i++, j++ ) + if ( NBM_GET(ab,i) ) NBM_SET(mb,j); + else NBM_CLR(mb,j); + for ( i = 0; i < bd; i++, j++ ) + if ( NBM_GET(bb,i) ) NBM_SET(mb,j); + else NBM_CLR(mb,j); + return m; +} + +NBP shuffle_mul_nbm(NBM a,NBM b) +{ + int ad,bd,d,i,ai,bi,bit,s; + int *ab,*bb,*wmb,*w; + NBM wm,tm; + Q c,c1; + NODE r,t,t1,p; + NBP u; + + ad = a->d; bd = b->d; ab = a->b; bb = b->b; + d = ad + bd; + w = (int *)ALLOCA(d*sizeof(int)); + NEWNBM(wm); NEWNBMBDY(wm,d); wmb = wm->b; + for ( i = 0; i < ad; i++ ) w[i] = 1; + for ( ; i < d; i++ ) w[i] = 0; + mulq(a->c,b->c,&c); + r = 0; + do { + wm->d = d; wm->c = c; + ai = 0; bi = 0; + for ( i = 0; i < d; i++ ) { + if ( w[i] ) { bit = NBM_GET(ab,ai); ai++; } + else { bit = NBM_GET(bb,bi); bi++; } + if ( bit ) NBM_SET(wmb,i); + else NBM_CLR(wmb,i); + } + for ( p = 0, t = r; t; p = t, t = NEXT(t) ) { + tm = (NBM)BDY(t); + s = comp_nbm(tm,wm); + if ( s < 0 ) { + /* insert */ + MKNODE(t1,wm,t); + if ( !p ) r = t1; + else NEXT(p) = t1; + NEWNBM(wm); NEWNBMBDY(wm,d); wmb = wm->b; + break; + } else if ( s == 0 ) { + /* add coefs */ + addq(tm->c,c,&c1); + if ( c1 ) tm->c = c1; + else NEXT(p) = NEXT(t); + break; + } + } + if ( !t ) { + /* append */ + MKNODE(t1,wm,t); + if ( !p ) r = t1; + else NEXT(p) = t1; + NEWNBM(wm); NEWNBMBDY(wm,d); wmb = wm->b; + } + } while ( ni_next(w,d) ); + MKNBP(u,r); + return u; +} + +int nbmtoxky(NBM a,int *b) +{ + int d,i,j,k; + int *p; + + d = a->d; p = a->b; + for ( i = j = 0, k = 1; i < d; i++ ) { + if ( !NBM_GET(p,i) ) { + b[j++] = k; + k = 1; + i++; + } else k++; + } + return j; +} + +NBP harmonic_mul_nbm(NBM a,NBM b) +{ + int da,db,d,la,lb,lmax,lmin,l,lab,la1,lb1,lab1; + int i,j,k,ia,ib,s; + int *wa,*wb,*w,*wab,*wa1,*wmb; + Q c,c1; + NBM wm,tm; + NODE r,t1,t,p; + NBP u; + + da = a->d; db = b->d; d = da+db; + wa = (int *)ALLOCA(da*sizeof(int)); + wb = (int *)ALLOCA(db*sizeof(int)); + la = nbmtoxky(a,wa); + lb = nbmtoxky(b,wb); + mulq(a->c,b->c,&c); + /* wa[0],..,wa[la-1] <-> x^wa[0]y x^wa[1]y .. */ + /* lmax : total length */ + lmax = la+lb; + lmin = la>lb?la:lb; + w = (int *)ALLOCA(lmax*sizeof(int)); + /* position of a+b */ + wab = (int *)ALLOCA(lmax*sizeof(int)); + /* position of a */ + wa1 = (int *)ALLOCA(lmax*sizeof(int)); + NEWNBM(wm); NEWNBMBDY(wm,d); wmb = wm->b; + for ( l = lmin, r = 0; l <= lmax; l++ ) { + lab = lmax - l; + la1 = la - lab; + lb1 = lb - lab; + lab1 = l-lab; + /* partion l into three parts: a, b, a+b */ + /* initialize wab */ + for ( i = 0; i < lab; i++ ) wab[i] = 1; + for ( ; i < l; i++ ) wab[i] = 0; + do { + /* initialize wa1 */ + for ( i = 0; i < la1; i++ ) wa1[i] = 1; + for ( ; i < lab1; i++ ) wa1[i] = 0; + do { + ia = 0; ib = 0; + for ( i = j = 0; i < l; i++ ) + if ( wab[i] ) w[i] = wa[ia++]+wb[ib++]; + else if ( wa1[j++] ) w[i] = wa[ia++]; + else w[i] = wb[ib++]; + for ( i = j = 0; i < l; i++ ) { + for ( k = w[i]-1; k > 0; k--, j++ ) NBM_SET(wmb,j); + NBM_CLR(wmb,j); j++; + } + wm->d = j; wm->c = c; + for ( p = 0, t = r; t; p = t, t = NEXT(t) ) { + tm = (NBM)BDY(t); + s = comp_nbm(tm,wm); + if ( s < 0 ) { + /* insert */ + MKNODE(t1,wm,t); + if ( !p ) r = t1; + else NEXT(p) = t1; + NEWNBM(wm); NEWNBMBDY(wm,d); wmb = wm->b; + break; + } else if ( s == 0 ) { + /* add coefs */ + addq(tm->c,c,&c1); + if ( c1 ) tm->c = c1; + else NEXT(p) = NEXT(t); + break; + } + } + if ( !t ) { + /* append */ + MKNODE(t1,wm,t); + if ( !p ) r = t1; + else NEXT(p) = t1; + NEWNBM(wm); NEWNBMBDY(wm,d); wmb = wm->b; + } + } while ( ni_next(wa1,lab1) ); + } while ( ni_next(wab,l) ); + } + MKNBP(u,r); + return u; +} + +void addnbp(VL vl,NBP p1,NBP p2, NBP *rp) +{ + NODE b1,b2,br,br0; + NBM m1,m2,m; + Q c; + + if ( !p1 ) + *rp = p2; + else if ( !p2 ) + *rp = p1; + else { + for ( b1 = BDY(p1), b2 = BDY(p2), br0 = 0; b1 && b2; ) { + m1 = (NBM)BDY(b1); m2 = (NBM)BDY(b2); + switch ( comp_nbm(m1,m2) ) { + case 0: + addq(m1->c,m2->c,&c); + if ( c ) { + NEXTNODE(br0,br); + NEWNBM(m); m->d = m1->d; m->c = c; m->b = m1->b; + BDY(br) = (pointer)m; + } + b1 = NEXT(b1); b2 = NEXT(b2); break; + case 1: + NEXTNODE(br0,br); BDY(br) = BDY(b1); + b1 = NEXT(b1); break; + case -1: + NEXTNODE(br0,br); BDY(br) = BDY(b2); + b2 = NEXT(b2); break; + } + } + if ( !br0 ) + if ( b1 ) + br0 = b1; + else if ( b2 ) + br0 = b2; + else { + *rp = 0; + return; + } + else if ( b1 ) + NEXT(br) = b1; + else if ( b2 ) + NEXT(br) = b2; + else + NEXT(br) = 0; + MKNBP(*rp,br0); + } +} + +void subnbp(VL vl,NBP p1,NBP p2, NBP *rp) +{ + NBP t; + + chsgnnbp(p2,&t); + addnbp(vl,p1,t,rp); +} + +void chsgnnbp(NBP p,NBP *rp) +{ + NODE r0,r,b; + NBM m,m1; + + for ( r0 = 0, b = BDY(p); b; b = NEXT(b) ) { + NEXTNODE(r0,r); + m = (NBM)BDY(b); + NEWNBM(m1); m1->d = m->d; m1->b = m->b; chsgnq(m->c,&m1->c); + BDY(r) = m1; + } + if ( r0 ) NEXT(r) = 0; + MKNBP(*rp,r0); +} + +void mulnbmnbp(VL vl,NBM m,NBP p, NBP *rp); +void mulnbpnbm(VL vl,NBP p,NBM m, NBP *rp); + +void mulnbp(VL vl,NBP p1,NBP p2, NBP *rp) +{ + NODE b; + NBP r,t,s; + + if ( !p1 || !p2 ) *rp = 0; + else if ( length(BDY(p1)) < length(BDY(p2)) ) { + for ( r = 0, b = BDY(p1); b; b = NEXT(b) ) { + mulnbmnbp(vl,(NBM)BDY(b),p2,&t); + addnbp(vl,r,t,&s); r = s; + } + *rp = r; + } else { + for ( r = 0, b = BDY(p2); b; b = NEXT(b) ) { + mulnbpnbm(vl,p1,(NBM)BDY(b),&t); + addnbp(vl,r,t,&s); r = s; + } + *rp = r; + } +} + +void mulnbmnbp(VL vl,NBM m,NBP p, NBP *rp) +{ + NODE b,r0,r; + + if ( !p ) *rp = 0; + else { + for ( r0 = 0, b = BDY(p); b; b = NEXT(b) ) { + NEXTNODE(r0,r); + BDY(r) = mul_nbm(m,(NBM)BDY(b)); + } + if ( r0 ) NEXT(r) = 0; + MKNBP(*rp,r0); + } +} + +void mulnbpnbm(VL vl,NBP p,NBM m, NBP *rp) +{ + NODE b,r0,r; + + if ( !p ) *rp = 0; + else { + for ( r0 = 0, b = BDY(p); b; b = NEXT(b) ) { + NEXTNODE(r0,r); + BDY(r) = mul_nbm((NBM)BDY(b),m); + } + if ( r0 ) NEXT(r) = 0; + MKNBP(*rp,r0); + } +} + +void pwrnbp(VL vl,NBP a,Q q,NBP *c) +{ + int t; + NBP a1,a2; + N n1; + Q q1; + NBM m; + NODE r; + + if ( !q ) { + NEWNBM(m); m->d = 0; m->c = ONE; m->b = 0; + MKNODE(r,m,0); MKNBP(*c,r); + } else if ( !a ) + *c = 0; + else if ( UNIQ(q) ) + *c = a; + else { + t = divin(NM(q),2,&n1); NTOQ(n1,1,q1); + pwrnbp(vl,a,q1,&a1); + mulnbp(vl,a1,a1,&a2); + if ( t ) + mulnbp(vl,a2,a,c); + else + *c = a2; + } +} + +void shuffle_mulnbp(VL vl,NBP p1,NBP p2, NBP *rp) +{ + NODE b1,b2; + NBP r,t,s; + NBM m; + + if ( !p1 || !p2 ) *rp = 0; + else { + for ( r = 0, b1 = BDY(p1); b1; b1 = NEXT(b1) ) + for ( m = BDY(b1), b2 = BDY(p2); b2; b2 = NEXT(b2) ) { + t = shuffle_mul_nbm(m,(NBM)BDY(b2)); + addnbp(vl,r,t,&s); r = s; + } + *rp = r; + } +} + +void harmonic_mulnbp(VL vl,NBP p1,NBP p2, NBP *rp) +{ + NODE b1,b2; + NBP r,t,s; + NBM m; + + if ( !p1 || !p2 ) *rp = 0; + else { + for ( r = 0, b1 = BDY(p1); b1; b1 = NEXT(b1) ) + for ( m = BDY(b1), b2 = BDY(p2); b2; b2 = NEXT(b2) ) { + t = harmonic_mul_nbm(m,(NBM)BDY(b2)); + addnbp(vl,r,t,&s); r = s; + } + *rp = r; + } }