version 1.11, 2003/07/18 10:13:13 |
version 1.18, 2003/12/26 02:38:10 |
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* DEVELOPER SHALL HAVE NO LIABILITY IN CONNECTION WITH THE USE, |
* DEVELOPER SHALL HAVE NO LIABILITY IN CONNECTION WITH THE USE, |
* PERFORMANCE OR NON-PERFORMANCE OF THE SOFTWARE. |
* PERFORMANCE OR NON-PERFORMANCE OF THE SOFTWARE. |
* |
* |
* $OpenXM: OpenXM_contrib2/asir2000/engine/distm.c,v 1.10 2002/01/28 00:54:43 noro Exp $ |
* $OpenXM: OpenXM_contrib2/asir2000/engine/distm.c,v 1.17 2003/07/23 01:22:50 noro Exp $ |
*/ |
*/ |
#include "ca.h" |
#include "ca.h" |
#include "inline.h" |
#include "inline.h" |
Line 102 void mptomd(VL vl,int mod,VL dvl,P p,DP *pr) |
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Line 102 void mptomd(VL vl,int mod,VL dvl,P p,DP *pr) |
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} |
} |
} |
} |
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void mdtodp(DP p,DP *pr) |
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{ |
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MP m,mr0,mr; |
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if ( !p ) |
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*pr = 0; |
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else { |
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for ( m = BDY(p), mr0 = 0; m; m = NEXT(m) ) { |
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NEXTMP(mr0,mr); mr->dl = m->dl; |
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mptop(C(m),&C(mr)); |
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} |
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NEXT(mr) = 0; |
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MKDP(NV(p),mr0,*pr); |
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(*pr)->sugar = p->sugar; |
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} |
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} |
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void _mdtodp(DP p,DP *pr) |
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{ |
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MP m,mr0,mr; |
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int i; |
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Q q; |
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if ( !p ) |
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*pr = 0; |
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else { |
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for ( m = BDY(p), mr0 = 0; m; m = NEXT(m) ) { |
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NEXTMP(mr0,mr); mr->dl = m->dl; |
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i = ITOS(m->c); STOQ(i,q); C(mr) = (P)q; |
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} |
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NEXT(mr) = 0; |
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MKDP(NV(p),mr0,*pr); |
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(*pr)->sugar = p->sugar; |
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} |
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} |
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void mdtop(VL vl,int mod,VL dvl,DP p,P *pr) |
void mdtop(VL vl,int mod,VL dvl,DP p,P *pr) |
{ |
{ |
int n,i; |
int n,i; |
Line 884 void adddl_dup(int n,DL d1,DL d2,DL *dr) |
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Line 920 void adddl_dup(int n,DL d1,DL d2,DL *dr) |
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dt->td = d1->td + d2->td; |
dt->td = d1->td + d2->td; |
for ( i = 0; i < n; i++ ) |
for ( i = 0; i < n; i++ ) |
dt->d[i] = d1->d[i]+d2->d[i]; |
dt->d[i] = d1->d[i]+d2->d[i]; |
} |
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/* ------------------------------------------------------ */ |
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#if defined(__GNUC__) |
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#define INLINE inline |
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#elif defined(VISUAL) |
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#define INLINE __inline |
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#else |
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#define INLINE |
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#endif |
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typedef struct oPGeoBucket { |
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int m; |
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struct oND *body[32]; |
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} *PGeoBucket; |
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typedef struct oND { |
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struct oNM *body; |
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int nv; |
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int sugar; |
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} *ND; |
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typedef struct oNM { |
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struct oNM *next; |
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int td; |
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int c; |
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unsigned int dl[1]; |
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} *NM; |
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typedef struct oND_pairs { |
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struct oND_pairs *next; |
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int i1,i2; |
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int td,sugar; |
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unsigned int lcm[1]; |
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} *ND_pairs; |
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static ND *nps; |
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int nd_mod,nd_nvar; |
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int is_rlex; |
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int nd_epw,nd_bpe,nd_wpd; |
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NM _nm_free_list; |
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ND _nd_free_list; |
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ND_pairs _ndp_free_list; |
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extern int Top,Reverse; |
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int nd_psn,nd_pslen; |
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void GC_gcollect(); |
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NODE append_one(NODE,int); |
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#define HTD(d) ((d)->body->td) |
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#define HDL(d) ((d)->body->dl) |
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#define HC(d) ((d)->body->c) |
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#define NEWND_pairs(m) if(!_ndp_free_list)_NDP_alloc(); (m)=_ndp_free_list; _ndp_free_list = NEXT(_ndp_free_list) |
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#define NEWNM(m) if(!_nm_free_list)_NM_alloc(); (m)=_nm_free_list; _nm_free_list = NEXT(_nm_free_list) |
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#define MKND(n,m,d) if(!_nd_free_list)_ND_alloc(); (d)=_nd_free_list; _nd_free_list = (ND)BDY(_nd_free_list); (d)->nv=(n); BDY(d)=(m) |
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#define NEXTNM(r,c) \ |
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if(!(r)){NEWNM(r);(c)=(r);}else{NEWNM(NEXT(c));(c)=NEXT(c);} |
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#define NEXTNM2(r,c,s) \ |
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if(!(r)){(c)=(r)=(s);}else{NEXT(c)=(s);(c)=(s);} |
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#define FREENM(m) NEXT(m)=_nm_free_list; _nm_free_list=(m) |
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#define FREEND(m) BDY(m)=(NM)_nd_free_list; _nd_free_list=(m) |
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#define NEXTND_pairs(r,c) \ |
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if(!(r)){NEWND_pairs(r);(c)=(r);}else{NEWND_pairs(NEXT(c));(c)=NEXT(c);} |
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ND_pairs crit_B( ND_pairs d, int s ); |
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void nd_gr(LIST f,LIST v,int m,struct order_spec *ord,LIST *rp); |
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NODE nd_setup(NODE f); |
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int nd_newps(ND a); |
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ND_pairs nd_minp( ND_pairs d, ND_pairs *prest ); |
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NODE update_base(NODE nd,int ndp); |
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static ND_pairs equivalent_pairs( ND_pairs d1, ND_pairs *prest ); |
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int crit_2( int dp1, int dp2 ); |
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ND_pairs crit_F( ND_pairs d1 ); |
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ND_pairs crit_M( ND_pairs d1 ); |
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ND_pairs nd_newpairs( NODE g, int t ); |
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ND_pairs update_pairs( ND_pairs d, NODE /* of index */ g, int t); |
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NODE nd_gb(NODE f); |
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void nd_free_private_storage(); |
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void _NM_alloc(); |
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void _ND_alloc(); |
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int ndl_td(unsigned int *d); |
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ND nd_add(ND p1,ND p2); |
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ND nd_mul_nm(ND p,NM m0); |
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ND nd_sp(ND_pairs p); |
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ND nd_reducer(ND p1,ND p2); |
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ND nd_nf(NODE b,ND g,ND *ps,int full); |
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void ndl_print(unsigned int *dl); |
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void nd_print(ND p); |
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void ndp_print(ND_pairs d); |
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int nd_length(ND p); |
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void nd_monic(ND p); |
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void nd_free_private_storage() |
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{ |
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_nd_free_list = 0; |
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_nm_free_list = 0; |
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GC_gcollect(); |
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} |
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void _NM_alloc() |
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{ |
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NM p; |
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int i; |
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for ( i = 0; i < 1024; i++ ) { |
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p = (NM)GC_malloc(sizeof(struct oNM)+(nd_wpd-1)*sizeof(unsigned int)); |
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p->next = _nm_free_list; _nm_free_list = p; |
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} |
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} |
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void _ND_alloc() |
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{ |
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ND p; |
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int i; |
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for ( i = 0; i < 1024; i++ ) { |
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p = (ND)GC_malloc(sizeof(struct oND)); |
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p->body = (NM)_nd_free_list; _nd_free_list = p; |
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} |
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} |
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void _NDP_alloc() |
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{ |
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ND_pairs p; |
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int i; |
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for ( i = 0; i < 1024; i++ ) { |
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p = (ND_pairs)GC_malloc(sizeof(struct oND_pairs) |
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+(nd_wpd-1)*sizeof(unsigned int)); |
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p->next = _ndp_free_list; _ndp_free_list = p; |
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} |
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} |
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INLINE nd_length(ND p) |
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{ |
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NM m; |
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int i; |
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if ( !p ) |
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return 0; |
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else { |
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for ( i = 0, m = BDY(p); m; m = NEXT(m), i++ ); |
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return i; |
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} |
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} |
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INLINE int ndl_reducible(unsigned int *d1,unsigned int *d2) |
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{ |
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unsigned int u1,u2; |
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int i; |
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switch ( nd_bpe ) { |
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case 4: |
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for ( i = 0; i < nd_wpd; i++ ) { |
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u1 = d1[i]; u2 = d2[i]; |
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if ( (u1&0xf0000000) < (u2&0xf0000000) ) return 0; |
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if ( (u1&0xf000000) < (u2&0xf000000) ) return 0; |
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if ( (u1&0xf00000) < (u2&0xf00000) ) return 0; |
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if ( (u1&0xf0000) < (u2&0xf0000) ) return 0; |
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if ( (u1&0xf000) < (u2&0xf000) ) return 0; |
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if ( (u1&0xf00) < (u2&0xf00) ) return 0; |
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if ( (u1&0xf0) < (u2&0xf0) ) return 0; |
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if ( (u1&0xf) < (u2&0xf) ) return 0; |
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} |
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return 1; |
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break; |
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case 8: |
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for ( i = 0; i < nd_wpd; i++ ) { |
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u1 = d1[i]; u2 = d2[i]; |
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if ( (u1&0xff000000) < (u2&0xff000000) ) return 0; |
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if ( (u1&0xff0000) < (u2&0xff0000) ) return 0; |
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if ( (u1&0xff00) < (u2&0xff00) ) return 0; |
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if ( (u1&0xff) < (u2&0xff) ) return 0; |
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} |
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return 1; |
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break; |
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case 16: |
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for ( i = 0; i < nd_wpd; i++ ) { |
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u1 = d1[i]; u2 = d2[i]; |
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if ( (u1&0xffff0000) < (u2&0xffff0000) ) return 0; |
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if ( (u1&0xffff) < (u2&0xffff) ) return 0; |
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} |
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return 1; |
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break; |
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case 32: |
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for ( i = 0; i < nd_wpd; i++ ) |
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if ( d1[i] < d2[i] ) return 0; |
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return 1; |
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break; |
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default: |
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error("ndl_reducible : not implemented yet"); |
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} |
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} |
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INLINE void ndl_lcm(unsigned int *d1,unsigned *d2,unsigned int *d) |
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{ |
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unsigned int t1,t2,u,u1,u2; |
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int i; |
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switch ( nd_bpe ) { |
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case 4: |
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for ( i = 0; i < nd_wpd; i++ ) { |
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u1 = d1[i]; u2 = d2[i]; |
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t1 = (u1&0xf0000000); t2 = (u2&0xf0000000); u = t1>t2?t1:t2; |
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t1 = (u1&0xf000000); t2 = (u2&0xf000000); u |= t1>t2?t1:t2; |
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t1 = (u1&0xf00000); t2 = (u2&0xf00000); u |= t1>t2?t1:t2; |
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t1 = (u1&0xf0000); t2 = (u2&0xf0000); u |= t1>t2?t1:t2; |
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t1 = (u1&0xf000); t2 = (u2&0xf000); u |= t1>t2?t1:t2; |
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t1 = (u1&0xf00); t2 = (u2&0xf00); u |= t1>t2?t1:t2; |
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t1 = (u1&0xf0); t2 = (u2&0xf0); u |= t1>t2?t1:t2; |
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t1 = (u1&0xf); t2 = (u2&0xf); u |= t1>t2?t1:t2; |
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d[i] = u; |
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} |
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break; |
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case 8: |
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for ( i = 0; i < nd_wpd; i++ ) { |
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u1 = d1[i]; u2 = d2[i]; |
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t1 = (u1&0xff000000); t2 = (u2&0xff000000); u = t1>t2?t1:t2; |
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t1 = (u1&0xff0000); t2 = (u2&0xff0000); u |= t1>t2?t1:t2; |
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t1 = (u1&0xff00); t2 = (u2&0xff00); u |= t1>t2?t1:t2; |
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t1 = (u1&0xff); t2 = (u2&0xff); u |= t1>t2?t1:t2; |
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d[i] = u; |
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} |
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break; |
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case 16: |
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for ( i = 0; i < nd_wpd; i++ ) { |
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u1 = d1[i]; u2 = d2[i]; |
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t1 = (u1&0xffff0000); t2 = (u2&0xffff0000); u = t1>t2?t1:t2; |
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t1 = (u1&0xffff); t2 = (u2&0xffff); u |= t1>t2?t1:t2; |
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d[i] = u; |
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} |
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break; |
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case 32: |
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for ( i = 0; i < nd_wpd; i++ ) { |
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u1 = d1[i]; u2 = d2[i]; |
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d[i] = u1>u2?u1:u2; |
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} |
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break; |
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default: |
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error("ndl_lcm : not implemented yet"); |
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} |
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} |
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INLINE int ndl_td(unsigned int *d) |
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{ |
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unsigned int t,u; |
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int i; |
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switch ( nd_bpe ) { |
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case 4: |
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for ( t = 0, i = 0; i < nd_wpd; i++ ) { |
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u = d[i]; |
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t += ((u&0xf0000000)>>28)+((u&0xf000000)>>24) |
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+((u&0xf00000)>>20)+((u&0xf0000)>>16) |
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+((u&0xf000)>>12)+((u&0xf00)>>8)+((u&0xf0)>>4)+(u&0xf); |
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} |
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break; |
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case 8: |
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for ( t = 0, i = 0; i < nd_wpd; i++ ) { |
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u = d[i]; |
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t += ((u&0xff000000)>>24)+((u&0xff0000)>>16) |
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+((u&0xff00)>>8)+(u&0xff); |
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} |
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break; |
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case 16: |
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for ( t = 0, i = 0; i < nd_wpd; i++ ) { |
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u = d[i]; |
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t += ((u&0xffff0000)>>16)+(u&0xffff); |
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} |
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break; |
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case 32: |
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for ( t = 0, i = 0; i < nd_wpd; i++ ) |
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t += d[i]; |
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break; |
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default: |
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error("ndl_td : not implemented yet"); |
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} |
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return t; |
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} |
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INLINE int ndl_compare(unsigned int *d1,unsigned int *d2) |
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{ |
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int i; |
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for ( i = 0; i < nd_wpd; i++ ) |
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if ( d1[i] > d2[i] ) |
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return is_rlex ? -1 : 1; |
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else if ( d1[i] < d2[i] ) |
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return is_rlex ? 1 : -1; |
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return 0; |
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} |
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INLINE int ndl_equal(unsigned int *d1,unsigned int *d2) |
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{ |
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int i; |
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for ( i = 0; i < nd_wpd; i++ ) |
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if ( d1[i] != d2[i] ) |
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return 0; |
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return 1; |
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} |
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INLINE void ndl_add(unsigned int *d1,unsigned int *d2,unsigned int *d) |
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{ |
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int i; |
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for ( i = 0; i < nd_wpd; i++ ) |
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d[i] = d1[i]+d2[i]; |
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} |
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INLINE void ndl_sub(unsigned int *d1,unsigned int *d2,unsigned int *d) |
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{ |
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int i; |
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for ( i = 0; i < nd_wpd; i++ ) |
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d[i] = d1[i]-d2[i]; |
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} |
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INLINE int ndl_disjoint(unsigned int *d1,unsigned int *d2) |
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{ |
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unsigned int t1,t2,u,u1,u2; |
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int i; |
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switch ( nd_bpe ) { |
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case 4: |
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for ( i = 0; i < nd_wpd; i++ ) { |
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u1 = d1[i]; u2 = d2[i]; |
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t1 = u1&0xf0000000; t2 = u2&0xf0000000; if ( t1&&t2 ) return 0; |
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t1 = u1&0xf000000; t2 = u2&0xf000000; if ( t1&&t2 ) return 0; |
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t1 = u1&0xf00000; t2 = u2&0xf00000; if ( t1&&t2 ) return 0; |
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t1 = u1&0xf0000; t2 = u2&0xf0000; if ( t1&&t2 ) return 0; |
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t1 = u1&0xf000; t2 = u2&0xf000; if ( t1&&t2 ) return 0; |
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t1 = u1&0xf00; t2 = u2&0xf00; if ( t1&&t2 ) return 0; |
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t1 = u1&0xf0; t2 = u2&0xf0; if ( t1&&t2 ) return 0; |
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t1 = u1&0xf; t2 = u2&0xf; if ( t1&&t2 ) return 0; |
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} |
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return 1; |
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break; |
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case 8: |
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for ( i = 0; i < nd_wpd; i++ ) { |
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u1 = d1[i]; u2 = d2[i]; |
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t1 = u1&0xff000000; t2 = u2&0xff000000; if ( t1&&t2 ) return 0; |
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t1 = u1&0xff0000; t2 = u2&0xff0000; if ( t1&&t2 ) return 0; |
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t1 = u1&0xff00; t2 = u2&0xff00; if ( t1&&t2 ) return 0; |
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t1 = u1&0xff; t2 = u2&0xff; if ( t1&&t2 ) return 0; |
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} |
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return 1; |
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break; |
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case 16: |
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for ( i = 0; i < nd_wpd; i++ ) { |
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u1 = d1[i]; u2 = d2[i]; |
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t1 = u1&0xffff0000; t2 = u2&0xffff0000; if ( t1&&t2 ) return 0; |
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t1 = u1&0xffff; t2 = u2&0xffff; if ( t1&&t2 ) return 0; |
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} |
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return 1; |
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break; |
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case 32: |
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for ( i = 0; i < nd_wpd; i++ ) |
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if ( d1[i] && d2[i] ) return 0; |
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return 1; |
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break; |
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default: |
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error("ndl_disjoint : not implemented yet"); |
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} |
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} |
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ND nd_add(ND p1,ND p2) |
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{ |
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int n,c; |
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int t; |
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ND r; |
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NM m1,m2,mr0,mr,s; |
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if ( !p1 ) |
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return p2; |
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else if ( !p2 ) |
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return p1; |
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else { |
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for ( n = NV(p1), m1 = BDY(p1), m2 = BDY(p2), mr0 = 0; m1 && m2; ) { |
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if ( m1->td > m2->td ) |
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c = 1; |
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else if ( m1->td < m2->td ) |
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c = -1; |
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else |
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c = ndl_compare(m1->dl,m2->dl); |
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switch ( c ) { |
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case 0: |
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t = ((C(m1))+(C(m2))) - nd_mod; |
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if ( t < 0 ) |
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t += nd_mod; |
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s = m1; m1 = NEXT(m1); |
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if ( t ) { |
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NEXTNM2(mr0,mr,s); C(mr) = (t); |
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} else { |
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FREENM(s); |
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} |
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s = m2; m2 = NEXT(m2); FREENM(s); |
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break; |
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case 1: |
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s = m1; m1 = NEXT(m1); NEXTNM2(mr0,mr,s); |
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break; |
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case -1: |
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s = m2; m2 = NEXT(m2); NEXTNM2(mr0,mr,s); |
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break; |
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} |
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} |
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if ( !mr0 ) |
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if ( m1 ) |
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mr0 = m1; |
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else if ( m2 ) |
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mr0 = m2; |
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else |
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return 0; |
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else if ( m1 ) |
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NEXT(mr) = m1; |
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else if ( m2 ) |
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NEXT(mr) = m2; |
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else |
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NEXT(mr) = 0; |
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BDY(p1) = mr0; |
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p1->sugar = MAX(p1->sugar,p2->sugar); |
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FREEND(p2); |
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return p1; |
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} |
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} |
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|
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INLINE ND nd_mul_nm(ND p,NM m0) |
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{ |
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NM m,mr,mr0; |
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unsigned int *d,*dt,*dm; |
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int c,n,td; |
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int *pt,*p1,*p2; |
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ND r; |
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|
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if ( !p ) |
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return 0; |
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else { |
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n = NV(p); m = BDY(p); |
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d = m0->dl; td = m0->td; c = C(m0); |
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mr0 = 0; |
|
for ( ; m; m = NEXT(m) ) { |
|
NEXTNM(mr0,mr); |
|
C(mr) = (C(m)*c)%nd_mod; |
|
mr->td = m->td+td; |
|
ndl_add(m->dl,d,mr->dl); |
|
} |
|
NEXT(mr) = 0; |
|
MKND(NV(p),mr0,r); |
|
r->sugar = p->sugar + td; |
|
return r; |
|
} |
|
} |
|
|
|
ND nd_reduce(ND p1,ND p2) |
|
{ |
|
int c,t,td,td2,mul; |
|
NM m2,prev,head,cur,new; |
|
unsigned int *d; |
|
|
|
if ( !p1 ) |
|
return 0; |
|
else { |
|
mul = ((nd_mod-HC(p1))*invm(HC(p2),nd_mod))%nd_mod; |
|
td = HTD(p1)-HTD(p2); |
|
d = (unsigned int *)ALLOCA(nd_wpd*sizeof(unsigned int)); |
|
ndl_sub(HDL(p1),HDL(p2),d); |
|
prev = 0; head = cur = BDY(p1); |
|
NEWNM(new); |
|
for ( m2 = BDY(p2); m2; ) { |
|
td2 = new->td = m2->td+td; |
|
ndl_add(m2->dl,d,new->dl); |
|
if ( !cur ) { |
|
C(new) = (C(m2)*mul)%nd_mod; |
|
if ( !prev ) { |
|
prev = new; |
|
NEXT(prev) = 0; |
|
head = prev; |
|
} else { |
|
NEXT(prev) = new; |
|
NEXT(new) = 0; |
|
prev = new; |
|
} |
|
m2 = NEXT(m2); |
|
NEWNM(new); |
|
continue; |
|
} |
|
if ( cur->td > td2 ) |
|
c = 1; |
|
else if ( cur->td < td2 ) |
|
c = -1; |
|
else |
|
c = ndl_compare(cur->dl,new->dl); |
|
switch ( c ) { |
|
case 0: |
|
t = (C(cur)+C(m2)*mul)%nd_mod; |
|
if ( t ) |
|
C(cur) = t; |
|
else if ( !prev ) { |
|
head = NEXT(cur); |
|
FREENM(cur); |
|
cur = head; |
|
} else { |
|
NEXT(prev) = NEXT(cur); |
|
FREENM(cur); |
|
cur = NEXT(prev); |
|
} |
|
m2 = NEXT(m2); |
|
break; |
|
case 1: |
|
prev = cur; |
|
cur = NEXT(cur); |
|
break; |
|
case -1: |
|
if ( !prev ) { |
|
/* cur = head */ |
|
prev = new; |
|
C(prev) = (C(m2)*mul)%nd_mod; |
|
NEXT(prev) = head; |
|
head = prev; |
|
} else { |
|
C(new) = (C(m2)*mul)%nd_mod; |
|
NEXT(prev) = new; |
|
NEXT(new) = cur; |
|
prev = new; |
|
} |
|
NEWNM(new); |
|
m2 = NEXT(m2); |
|
break; |
|
} |
|
} |
|
FREENM(new); |
|
if ( head ) { |
|
BDY(p1) = head; |
|
p1->sugar = MAX(p1->sugar,p2->sugar+td); |
|
return p1; |
|
} else { |
|
FREEND(p1); |
|
return 0; |
|
} |
|
|
|
} |
|
} |
|
|
|
ND nd_sp(ND_pairs p) |
|
{ |
|
NM m; |
|
ND p1,p2,t1,t2; |
|
unsigned int *lcm; |
|
int td; |
|
|
|
p1 = nps[p->i1]; |
|
p2 = nps[p->i2]; |
|
lcm = p->lcm; |
|
td = p->td; |
|
NEWNM(m); |
|
C(m) = HC(p2); m->td = td-HTD(p1); ndl_sub(lcm,HDL(p1),m->dl); NEXT(m) = 0; |
|
t1 = nd_mul_nm(p1,m); |
|
C(m) = nd_mod-HC(p1); m->td = td-HTD(p2); ndl_sub(lcm,HDL(p2),m->dl); |
|
t2 = nd_mul_nm(p2,m); |
|
FREENM(m); |
|
return nd_add(t1,t2); |
|
} |
|
|
|
ND nd_reducer(ND p1,ND p2) |
|
{ |
|
NM m; |
|
ND r; |
|
|
|
NEWNM(m); |
|
C(m) = ((nd_mod-HC(p1))*invm(HC(p2),nd_mod))%nd_mod; |
|
m->td = HTD(p1)-HTD(p2); |
|
ndl_sub(HDL(p1),HDL(p2),m->dl); |
|
NEXT(m) = 0; |
|
r = nd_mul_nm(p2,m); |
|
FREENM(m); |
|
return r; |
|
} |
|
|
|
#if 1 |
|
ND nd_nf(NODE b,ND g,ND *ps,int full) |
|
{ |
|
ND u,p,d,red; |
|
NODE l; |
|
NM m,mrd; |
|
int sugar,psugar,n,h_reducible; |
|
|
|
if ( !g ) { |
|
return 0; |
|
} |
|
sugar = g->sugar; |
|
n = g->nv; |
|
for ( d = 0; g; ) { |
|
for ( h_reducible = 0, l = b; l; l = NEXT(l) ) { |
|
p = ps[(int)BDY(l)]; |
|
if ( HTD(g)>=HTD(p) && ndl_reducible(HDL(g),HDL(p)) ) { |
|
h_reducible = 1; |
|
psugar = HTD(g)-HTD(p) + p->sugar; |
|
#if 0 |
|
red = nd_reducer(g,p); |
|
g = nd_add(g,red); |
|
#else |
|
g = nd_reduce(g,p); |
|
#endif |
|
sugar = MAX(sugar,psugar); |
|
if ( !g ) { |
|
if ( d ) |
|
d->sugar = sugar; |
|
return d; |
|
} |
|
break; |
|
} |
|
} |
|
if ( !h_reducible ) { |
|
/* head term is not reducible */ |
|
if ( !full ) { |
|
if ( g ) |
|
g->sugar = sugar; |
|
return g; |
|
} else { |
|
m = BDY(g); |
|
if ( NEXT(m) ) { |
|
BDY(g) = NEXT(m); NEXT(m) = 0; |
|
} else { |
|
FREEND(g); g = 0; |
|
} |
|
if ( d ) { |
|
for ( mrd = BDY(d); NEXT(mrd); mrd = NEXT(mrd) ); |
|
NEXT(mrd) = m; |
|
} else { |
|
MKND(n,m,d); |
|
} |
|
} |
|
} |
|
} |
|
if ( d ) |
|
d->sugar = sugar; |
|
return d; |
|
} |
|
#else |
|
|
|
ND nd_remove_head(ND p) |
|
{ |
|
NM m; |
|
|
|
m = BDY(p); |
|
if ( !NEXT(m) ) { |
|
FREEND(p); |
|
p = 0; |
|
} else |
|
BDY(p) = NEXT(m); |
|
FREENM(m); |
|
return p; |
|
} |
|
|
|
PGeoBucket create_pbucket() |
|
{ |
|
PGeoBucket g; |
|
|
|
g = CALLOC(1,sizeof(struct oPGeoBucket)); |
|
g->m = -1; |
|
return g; |
|
} |
|
|
|
void add_pbucket(PGeoBucket g,ND d) |
|
{ |
|
int l,k,m; |
|
|
|
l = nd_length(d); |
|
for ( k = 0, m = 1; l > m; k++, m <<= 2 ); |
|
/* 4^(k-1) < l <= 4^k */ |
|
d = nd_add(g->body[k],d); |
|
for ( ; d && nd_length(d) > 1<<(2*k); k++ ) { |
|
g->body[k] = 0; |
|
d = nd_add(g->body[k+1],d); |
|
} |
|
g->body[k] = d; |
|
g->m = MAX(g->m,k); |
|
} |
|
|
|
int head_pbucket(PGeoBucket g) |
|
{ |
|
int j,i,c,k,nv,sum; |
|
unsigned int *di,*dj; |
|
ND gi,gj; |
|
|
|
k = g->m; |
|
while ( 1 ) { |
|
j = -1; |
|
for ( i = 0; i <= k; i++ ) { |
|
if ( !(gi = g->body[i]) ) |
|
continue; |
|
if ( j < 0 ) { |
|
j = i; |
|
gj = g->body[j]; |
|
dj = HDL(gj); |
|
sum = HC(gj); |
|
} else { |
|
di = HDL(gi); |
|
nv = NV(gi); |
|
if ( HTD(gi) > HTD(gj) ) |
|
c = 1; |
|
else if ( HTD(gi) < HTD(gj) ) |
|
c = -1; |
|
else |
|
c = ndl_compare(di,dj); |
|
if ( c > 0 ) { |
|
if ( sum ) |
|
HC(gj) = sum; |
|
else |
|
g->body[j] = nd_remove_head(gj); |
|
j = i; |
|
gj = g->body[j]; |
|
dj = HDL(gj); |
|
sum = HC(gj); |
|
} else if ( c == 0 ) { |
|
sum = sum+HC(gi)-nd_mod; |
|
if ( sum < 0 ) |
|
sum += nd_mod; |
|
g->body[i] = nd_remove_head(gi); |
|
} |
|
} |
|
} |
|
if ( j < 0 ) |
|
return -1; |
|
else if ( sum ) { |
|
HC(gj) = sum; |
|
return j; |
|
} else |
|
g->body[j] = nd_remove_head(gj); |
|
} |
|
} |
|
|
|
ND normalize_pbucket(PGeoBucket g) |
|
{ |
|
int i; |
|
ND r,t; |
|
|
|
r = 0; |
|
for ( i = 0; i <= g->m; i++ ) |
|
r = nd_add(r,g->body[i]); |
|
return r; |
|
} |
|
|
|
ND nd_nf(NODE b,ND g,ND *ps,int full) |
|
{ |
|
ND u,p,d,red; |
|
NODE l; |
|
NM m,mrd; |
|
int sugar,psugar,n,h_reducible,h; |
|
PGeoBucket bucket; |
|
|
|
if ( !g ) { |
|
return 0; |
|
} |
|
sugar = g->sugar; |
|
n = g->nv; |
|
bucket = create_pbucket(); |
|
add_pbucket(bucket,g); |
|
d = 0; |
|
while ( 1 ) { |
|
h = head_pbucket(bucket); |
|
if ( h < 0 ) { |
|
if ( d ) |
|
d->sugar = sugar; |
|
return d; |
|
} |
|
g = bucket->body[h]; |
|
for ( h_reducible = 0, l = b; l; l = NEXT(l) ) { |
|
p = ps[(int)BDY(l)]; |
|
if ( ndl_reducible(HDL(g),HDL(p)) ) { |
|
h_reducible = 1; |
|
psugar = HTD(g)-HTD(p) + p->sugar; |
|
red = nd_reducer(g,p); |
|
bucket->body[h] = nd_remove_head(g); |
|
red = nd_remove_head(red); |
|
add_pbucket(bucket,red); |
|
sugar = MAX(sugar,psugar); |
|
break; |
|
} |
|
} |
|
if ( !h_reducible ) { |
|
/* head term is not reducible */ |
|
if ( !full ) { |
|
g = normalize_pbucket(bucket); |
|
if ( g ) |
|
g->sugar = sugar; |
|
return g; |
|
} else { |
|
m = BDY(g); |
|
if ( NEXT(m) ) { |
|
BDY(g) = NEXT(m); NEXT(m) = 0; |
|
} else { |
|
FREEND(g); g = 0; |
|
} |
|
bucket->body[h] = g; |
|
NEXT(m) = 0; |
|
if ( d ) { |
|
for ( mrd = BDY(d); NEXT(mrd); mrd = NEXT(mrd) ); |
|
NEXT(mrd) = m; |
|
} else { |
|
MKND(n,m,d); |
|
} |
|
} |
|
} |
|
} |
|
} |
|
#endif |
|
|
|
NODE nd_gb(NODE f) |
|
{ |
|
int i,nh; |
|
NODE r,g,gall; |
|
ND_pairs d; |
|
ND_pairs l; |
|
ND h,nf; |
|
|
|
for ( gall = g = 0, d = 0, r = f; r; r = NEXT(r) ) { |
|
i = (int)BDY(r); |
|
d = update_pairs(d,g,i); |
|
g = update_base(g,i); |
|
gall = append_one(gall,i); |
|
} |
|
while ( d ) { |
|
#if 0 |
|
ndp_print(d); |
|
#endif |
|
l = nd_minp(d,&d); |
|
h = nd_sp(l); |
|
nf = nd_nf(gall,h,nps,!Top); |
|
if ( nf ) { |
|
printf("+"); fflush(stdout); |
|
#if 0 |
|
ndl_print(HDL(nf)); fflush(stdout); |
|
#endif |
|
nh = nd_newps(nf); |
|
d = update_pairs(d,g,nh); |
|
g = update_base(g,nh); |
|
gall = append_one(gall,nh); |
|
} else { |
|
printf("."); fflush(stdout); |
|
} |
|
} |
|
return g; |
|
} |
|
|
|
ND_pairs update_pairs( ND_pairs d, NODE /* of index */ g, int t) |
|
{ |
|
ND_pairs d1,nd,cur,head,prev; |
|
|
|
if ( !g ) return d; |
|
d = crit_B(d,t); |
|
d1 = nd_newpairs(g,t); |
|
d1 = crit_M(d1); |
|
d1 = crit_F(d1); |
|
prev = 0; cur = head = d1; |
|
while ( cur ) { |
|
if ( crit_2( cur->i1,cur->i2 ) ) { |
|
if ( !prev ) { |
|
head = cur = NEXT(cur); |
|
} else { |
|
cur = NEXT(prev) = NEXT(cur); |
|
} |
|
} else { |
|
prev = cur; |
|
cur = NEXT(cur); |
|
} |
|
} |
|
if ( !d ) |
|
return head; |
|
else { |
|
nd = d; |
|
while ( NEXT(nd) ) |
|
nd = NEXT(nd); |
|
NEXT(nd) = head; |
|
return d; |
|
} |
|
} |
|
|
|
ND_pairs nd_newpairs( NODE g, int t ) |
|
{ |
|
NODE h; |
|
unsigned int *dl; |
|
int td,ts,s; |
|
ND_pairs r,r0; |
|
|
|
dl = HDL(nps[t]); |
|
td = HTD(nps[t]); |
|
ts = nps[t]->sugar - td; |
|
for ( r0 = 0, h = g; h; h = NEXT(h) ) { |
|
NEXTND_pairs(r0,r); |
|
r->i1 = (int)BDY(h); |
|
r->i2 = t; |
|
ndl_lcm(HDL(nps[r->i1]),dl,r->lcm); |
|
r->td = ndl_td(r->lcm); |
|
s = nps[r->i1]->sugar-HTD(nps[r->i1]); |
|
r->sugar = MAX(s,ts) + r->td; |
|
} |
|
NEXT(r) = 0; |
|
return r0; |
|
} |
|
|
|
ND_pairs crit_B( ND_pairs d, int s ) |
|
{ |
|
ND_pairs cur,head,prev; |
|
unsigned int *t,*tl,*lcm; |
|
int td,tdl; |
|
|
|
if ( !d ) return 0; |
|
t = HDL(nps[s]); |
|
prev = 0; |
|
head = cur = d; |
|
lcm = (unsigned int *)ALLOCA(nd_wpd*sizeof(unsigned int)); |
|
while ( cur ) { |
|
tl = cur->lcm; |
|
if ( ndl_reducible(tl,t) |
|
&& (ndl_lcm(HDL(nps[cur->i1]),t,lcm),!ndl_equal(lcm,tl)) |
|
&& (ndl_lcm(HDL(nps[cur->i2]),t,lcm),!ndl_equal(lcm,tl)) ) { |
|
if ( !prev ) { |
|
head = cur = NEXT(cur); |
|
} else { |
|
cur = NEXT(prev) = NEXT(cur); |
|
} |
|
} else { |
|
prev = cur; |
|
cur = NEXT(cur); |
|
} |
|
} |
|
return head; |
|
} |
|
|
|
ND_pairs crit_M( ND_pairs d1 ) |
|
{ |
|
ND_pairs e,d2,d3,dd,p; |
|
unsigned int *id,*jd; |
|
int itd,jtd; |
|
|
|
for ( dd = 0, e = d1; e; e = d3 ) { |
|
if ( !(d2 = NEXT(e)) ) { |
|
NEXT(e) = dd; |
|
return e; |
|
} |
|
id = e->lcm; |
|
itd = e->td; |
|
for ( d3 = 0; d2; d2 = p ) { |
|
p = NEXT(d2), |
|
jd = d2->lcm; |
|
jtd = d2->td; |
|
if ( jtd == itd ) |
|
if ( id == jd ); |
|
else if ( ndl_reducible(jd,id) ) continue; |
|
else if ( ndl_reducible(id,jd) ) goto delit; |
|
else ; |
|
else if ( jtd > itd ) |
|
if ( ndl_reducible(jd,id) ) continue; |
|
else ; |
|
else if ( ndl_reducible(id,jd ) ) goto delit; |
|
NEXT(d2) = d3; |
|
d3 = d2; |
|
} |
|
NEXT(e) = dd; |
|
dd = e; |
|
continue; |
|
/**/ |
|
delit: NEXT(d2) = d3; |
|
d3 = d2; |
|
for ( ; p; p = d2 ) { |
|
d2 = NEXT(p); |
|
NEXT(p) = d3; |
|
d3 = p; |
|
} |
|
} |
|
return dd; |
|
} |
|
|
|
ND_pairs crit_F( ND_pairs d1 ) |
|
{ |
|
ND_pairs rest, head; |
|
ND_pairs last, p, r, w; |
|
int s; |
|
|
|
for ( head = last = 0, p = d1; NEXT(p); ) { |
|
r = w = equivalent_pairs(p,&rest); |
|
s = r->sugar; |
|
while ( w = NEXT(w) ) |
|
if ( crit_2(w->i1,w->i2) ) { |
|
r = w; |
|
break; |
|
} else if ( w->sugar < s ) { |
|
r = w; |
|
s = r->sugar; |
|
} |
|
if ( last ) NEXT(last) = r; |
|
else head = r; |
|
NEXT(last = r) = 0; |
|
p = rest; |
|
if ( !p ) return head; |
|
} |
|
if ( !last ) return p; |
|
NEXT(last) = p; |
|
return head; |
|
} |
|
|
|
int crit_2( int dp1, int dp2 ) |
|
{ |
|
return ndl_disjoint(HDL(nps[dp1]),HDL(nps[dp2])); |
|
} |
|
|
|
static ND_pairs equivalent_pairs( ND_pairs d1, ND_pairs *prest ) |
|
{ |
|
ND_pairs w,p,r,s; |
|
unsigned int *d; |
|
int td; |
|
|
|
w = d1; |
|
d = w->lcm; |
|
td = w->td; |
|
s = NEXT(w); |
|
NEXT(w) = 0; |
|
for ( r = 0; s; s = p ) { |
|
p = NEXT(s); |
|
if ( td == s->td && ndl_equal(d,s->lcm) ) { |
|
NEXT(s) = w; |
|
w = s; |
|
} else { |
|
NEXT(s) = r; |
|
r = s; |
|
} |
|
} |
|
*prest = r; |
|
return w; |
|
} |
|
|
|
NODE update_base(NODE nd,int ndp) |
|
{ |
|
unsigned int *dl, *dln; |
|
NODE last, p, head; |
|
int td,tdn; |
|
|
|
dl = HDL(nps[ndp]); |
|
td = HTD(nps[ndp]); |
|
for ( head = last = 0, p = nd; p; ) { |
|
dln = HDL(nps[(int)BDY(p)]); |
|
tdn = HTD(nps[(int)BDY(p)]); |
|
if ( tdn >= td && ndl_reducible( dln, dl ) ) { |
|
p = NEXT(p); |
|
if ( last ) NEXT(last) = p; |
|
} else { |
|
if ( !last ) head = p; |
|
p = NEXT(last = p); |
|
} |
|
} |
|
head = append_one(head,ndp); |
|
return head; |
|
} |
|
|
|
ND_pairs nd_minp( ND_pairs d, ND_pairs *prest ) |
|
{ |
|
ND_pairs m,ml,p,l; |
|
unsigned int *lcm; |
|
int s,td,len,tlen,c; |
|
|
|
if ( !(p = NEXT(m = d)) ) { |
|
*prest = p; |
|
NEXT(m) = 0; |
|
return m; |
|
} |
|
lcm = m->lcm; |
|
s = m->sugar; |
|
td = m->td; |
|
len = nd_length(nps[m->i1])+nd_length(nps[m->i2]); |
|
for ( ml = 0, l = m; p; p = NEXT(l = p) ) { |
|
if (p->sugar < s) |
|
goto find; |
|
else if ( p->sugar == s ) { |
|
if ( p->td < td ) |
|
goto find; |
|
else if ( p->td == td ) { |
|
c = ndl_compare(p->lcm,lcm); |
|
if ( c < 0 ) |
|
goto find; |
|
else if ( c == 0 ) { |
|
tlen = nd_length(nps[p->i1])+nd_length(nps[p->i2]); |
|
if ( tlen < len ) |
|
goto find; |
|
} |
|
} |
|
} |
|
continue; |
|
find: |
|
ml = l; |
|
m = p; |
|
lcm = m->lcm; |
|
s = m->sugar; |
|
td = m->td; |
|
len = tlen; |
|
} |
|
if ( !ml ) *prest = NEXT(m); |
|
else { |
|
NEXT(ml) = NEXT(m); |
|
*prest = d; |
|
} |
|
NEXT(m) = 0; |
|
return m; |
|
} |
|
|
|
int nd_newps(ND a) |
|
{ |
|
if ( nd_psn == nd_pslen ) { |
|
nd_pslen *= 2; |
|
nps = (ND *)REALLOC((char *)nps,nd_pslen*sizeof(ND)); |
|
} |
|
nd_monic(a); |
|
nps[nd_psn] = a; |
|
return nd_psn++; |
|
} |
|
|
|
NODE NODE_sortb(NODE f,int); |
|
ND dptond(DP); |
|
DP ndtodp(ND); |
|
|
|
NODE nd_setup(NODE f) |
|
{ |
|
int i; |
|
NODE s,s0,f0; |
|
|
|
#if 0 |
|
f0 = f = NODE_sortb(f,1); |
|
#endif |
|
nd_psn = length(f); nd_pslen = 2*nd_psn; |
|
nps = (ND *)MALLOC(nd_pslen*sizeof(ND)); |
|
nd_bpe = 4; |
|
nd_epw = (sizeof(unsigned int)*8)/nd_bpe; |
|
nd_wpd = nd_nvar/nd_epw+(nd_nvar%nd_epw?1:0); |
|
nd_free_private_storage(); |
|
for ( i = 0; i < nd_psn; i++, f = NEXT(f) ) { |
|
nps[i] = dptond((DP)BDY(f)); |
|
nd_monic(nps[i]); |
|
} |
|
for ( s0 = 0, i = 0; i < nd_psn; i++ ) { |
|
NEXTNODE(s0,s); BDY(s) = (pointer)i; |
|
} |
|
if ( s0 ) NEXT(s) = 0; |
|
return s0; |
|
} |
|
|
|
void nd_gr(LIST f,LIST v,int m,struct order_spec *ord,LIST *rp) |
|
{ |
|
struct order_spec ord1; |
|
VL fv,vv,vc; |
|
NODE fd,fd0,r,r0,t,x,s,xx; |
|
DP a,b,c; |
|
|
|
get_vars((Obj)f,&fv); pltovl(v,&vv); |
|
nd_nvar = length(vv); |
|
if ( ord->id ) |
|
error("nd_gr : unsupported order"); |
|
switch ( ord->ord.simple ) { |
|
case 0: |
|
is_rlex = 1; |
|
break; |
|
case 1: |
|
is_rlex = 0; |
|
break; |
|
default: |
|
error("nd_gr : unsupported order"); |
|
} |
|
initd(ord); |
|
nd_mod = m; |
|
for ( fd0 = 0, t = BDY(f); t; t = NEXT(t) ) { |
|
ptod(CO,vv,(P)BDY(t),&b); |
|
_dp_mod(b,m,0,&c); |
|
if ( c ) { |
|
NEXTNODE(fd0,fd); BDY(fd) = (pointer)c; |
|
} |
|
} |
|
if ( fd0 ) NEXT(fd) = 0; |
|
s = nd_setup(fd0); |
|
x = nd_gb(s); |
|
#if 0 |
|
x = nd_reduceall(x,m); |
|
#endif |
|
for ( r0 = 0; x; x = NEXT(x) ) { |
|
NEXTNODE(r0,r); |
|
a = ndtodp(nps[(int)BDY(x)]); |
|
_dtop_mod(CO,vv,a,(P *)&BDY(r)); |
|
} |
|
if ( r0 ) NEXT(r) = 0; |
|
MKLIST(*rp,r0); |
|
} |
|
|
|
void dltondl(int n,DL dl,unsigned int *r) |
|
{ |
|
unsigned int *d; |
|
int i; |
|
|
|
d = dl->d; |
|
if ( is_rlex ) |
|
for ( i = 0; i < n; i++ ) |
|
r[(n-1-i)/nd_epw] |= (d[i]<<((nd_epw-((n-1-i)%nd_epw)-1)*nd_bpe)); |
|
else |
|
for ( i = 0; i < n; i++ ) |
|
r[i/nd_epw] |= d[i]<<((nd_epw-(i%nd_epw)-1)*nd_bpe); |
|
} |
|
|
|
DL ndltodl(int n,int td,unsigned int *ndl) |
|
{ |
|
DL dl; |
|
int *d; |
|
int i; |
|
|
|
NEWDL(dl,n); |
|
dl->td = td; |
|
d = dl->d; |
|
if ( is_rlex ) |
|
for ( i = 0; i < n; i++ ) |
|
d[i] = (ndl[(n-1-i)/nd_epw]>>((nd_epw-((n-1-i)%nd_epw)-1)*nd_bpe)) |
|
&((1<<nd_bpe)-1); |
|
else |
|
for ( i = 0; i < n; i++ ) |
|
d[i] = (ndl[i/nd_epw]>>((nd_epw-(i%nd_epw)-1)*nd_bpe)) |
|
&((1<<nd_bpe)-1); |
|
return dl; |
|
} |
|
|
|
ND dptond(DP p) |
|
{ |
|
ND d; |
|
NM m0,m; |
|
MP t; |
|
int n; |
|
|
|
if ( !p ) |
|
return 0; |
|
n = NV(p); |
|
m0 = 0; |
|
for ( t = BDY(p); t; t = NEXT(t) ) { |
|
NEXTNM(m0,m); |
|
m->c = ITOS(t->c); |
|
m->td = t->dl->td; |
|
dltondl(n,t->dl,m->dl); |
|
} |
|
NEXT(m) = 0; |
|
MKND(n,m0,d); |
|
d->nv = n; |
|
d->sugar = p->sugar; |
|
return d; |
|
} |
|
|
|
DP ndtodp(ND p) |
|
{ |
|
DP d; |
|
MP m0,m; |
|
NM t; |
|
int n; |
|
|
|
if ( !p ) |
|
return 0; |
|
n = NV(p); |
|
m0 = 0; |
|
for ( t = BDY(p); t; t = NEXT(t) ) { |
|
NEXTMP(m0,m); |
|
m->c = STOI(t->c); |
|
m->dl = ndltodl(n,t->td,t->dl); |
|
} |
|
NEXT(m) = 0; |
|
MKDP(n,m0,d); |
|
d->sugar = p->sugar; |
|
return d; |
|
} |
|
|
|
void ndl_print(unsigned int *dl) |
|
{ |
|
int n; |
|
int i; |
|
|
|
n = nd_nvar; |
|
printf("<<"); |
|
if ( is_rlex ) |
|
for ( i = 0; i < n; i++ ) |
|
printf(i==n-1?"%d":"%d,", |
|
(dl[(n-1-i)/nd_epw]>>((nd_epw-((n-1-i)%nd_epw)-1)*nd_bpe)) |
|
&((1<<nd_bpe)-1)); |
|
else |
|
for ( i = 0; i < n; i++ ) |
|
printf(i==n-1?"%d":"%d,", |
|
(dl[i/nd_epw]>>((nd_epw-(i%nd_epw)-1)*nd_bpe)) |
|
&((1<<nd_bpe)-1)); |
|
printf(">>"); |
|
} |
|
|
|
void nd_print(ND p) |
|
{ |
|
NM m; |
|
|
|
if ( !p ) |
|
printf("0\n"); |
|
else { |
|
for ( m = BDY(p); m; m = NEXT(m) ) { |
|
printf("+%d*",m->c); |
|
ndl_print(m->dl); |
|
} |
|
printf("\n"); |
|
} |
|
} |
|
|
|
void ndp_print(ND_pairs d) |
|
{ |
|
ND_pairs t; |
|
|
|
for ( t = d; t; t = NEXT(t) ) { |
|
printf("%d,%d ",t->i1,t->i2); |
|
} |
|
printf("\n"); |
|
} |
|
|
|
void nd_monic(ND p) |
|
{ |
|
int mul; |
|
NM m; |
|
|
|
if ( !p ) |
|
return; |
|
mul = invm(HC(p),nd_mod); |
|
for ( m = BDY(p); m; m = NEXT(m) ) |
|
C(m) = (C(m)*mul)%nd_mod; |
|
} |
} |