=================================================================== RCS file: /home/cvs/OpenXM_contrib2/asir2000/engine/num.c,v retrieving revision 1.2 retrieving revision 1.6 diff -u -p -r1.2 -r1.6 --- OpenXM_contrib2/asir2000/engine/num.c 2000/08/21 08:31:28 1.2 +++ OpenXM_contrib2/asir2000/engine/num.c 2001/10/09 01:36:13 1.6 @@ -23,7 +23,7 @@ * 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@flab.fujitsu.co.jp of the detailed specification + * 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. * @@ -45,54 +45,181 @@ * DEVELOPER SHALL HAVE NO LIABILITY IN CONNECTION WITH THE USE, * PERFORMANCE OR NON-PERFORMANCE OF THE SOFTWARE. * - * $OpenXM: OpenXM_contrib2/asir2000/engine/num.c,v 1.1.1.1 1999/12/03 07:39:08 noro Exp $ + * $OpenXM: OpenXM_contrib2/asir2000/engine/num.c,v 1.5 2001/09/05 09:01:27 noro Exp $ */ #include "ca.h" -void addnum(vl,a,b,c) -VL vl; -Num a,b,*c; +void addnum(VL vl,Num a,Num b,Num *c) { (*addnumt[MAX(a?NID(a):0,b?NID(b):0)])(a,b,c); } -void subnum(vl,a,b,c) -VL vl; -Num a,b,*c; +void subnum(VL vl,Num a,Num b,Num *c) { (*subnumt[MAX(a?NID(a):0,b?NID(b):0)])(a,b,c); } -void mulnum(vl,a,b,c) -VL vl; -Num a,b,*c; +void mulnum(VL vl,Num a,Num b,Num *c) { (*mulnumt[MAX(a?NID(a):0,b?NID(b):0)])(a,b,c); } -void divnum(vl,a,b,c) -VL vl; -Num a,b,*c; +void divnum(VL vl,Num a,Num b,Num *c) { (*divnumt[MAX(a?NID(a):0,b?NID(b):0)])(a,b,c); } -void pwrnum(vl,a,b,c) -VL vl; -Num a,b,*c; +void pwrnum(VL vl,Num a,Num b,Num *c) { (*pwrnumt[MAX(a?NID(a):0,b?NID(b):0)])(a,b,c); } -void chsgnnum(a,c) -Num a,*c; +void chsgnnum(Num a,Num *c) { (*chsgnnumt[a?NID(a):0])(a,c); } -int compnum(vl,a,b) -VL vl; -Num a,b; +int compnum(VL vl,Num a,Num b) { return (*cmpnumt[MAX(a?NID(a):0,b?NID(b):0)])(a,b); +} + +extern int current_ff; + +void one_ff(Num *c) +{ + LM lm; + GFS fs; + GFSN fspn; + + switch ( current_ff ) { + case FF_GFP: + case FF_GFPN: + MKLM(ONEN,lm); + *c = (Num)lm; + break; + case FF_GFS: + mqtogfs(ONEM,&fs); + *c = (Num)fs; + break; + case FF_GFSN: + ntogfsn((Obj)ONE,&fspn); + *c = (Num)fspn; + break; + default: + error("one_ff : not implemented yet"); + } +} + +int negative_number(Num c) +{ + if ( !c ) + return 0; + else { + switch ( NID(c) ) { + case N_Q: + return SGN((Q)c)<0; + case N_R: + return BDY((Real)c)<0; + case N_B: + return 0; /* XXX */ + default: + return 0; + } + } +} + +/* general simplifier for finite field elements */ +/* XXX : we don't have appropriate file */ + +void simp_ff(Obj p,Obj *rp) +{ + LM s; + DCP dc,dcr0,dcr; + GF2N rg,sg; + GFPN rpn,spn; + GFS rs; + GFSN rspn,sspn; + P t; + Obj obj; + + lm_lazy = 0; + if ( !p ) + *rp = 0; + else if ( OID(p) == O_N ) { + switch ( current_ff ) { + case FF_GFP: + ptolmp((P)p,&t); simplm((LM)t,&s); *rp = (Obj)s; + break; + case FF_GF2N: + ptogf2n((Obj)p,&rg); simpgf2n((GF2N)rg,&sg); *rp = (Obj)sg; + break; + case FF_GFPN: + ntogfpn((Obj)p,&rpn); simpgfpn((GFPN)rpn,&spn); *rp = (Obj)spn; + break; + case FF_GFS: + if ( NID((Num)p) == N_GFS ) + *rp = p; + else { + ptomp(current_gfs_p,(P)p,&t); mqtogfs((MQ)t,&rs); + *rp = (Obj)rs; + } + break; + case FF_GFSN: + ntogfsn((Obj)p,&rspn); simpgfsn((GFSN)rspn,&sspn); + *rp = (Obj)sspn; + break; + default: + *rp = (Obj)p; + break; + } + } else if ( OID(p) == O_P ) { + for ( dc = DC((P)p), dcr0 = 0; dc; dc = NEXT(dc) ) { + simp_ff((Obj)COEF(dc),&obj); + if ( obj ) { + NEXTDC(dcr0,dcr); DEG(dcr) = DEG(dc); COEF(dcr) = (P)obj; + } + } + if ( !dcr0 ) + *rp = 0; + else { + NEXT(dcr) = 0; MKP(VR((P)p),dcr0,t); *rp = (Obj)t; + } + } else + error("simp_ff : not implemented yet"); +} + + +void field_order_ff(N *order) +{ + UP2 up2; + UP up; + UM dp; + N m; + int d,w; + + switch ( current_ff ) { + case FF_GFP: + getmod_lm(order); break; + case FF_GF2N: + getmod_gf2n(&up2); d = degup2(up2); + w = (d>>5)+1; + *order = m = NALLOC(w); + PL(m)=w; + bzero((char *)BD(m),w*sizeof(unsigned int)); + BD(m)[d>>5] |= 1<<(d&31); + break; + case FF_GFPN: + getmod_lm(&m); + getmod_gfpn(&up); pwrn(m,up->d,order); + break; + case FF_GFS: + STON(current_gfs_q,*order); break; + case FF_GFSN: + STON(current_gfs_q,m); + getmod_gfsn(&dp); pwrn(m,DEG(dp),order); + break; + default: + error("field_order_ff : current_ff is not set"); + } }