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Diff for /OpenXM_contrib2/asir2000/engine/num.c between version 1.1 and 1.6

version 1.1, 1999/12/03 07:39:08 version 1.6, 2001/10/09 01:36:13
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 /* $OpenXM: OpenXM/src/asir99/engine/num.c,v 1.1.1.1 1999/11/10 08:12:26 noro Exp $ */  /*
    * Copyright (c) 1994-2000 FUJITSU LABORATORIES LIMITED
    * All rights reserved.
    *
    * FUJITSU LABORATORIES LIMITED ("FLL") hereby grants you a limited,
    * non-exclusive and royalty-free license to use, copy, modify and
    * redistribute, solely for non-commercial and non-profit purposes, the
    * computer program, "Risa/Asir" ("SOFTWARE"), subject to the terms and
    * conditions of this Agreement. For the avoidance of doubt, you acquire
    * only a limited right to use the SOFTWARE hereunder, and FLL or any
    * third party developer retains all rights, including but not limited to
    * copyrights, in and to the SOFTWARE.
    *
    * (1) FLL does not grant you a license in any way for commercial
    * purposes. You may use the SOFTWARE only for non-commercial and
    * non-profit purposes only, such as academic, research and internal
    * business use.
    * (2) The SOFTWARE is protected by the Copyright Law of Japan and
    * international copyright treaties. If you make copies of the SOFTWARE,
    * with or without modification, as permitted hereunder, you shall affix
    * to all such copies of the SOFTWARE the above copyright notice.
    * (3) An explicit reference to this SOFTWARE and its copyright owner
    * shall be made on your publication or presentation in any form of the
    * results obtained by use of the SOFTWARE.
    * (4) In the event that you modify the SOFTWARE, you shall notify FLL by
    * e-mail at risa-admin@sec.flab.fujitsu.co.jp of the detailed specification
    * for such modification or the source code of the modified part of the
    * SOFTWARE.
    *
    * THE SOFTWARE IS PROVIDED AS IS WITHOUT ANY WARRANTY OF ANY KIND. FLL
    * MAKES ABSOLUTELY NO WARRANTIES, EXPRESSED, IMPLIED OR STATUTORY, AND
    * EXPRESSLY DISCLAIMS ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS
    * FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT OF THIRD PARTIES'
    * RIGHTS. NO FLL DEALER, AGENT, EMPLOYEES IS AUTHORIZED TO MAKE ANY
    * MODIFICATIONS, EXTENSIONS, OR ADDITIONS TO THIS WARRANTY.
    * UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL THEORY, TORT, CONTRACT,
    * OR OTHERWISE, SHALL FLL BE LIABLE TO YOU OR ANY OTHER PERSON FOR ANY
    * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, PUNITIVE OR CONSEQUENTIAL
    * DAMAGES OF ANY CHARACTER, INCLUDING, WITHOUT LIMITATION, DAMAGES
    * ARISING OUT OF OR RELATING TO THE SOFTWARE OR THIS AGREEMENT, DAMAGES
    * FOR LOSS OF GOODWILL, WORK STOPPAGE, OR LOSS OF DATA, OR FOR ANY
    * DAMAGES, EVEN IF FLL SHALL HAVE BEEN INFORMED OF THE POSSIBILITY OF
    * SUCH DAMAGES, OR FOR ANY CLAIM BY ANY OTHER PARTY. EVEN IF A PART
    * OF THE SOFTWARE HAS BEEN DEVELOPED BY A THIRD PARTY, THE THIRD PARTY
    * DEVELOPER SHALL HAVE NO LIABILITY IN CONNECTION WITH THE USE,
    * PERFORMANCE OR NON-PERFORMANCE OF THE SOFTWARE.
    *
    * $OpenXM: OpenXM_contrib2/asir2000/engine/num.c,v 1.5 2001/09/05 09:01:27 noro Exp $
   */
 #include "ca.h"  #include "ca.h"
   
 void addnum(vl,a,b,c)  void addnum(VL vl,Num a,Num b,Num *c)
 VL vl;  
 Num a,b,*c;  
 {  {
         (*addnumt[MAX(a?NID(a):0,b?NID(b):0)])(a,b,c);          (*addnumt[MAX(a?NID(a):0,b?NID(b):0)])(a,b,c);
 }  }
   
 void subnum(vl,a,b,c)  void subnum(VL vl,Num a,Num b,Num *c)
 VL vl;  
 Num a,b,*c;  
 {  {
         (*subnumt[MAX(a?NID(a):0,b?NID(b):0)])(a,b,c);          (*subnumt[MAX(a?NID(a):0,b?NID(b):0)])(a,b,c);
 }  }
   
 void mulnum(vl,a,b,c)  void mulnum(VL vl,Num a,Num b,Num *c)
 VL vl;  
 Num a,b,*c;  
 {  {
         (*mulnumt[MAX(a?NID(a):0,b?NID(b):0)])(a,b,c);          (*mulnumt[MAX(a?NID(a):0,b?NID(b):0)])(a,b,c);
 }  }
   
 void divnum(vl,a,b,c)  void divnum(VL vl,Num a,Num b,Num *c)
 VL vl;  
 Num a,b,*c;  
 {  {
         (*divnumt[MAX(a?NID(a):0,b?NID(b):0)])(a,b,c);          (*divnumt[MAX(a?NID(a):0,b?NID(b):0)])(a,b,c);
 }  }
   
 void pwrnum(vl,a,b,c)  void pwrnum(VL vl,Num a,Num b,Num *c)
 VL vl;  
 Num a,b,*c;  
 {  {
         (*pwrnumt[MAX(a?NID(a):0,b?NID(b):0)])(a,b,c);          (*pwrnumt[MAX(a?NID(a):0,b?NID(b):0)])(a,b,c);
 }  }
   
 void chsgnnum(a,c)  void chsgnnum(Num a,Num *c)
 Num a,*c;  
 {  {
         (*chsgnnumt[a?NID(a):0])(a,c);          (*chsgnnumt[a?NID(a):0])(a,c);
 }  }
   
 int compnum(vl,a,b)  int compnum(VL vl,Num a,Num b)
 VL vl;  
 Num a,b;  
 {  {
         return (*cmpnumt[MAX(a?NID(a):0,b?NID(b):0)])(a,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");
           }
 }  }
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