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Diff for /OpenXM_contrib2/asir2000/engine/num.c between version 1.1 and 1.7

version 1.1, 1999/12/03 07:39:08 version 1.7, 2018/03/29 01:32:52
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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 1.6 2001/10/09 01:36:13 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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