===================================================================
RCS file: /home/cvs/OpenXM_contrib2/asir2000/engine/num.c,v
retrieving revision 1.2
retrieving revision 1.7
diff -u -p -r1.2 -r1.7
--- OpenXM_contrib2/asir2000/engine/num.c	2000/08/21 08:31:28	1.2
+++ OpenXM_contrib2/asir2000/engine/num.c	2018/03/29 01:32:52	1.7
@@ -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 1.6 2001/10/09 01:36:13 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);
+  (*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);
+  (*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);
+  (*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);
+  (*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);
+  (*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);
+  (*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);
+  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");
+  }
 }