===================================================================
RCS file: /home/cvs/OpenXM_contrib2/asir2000/engine/bf.c,v
retrieving revision 1.8
retrieving revision 1.12
diff -u -p -r1.8 -r1.12
--- OpenXM_contrib2/asir2000/engine/bf.c	2015/08/05 03:46:35	1.8
+++ OpenXM_contrib2/asir2000/engine/bf.c	2015/08/20 08:42:07	1.12
@@ -1,10 +1,12 @@
 /*
- * $OpenXM: OpenXM_contrib2/asir2000/engine/bf.c,v 1.7 2015/08/04 06:20:45 noro Exp $ 
+ * $OpenXM: OpenXM_contrib2/asir2000/engine/bf.c,v 1.11 2015/08/06 23:41:52 noro Exp $ 
  */
 #include "ca.h"
 #include "base.h"
 #include <math.h>
 
+extern int mpfr_roundmode;
+
 Num tobf(Num,int);
 
 #define BFPREC(a) (((BF)(a))->body->_mpfr_prec)
@@ -14,13 +16,13 @@ void strtobf(char *s,BF *p)
   BF r;
   NEWBF(r);
   mpfr_init(r->body);
-  mpfr_set_str(r->body,s,10,MPFR_RNDN);
+  mpfr_set_str(r->body,s,10,mpfr_roundmode);
   *p = r;
 }
 
 double mpfrtodbl(mpfr_t a)
 {
-  return mpfr_get_d(a,MPFR_RNDN);
+  return mpfr_get_d(a,mpfr_roundmode);
 }
 
 Num tobf(Num a,int prec)
@@ -30,6 +32,8 @@ Num tobf(Num a,int prec)
   mpq_t q;
   BF d;
   N nm,dn;
+  C c;
+  Num re,im;
   int sgn;
 
   if ( !a ) {
@@ -44,7 +48,7 @@ Num tobf(Num a,int prec)
       break;
     case N_R:
       prec ? mpfr_init2(r,prec) : mpfr_init(r);
-      mpfr_init_set_d(r,((Real)a)->body,MPFR_RNDN);
+      mpfr_init_set_d(r,((Real)a)->body,mpfr_roundmode);
       MPFRTOBF(r,d);
       return (Num)d;
       break;
@@ -54,17 +58,22 @@ Num tobf(Num a,int prec)
         mpz_init(z);
         mpz_import(z,PL(nm),-1,sizeof(BD(nm)[0]),0,0,BD(nm));
         if ( sgn < 0 ) mpz_neg(z,z);
-        mpfr_init_set_z(r,z,MPFR_RNDN);
+        mpfr_init_set_z(r,z,mpfr_roundmode);
       } else {
         mpq_init(q);
         mpz_import(mpq_numref(q),PL(nm),-1,sizeof(BD(nm)[0]),0,0,BD(nm));
         mpz_import(mpq_denref(q),PL(dn),-1,sizeof(BD(dn)[0]),0,0,BD(dn));
         if ( sgn < 0 ) mpq_neg(q,q);
-        mpfr_init_set_q(r,q,MPFR_RNDN);
+        mpfr_init_set_q(r,q,mpfr_roundmode);
       }
       MPFRTOBF(r,d);
       return (Num)d;
       break;
+    case N_C:
+      re = tobf(((C)a)->r,prec); im = tobf(((C)a)->i,prec);
+      NEWC(c); c->r = re; c->i = im;
+      return (Num)c;
+      break;
     default:
       error("tobf : invalid argument");
       break;
@@ -85,51 +94,52 @@ void addbf(Num a,Num b,Num *c)
     *c = a;
   else if ( (NID(a) <= N_A) && (NID(b) <= N_A ) )
     (*addnumt[MIN(NID(a),NID(b))])(a,b,c);
-  else {
-    if ( NID(a) == N_B ) {
-      switch ( NID(b) ) {
-      case N_Q:
-        mpfr_init2(r,BFPREC(a));
-        if ( INT((Q)b) ) {
-          z = ztogz((Q)b);
-          mpfr_add_z(r,((BF)a)->body,z->body,MPFR_RNDN);
-        } else {
-          q = qtogq((Q)b);
-          mpfr_add_q(r,((BF)a)->body,q->body,MPFR_RNDN);
-        }
-        break;
-      case N_R:
-        /* double precision = 53 */
-        mpfr_init2(r,MIN(BFPREC(a),53));
-        mpfr_add_d(r,((BF)a)->body,((Real)b)->body,MPFR_RNDN);
-        break;
-      case N_B:
-        mpfr_init2(r,MIN(BFPREC(a),BFPREC(b)));
-        mpfr_add(r,((BF)a)->body,((BF)b)->body,MPFR_RNDN);
-        break;
+  else if ( NID(a) == N_B ) {
+    switch ( NID(b) ) {
+    case N_Q:
+      mpfr_init2(r,BFPREC(a));
+      if ( INT((Q)b) ) {
+        z = ztogz((Q)b);
+        mpfr_add_z(r,((BF)a)->body,z->body,mpfr_roundmode);
+      } else {
+        q = qtogq((Q)b);
+        mpfr_add_q(r,((BF)a)->body,q->body,mpfr_roundmode);
       }
-    } else { /* NID(b)==N_B */
-      switch ( NID(a) ) {
-      case N_Q:
-        mpfr_init2(r,BFPREC(b));
-        if ( INT((Q)a) ) {
-          z = ztogz((Q)a);
-          mpfr_add_z(r,((BF)b)->body,z->body,MPFR_RNDN);
-        } else {
-          q = qtogq((Q)a);
-          mpfr_add_q(r,((BF)b)->body,q->body,MPFR_RNDN);
-        }
-        break;
-      case N_R:
-        /* double precision = 53 */
-        mpfr_init2(r,MIN(BFPREC(b),53));
-        mpfr_add_d(r,((BF)b)->body,((Real)a)->body,MPFR_RNDN);
-        break;
+      break;
+    case N_R:
+      /* double precision = 53 */
+      mpfr_init2(r,MAX(BFPREC(a),53));
+      mpfr_add_d(r,((BF)a)->body,((Real)b)->body,mpfr_roundmode);
+      break;
+    case N_B:
+      mpfr_init2(r,MAX(BFPREC(a),BFPREC(b)));
+      mpfr_add(r,((BF)a)->body,((BF)b)->body,mpfr_roundmode);
+      break;
+    }
+    MPFRTOBF(r,d);
+    *c = (Num)d;
+  } else { /* NID(b)==N_B */
+    switch ( NID(a) ) {
+    case N_Q:
+      mpfr_init2(r,BFPREC(b));
+      if ( INT((Q)a) ) {
+        z = ztogz((Q)a);
+        mpfr_add_z(r,((BF)b)->body,z->body,mpfr_roundmode);
+      } else {
+        q = qtogq((Q)a);
+        mpfr_add_q(r,((BF)b)->body,q->body,mpfr_roundmode);
       }
+      break;
+    case N_R:
+      /* double precision = 53 */
+      mpfr_init2(r,MAX(BFPREC(b),53));
+      mpfr_add_d(r,((BF)b)->body,((Real)a)->body,mpfr_roundmode);
+      break;
     }
     MPFRTOBF(r,d);
     *c = (Num)d;
   }
+  if ( !cmpbf(*c,0) ) *c = 0;
 }
 
 void subbf(Num a,Num b,Num *c)
@@ -145,53 +155,53 @@ void subbf(Num a,Num b,Num *c)
     *c = a;
   else if ( (NID(a) <= N_A) && (NID(b) <= N_A ) )
     (*subnumt[MIN(NID(a),NID(b))])(a,b,c);
-  else {
-    if ( NID(a) == N_B ) {
-      switch ( NID(b) ) {
-      case N_Q:
-        mpfr_init2(r,BFPREC(a));
-        if ( INT((Q)b) ) {
-          z = ztogz((Q)b);
-          mpfr_sub_z(r,((BF)a)->body,z->body,MPFR_RNDN);
-        } else {
-          q = qtogq((Q)b);
-          mpfr_sub_q(r,((BF)a)->body,q->body,MPFR_RNDN);
-        }
-        break;
-      case N_R:
-        /* double precision = 53 */
-        mpfr_init2(r,MIN(BFPREC(a),53));
-        mpfr_sub_d(r,((BF)a)->body,((Real)b)->body,MPFR_RNDN);
-        break;
-      case N_B:
-        mpfr_init2(r,MIN(BFPREC(a),BFPREC(b)));
-        mpfr_sub(r,((BF)a)->body,((BF)b)->body,MPFR_RNDN);
-        break;
+  else if ( NID(a) == N_B ) {
+    switch ( NID(b) ) {
+    case N_Q:
+      mpfr_init2(r,BFPREC(a));
+      if ( INT((Q)b) ) {
+        z = ztogz((Q)b);
+        mpfr_sub_z(r,((BF)a)->body,z->body,mpfr_roundmode);
+      } else {
+        q = qtogq((Q)b);
+        mpfr_sub_q(r,((BF)a)->body,q->body,mpfr_roundmode);
       }
-    } else { /* NID(b)==N_B */
-      switch ( NID(a) ) {
-      case N_Q:
-        mpfr_init2(s,BFPREC(b));
-        mpfr_init2(r,BFPREC(b));
-        if ( INT((Q)a) ) {
-          z = ztogz((Q)a);
-          mpfr_sub_z(s,((BF)b)->body,z->body,MPFR_RNDN);
-        } else {
-          q = qtogq((Q)a);
-          mpfr_sub_q(s,((BF)b)->body,q->body,MPFR_RNDN);
-        }
-        mpfr_neg(r,s,MPFR_RNDN);
-        break;
-      case N_R:
-        /* double precision = 53 */
-        mpfr_init2(r,MIN(BFPREC(b),53));
-        mpfr_d_sub(r,((Real)a)->body,((BF)b)->body,MPFR_RNDN);
-        break;
+      break;
+    case N_R:
+      /* double precision = 53 */
+      mpfr_init2(r,MAX(BFPREC(a),53));
+      mpfr_sub_d(r,((BF)a)->body,((Real)b)->body,mpfr_roundmode);
+      break;
+    case N_B:
+      mpfr_init2(r,MAX(BFPREC(a),BFPREC(b)));
+      mpfr_sub(r,((BF)a)->body,((BF)b)->body,mpfr_roundmode);
+      break;
+    }
+    MPFRTOBF(r,d);
+    *c = (Num)d;
+  } else { /* NID(b)==N_B */
+    switch ( NID(a) ) {
+    case N_Q:
+      mpfr_init2(r,BFPREC(b));
+      if ( INT((Q)a) ) {
+        z = ztogz((Q)a);
+        mpfr_sub_z(r,((BF)b)->body,z->body,mpfr_roundmode);
+      } else {
+        q = qtogq((Q)a);
+        mpfr_sub_q(r,((BF)b)->body,q->body,mpfr_roundmode);
       }
+      mpfr_neg(r,r,mpfr_roundmode);
+      break;
+    case N_R:
+      /* double precision = 53 */
+      mpfr_init2(r,MAX(BFPREC(b),53));
+      mpfr_d_sub(r,((Real)a)->body,((BF)b)->body,mpfr_roundmode);
+      break;
     }
     MPFRTOBF(r,d);
     *c = (Num)d;
   }
+  if ( !cmpbf(*c,0) ) *c = 0;
 }
 
 void mulbf(Num a,Num b,Num *c)
@@ -206,51 +216,52 @@ void mulbf(Num a,Num b,Num *c)
     *c = 0;
   else if ( (NID(a) <= N_A) && (NID(b) <= N_A ) )
     (*mulnumt[MIN(NID(a),NID(b))])(a,b,c);
-  else {
-    if ( NID(a) == N_B ) {
-      switch ( NID(b) ) {
-      case N_Q:
-        mpfr_init2(r,BFPREC(a));
-        if ( INT((Q)b) ) {
-          z = ztogz((Q)b);
-          mpfr_mul_z(r,((BF)a)->body,z->body,MPFR_RNDN);
-        } else {
-          q = qtogq((Q)b);
-          mpfr_mul_q(r,((BF)a)->body,q->body,MPFR_RNDN);
-        }
-        break;
-      case N_R:
-        /* double precision = 53 */
-        mpfr_init2(r,MIN(BFPREC(a),53));
-        mpfr_mul_d(r,((BF)a)->body,((Real)b)->body,MPFR_RNDN);
-        break;
-      case N_B:
-        mpfr_init2(r,MIN(BFPREC(a),BFPREC(b)));
-        mpfr_mul(r,((BF)a)->body,((BF)b)->body,MPFR_RNDN);
-        break;
+  else if ( NID(a) == N_B ) {
+    switch ( NID(b) ) {
+    case N_Q:
+      mpfr_init2(r,BFPREC(a));
+      if ( INT((Q)b) ) {
+        z = ztogz((Q)b);
+        mpfr_mul_z(r,((BF)a)->body,z->body,mpfr_roundmode);
+      } else {
+        q = qtogq((Q)b);
+        mpfr_mul_q(r,((BF)a)->body,q->body,mpfr_roundmode);
       }
-    } else { /* NID(b)==N_B */
-      switch ( NID(a) ) {
-      case N_Q:
-        mpfr_init2(r,BFPREC(b));
-        if ( INT((Q)a) ) {
-          z = ztogz((Q)a);
-          mpfr_mul_z(r,((BF)b)->body,z->body,MPFR_RNDN);
-        } else {
-          q = qtogq((Q)a);
-          mpfr_mul_q(r,((BF)b)->body,q->body,MPFR_RNDN);
-        }
-        break;
-      case N_R:
-        /* double precision = 53 */
-        mpfr_init2(r,MIN(BFPREC(b),53));
-        mpfr_mul_d(r,((BF)b)->body,((Real)a)->body,MPFR_RNDN);
-        break;
+      break;
+    case N_R:
+      /* double precision = 53 */
+      mpfr_init2(r,MAX(BFPREC(a),53));
+      mpfr_mul_d(r,((BF)a)->body,((Real)b)->body,mpfr_roundmode);
+      break;
+    case N_B:
+      mpfr_init2(r,MAX(BFPREC(a),BFPREC(b)));
+      mpfr_mul(r,((BF)a)->body,((BF)b)->body,mpfr_roundmode);
+      break;
+    }
+    MPFRTOBF(r,d);
+    *c = (Num)d;
+  } else { /* NID(b)==N_B */
+    switch ( NID(a) ) {
+    case N_Q:
+      mpfr_init2(r,BFPREC(b));
+      if ( INT((Q)a) ) {
+        z = ztogz((Q)a);
+        mpfr_mul_z(r,((BF)b)->body,z->body,mpfr_roundmode);
+      } else {
+        q = qtogq((Q)a);
+        mpfr_mul_q(r,((BF)b)->body,q->body,mpfr_roundmode);
       }
+      break;
+    case N_R:
+      /* double precision = 53 */
+      mpfr_init2(r,MAX(BFPREC(b),53));
+      mpfr_mul_d(r,((BF)b)->body,((Real)a)->body,mpfr_roundmode);
+      break;
     }
     MPFRTOBF(r,d);
     *c = (Num)d;
   }
+  if ( !cmpbf(*c,0) ) *c = 0;
 }
 
 void divbf(Num a,Num b,Num *c)
@@ -266,47 +277,48 @@ void divbf(Num a,Num b,Num *c)
     *c = 0;
   else if ( (NID(a) <= N_A) && (NID(b) <= N_A ) )
     (*divnumt[MIN(NID(a),NID(b))])(a,b,c);
-  else {
-    if ( NID(a) == N_B ) {
-      switch ( NID(b) ) {
-      case N_Q:
-        mpfr_init2(r,BFPREC(a));
-        if ( INT((Q)b) ) {
-          z = ztogz((Q)b);
-          mpfr_div_z(r,((BF)a)->body,z->body,MPFR_RNDN);
-        } else {
-          q = qtogq((Q)b);
-          mpfr_div_q(r,((BF)a)->body,q->body,MPFR_RNDN);
-        }
-        break;
-      case N_R:
-        /* double precision = 53 */
-        mpfr_init2(r,MIN(BFPREC(a),53));
-        mpfr_div_d(r,((BF)a)->body,((Real)b)->body,MPFR_RNDN);
-        break;
-      case N_B:
-        mpfr_init2(r,MIN(BFPREC(a),BFPREC(b)));
-        mpfr_div(r,((BF)a)->body,((BF)b)->body,MPFR_RNDN);
-        break;
+  else if ( NID(a) == N_B ) {
+    switch ( NID(b) ) {
+    case N_Q:
+      mpfr_init2(r,BFPREC(a));
+      if ( INT((Q)b) ) {
+        z = ztogz((Q)b);
+        mpfr_div_z(r,((BF)a)->body,z->body,mpfr_roundmode);
+      } else {
+        q = qtogq((Q)b);
+        mpfr_div_q(r,((BF)a)->body,q->body,mpfr_roundmode);
       }
-    } else { /* NID(b)==N_B */
-      switch ( NID(a) ) {
-      case N_Q:
-        /* XXX : mpfr_z_div and mpfr_q_div are not implemented */
-        a = tobf(a,BFPREC(b));
-        mpfr_init2(r,BFPREC(b));
-        mpfr_div(r,((BF)a)->body,((BF)b)->body,MPFR_RNDN);
-        break;
-      case N_R:
-        /* double precision = 53 */
-        mpfr_init2(r,MIN(BFPREC(b),53));
-        mpfr_d_div(r,((Real)a)->body,((BF)b)->body,MPFR_RNDN);
-        break;
-      }
+      break;
+    case N_R:
+      /* double precision = 53 */
+      mpfr_init2(r,MAX(BFPREC(a),53));
+      mpfr_div_d(r,((BF)a)->body,((Real)b)->body,mpfr_roundmode);
+      break;
+    case N_B:
+      mpfr_init2(r,MAX(BFPREC(a),BFPREC(b)));
+      mpfr_div(r,((BF)a)->body,((BF)b)->body,mpfr_roundmode);
+      break;
     }
     MPFRTOBF(r,d);
     *c = (Num)d;
+  } else { /* NID(b)==N_B */
+    switch ( NID(a) ) {
+    case N_Q:
+      /* XXX : mpfr_z_div and mpfr_q_div are not implemented */
+      a = tobf(a,BFPREC(b));
+      mpfr_init2(r,BFPREC(b));
+      mpfr_div(r,((BF)a)->body,((BF)b)->body,mpfr_roundmode);
+      break;
+    case N_R:
+      /* double precision = 53 */
+      mpfr_init2(r,MAX(BFPREC(b),53));
+      mpfr_d_div(r,((Real)a)->body,((BF)b)->body,mpfr_roundmode);
+      break;
+    }
+    MPFRTOBF(r,d);
+    *c = (Num)d;
   }
+  if ( !cmpbf(*c,0) ) *c = 0;
 }
 
 void pwrbf(Num a,Num b,Num *c)
@@ -322,50 +334,51 @@ void pwrbf(Num a,Num b,Num *c)
     *c = 0;
   else if ( (NID(a) <= N_A) && (NID(b) <= N_A ) )
     (*pwrnumt[MIN(NID(a),NID(b))])(a,b,c);
-  else {
-    if ( NID(a) == N_B ) {
-      switch ( NID(b) ) {
-      case N_Q:
-        mpfr_init2(r,BFPREC(a));
-        if ( INT((Q)b) ) {
-          z = ztogz((Q)b);
-          mpfr_pow_z(r,((BF)a)->body,z->body,MPFR_RNDN);
-        } else {
-          b = tobf(b,BFPREC(a));
-          mpfr_pow(r,((BF)a)->body,((BF)b)->body,MPFR_RNDN);
-        }
-        break;
-      case N_R:
-        /* double precision = 53 */
-        prec = MIN(BFPREC(a),53);
-        mpfr_init2(r,prec);
-        b = tobf(b,prec);
-        mpfr_pow(r,((BF)a)->body,((BF)b)->body,MPFR_RNDN);
-        break;
-      case N_B:
-        mpfr_init2(r,MIN(BFPREC(a),BFPREC(b)));
-        mpfr_pow(r,((BF)a)->body,((BF)b)->body,MPFR_RNDN);
-        break;
+  else if ( NID(a) == N_B ) {
+    switch ( NID(b) ) {
+    case N_Q:
+      mpfr_init2(r,BFPREC(a));
+      if ( INT((Q)b) ) {
+        z = ztogz((Q)b);
+        mpfr_pow_z(r,((BF)a)->body,z->body,mpfr_roundmode);
+      } else {
+        b = tobf(b,BFPREC(a));
+        mpfr_pow(r,((BF)a)->body,((BF)b)->body,mpfr_roundmode);
       }
-    } else { /* NID(b)==N_B */
-      switch ( NID(a) ) {
-      case N_Q:
-        mpfr_init2(r,BFPREC(b));
-        a = tobf(a,BFPREC(b));
-        mpfr_pow(r,((BF)a)->body,((BF)b)->body,MPFR_RNDN);
-        break;
-      case N_R:
-        /* double precision = 53 */
-        prec = MIN(BFPREC(a),53);
-        mpfr_init2(r,prec);
-        a = tobf(a,prec);
-        mpfr_pow(r,((BF)a)->body,((BF)b)->body,MPFR_RNDN);
-        break;
-      }
+      break;
+    case N_R:
+      /* double precision = 53 */
+      prec = MAX(BFPREC(a),53);
+      mpfr_init2(r,prec);
+      b = tobf(b,prec);
+      mpfr_pow(r,((BF)a)->body,((BF)b)->body,mpfr_roundmode);
+      break;
+    case N_B:
+      mpfr_init2(r,MAX(BFPREC(a),BFPREC(b)));
+      mpfr_pow(r,((BF)a)->body,((BF)b)->body,mpfr_roundmode);
+      break;
     }
     MPFRTOBF(r,d);
     *c = (Num)d;
+  } else { /* NID(b)==N_B */
+    switch ( NID(a) ) {
+    case N_Q:
+      mpfr_init2(r,BFPREC(b));
+      a = tobf(a,BFPREC(b));
+      mpfr_pow(r,((BF)a)->body,((BF)b)->body,mpfr_roundmode);
+      break;
+    case N_R:
+      /* double precision = 53 */
+      prec = MAX(BFPREC(a),53);
+      mpfr_init2(r,prec);
+      a = tobf(a,prec);
+      mpfr_pow(r,((BF)a)->body,((BF)b)->body,mpfr_roundmode);
+      break;
+    }
+    MPFRTOBF(r,d);
+    *c = (Num)d;
   }
+  if ( !cmpbf(*c,0) ) *c = 0;
 }
 
 void chsgnbf(Num a,Num *c)
@@ -379,7 +392,7 @@ void chsgnbf(Num a,Num *c)
     (*chsgnnumt[NID(a)])(a,c);
   else {
     mpfr_init2(r,BFPREC(a));
-    mpfr_neg(r,((BF)a)->body,MPFR_RNDN);
+    mpfr_neg(r,((BF)a)->body,mpfr_roundmode);
     MPFRTOBF(r,d);
     *c = (Num)d;
   }
@@ -387,8 +400,13 @@ void chsgnbf(Num a,Num *c)
 
 int cmpbf(Num a,Num b)
 {
+  int ret;
+  GZ z;
+  GQ q;
+
   if ( !a ) {
-    if ( !b || (NID(b)<=N_A) )
+    if ( !b ) return 0;
+    else if ((NID(b)<=N_A) )
       return (*cmpnumt[NID(b)])(a,b);
     else
       return -mpfr_sgn(((BF)a)->body);
@@ -397,9 +415,42 @@ int cmpbf(Num a,Num b)
       return (*cmpnumt[NID(a)])(a,b);
     else
       return mpfr_sgn(((BF)a)->body);
-  } else {
-    if ( NID(a) != N_B ) a = tobf(a,0);
-    if ( NID(b) != N_B ) b = tobf(b,0);
-    return mpfr_cmp(((BF)a)->body,((BF)b)->body);
+  } else if ( NID(a) == N_B ) {
+    switch ( NID(b) ) {
+    case N_Q:
+      if ( INT((Q)b) ) {
+        z = ztogz((Q)b);
+        ret = mpfr_cmp_z(((BF)a)->body,z->body);
+      } else {
+        q = qtogq((Q)b);
+        ret = mpfr_cmp_q(((BF)a)->body,q->body);
+      }
+      break;
+    case N_R:
+      /* double precision = 53 */
+      ret = mpfr_cmp_d(((BF)a)->body,((Real)b)->body);
+      break;
+    case N_B:
+      ret = mpfr_cmp(((BF)a)->body,((BF)b)->body);
+      break;
+    }
+    return ret;
+  } else { /* NID(b)==N_B */
+    switch ( NID(a) ) {
+    case N_Q:
+      if ( INT((Q)a) ) {
+        z = ztogz((Q)a);
+        ret = mpfr_cmp_z(((BF)b)->body,z->body);
+      } else {
+        q = qtogq((Q)a);
+        ret = mpfr_cmp_q(((BF)b)->body,q->body);
+      }
+      break;
+    case N_R:
+      /* double precision = 53 */
+      ret = mpfr_cmp_d(((BF)b)->body,((Real)a)->body);
+      break;
+    }
+    return -ret;
   }
 }