===================================================================
RCS file: /home/cvs/OpenXM_contrib2/asir2000/builtin/parif.c,v
retrieving revision 1.2
retrieving revision 1.6
diff -u -p -r1.2 -r1.6
--- OpenXM_contrib2/asir2000/builtin/parif.c	2000/02/08 04:47:09	1.2
+++ OpenXM_contrib2/asir2000/builtin/parif.c	2000/12/05 01:24:51	1.6
@@ -1,4 +1,52 @@
-/* $OpenXM: OpenXM_contrib2/asir2000/builtin/parif.c,v 1.1.1.1 1999/12/03 07:39:07 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/builtin/parif.c,v 1.5 2000/11/15 00:07:20 noro Exp $ 
+*/
 #include "ca.h"
 #include "parse.h"
 
@@ -7,19 +55,13 @@
 
 extern long prec;
 
-#if defined(THINK_C)
 void patori(GEN,Obj *);
 void patori_i(GEN,N *);
 void ritopa(Obj,GEN *);
 void ritopa_i(N,int,GEN *);
-#else
-void patori();
-void patori_i();
-void ritopa();
-void ritopa_i();
-#endif
 
 void Peval(),Psetprec(),p_pi(),p_e(),p_mul(),p_gcd();
+void asir_cgiv(GEN);
 
 struct ftab pari_tab[] = {
 	{"eval",Peval,-2}, {"setprec",Psetprec,-1}, {0,0,0},
@@ -28,9 +70,9 @@ struct ftab pari_tab[] = {
 #define MKPREC(a,i,b) (argc(a)==(i)?mkprec(QTOS((Q)(b))):prec)
 
 #define CALLPARI1(f,a,p,r)\
-ritopa((Obj)a,&_pt1_); _pt2_ = f(_pt1_,p); patori(_pt2_,r); cgiv(_pt2_); cgiv(_pt1_)
+ritopa((Obj)a,&_pt1_); _pt2_ = f(_pt1_,p); patori(_pt2_,r); asir_cgiv(_pt2_); asir_cgiv(_pt1_)
 #define CALLPARI2(f,a,b,p,r)\
-ritopa((Obj)a,&_pt1_); ritopa((Obj)b,&_pt2_); _pt3_ = f(_pt1_,_pt2_,p); patori(_pt3_,r); cgiv(_pt3_); cgiv(_pt2_); cgiv(_pt1_)
+ritopa((Obj)a,&_pt1_); ritopa((Obj)b,&_pt2_); _pt3_ = f(_pt1_,_pt2_,p); patori(_pt3_,r); asir_cgiv(_pt3_); asir_cgiv(_pt2_); asir_cgiv(_pt1_)
 
 #define PARIF1P(f,pf)\
 void f(NODE,Obj *);\
@@ -48,6 +90,17 @@ void f(ar,rp) NODE ar; Obj *rp;\
 #define PREC_CONV		0.051905126
 #endif
 
+/* XXX : we should be more careful when we free PARI pointers. */
+
+void asir_cgiv(ptr)
+GEN ptr;
+{
+	if ( ptr != gzero && ptr != gun
+	&& ptr != gdeux && ptr != ghalf
+	&& ptr != polvar && ptr != gi )
+		cgiv(ptr);
+}
+
 mkprec(p)
 int p;
 {
@@ -84,7 +137,7 @@ Obj *rp;
 	GEN x;
 
 	x = mppi(MKPREC(arg,1,ARG0(arg)));
-	patori(x,rp); cgiv(x);
+	patori(x,rp); asir_cgiv(x);
 }
 
 void p_e(arg,rp)
@@ -93,7 +146,7 @@ Obj *rp;
 {
 	GEN x;
 
-	x = gexp(gun,MKPREC(arg,1,ARG0(arg))); patori(x,rp); cgiv(x);
+	x = gexp(gun,MKPREC(arg,1,ARG0(arg))); patori(x,rp); asir_cgiv(x);
 }
 
 void p_mul(a,b,r)
@@ -103,7 +156,7 @@ Obj a,b,*r;
 
 	ritopa((Obj)a,&p1); ritopa((Obj)b,&p2);
 	p3 = mulii(p1,p2);
-	patori(p3,r); cgiv(p3); cgiv(p2); cgiv(p1);
+	patori(p3,r); asir_cgiv(p3); asir_cgiv(p2); asir_cgiv(p1);
 }
 
 void p_gcd(a,b,r)
@@ -113,7 +166,7 @@ N a,b,*r;
 
 	ritopa_i(a,1,&p1); ritopa_i(b,1,&p2);
 	p3 = mppgcd(p1,p2);
-	patori_i(p3,r); cgiv(p3); cgiv(p2); cgiv(p1);
+	patori_i(p3,r); asir_cgiv(p3); asir_cgiv(p2); asir_cgiv(p1);
 }
 
 PARIF1P(p_sin,gsin) PARIF1P(p_cos,gcos) PARIF1P(p_tan,gtan)