mrkn	2011-07-15 20:27:24 +0900 (Fri, 15 Jul 2011)

  New Revision: 32552

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=32552

  Log:
    * bignum.c (bigsub_int): add RB_GC_GUARD.  This patch is made by
      Makoto Kishimoto.  fixes #4223 [ruby-dev:42907]
    
    * bignum.c (bigadd_int): ditto.

  Modified files:
    branches/ruby_1_9_3/ChangeLog
    branches/ruby_1_9_3/bignum.c

Index: ruby_1_9_3/ChangeLog
===================================================================
--- ruby_1_9_3/ChangeLog	(revision 32551)
+++ ruby_1_9_3/ChangeLog	(revision 32552)
@@ -1,3 +1,10 @@
+Fri Jul 15 19:11:00 2011  Kenta Murata  <mrkn@m...>
+
+	* bignum.c (bigsub_int): add RB_GC_GUARD.  This patch is made by
+	  Makoto Kishimoto.  fixes #4223 [ruby-dev:42907]
+
+	* bignum.c (bigadd_int): ditto.
+
 Fri Jul 15 09:59:12 2011  Hiroshi Nakamura  <nahi@r...>
 
 	* backport r32546 from trunk.
Index: ruby_1_9_3/bignum.c
===================================================================
--- ruby_1_9_3/bignum.c	(revision 32551)
+++ ruby_1_9_3/bignum.c	(revision 32552)
@@ -1767,6 +1767,7 @@
     if (xn == 1 && num < 0) {
 	RBIGNUM_SET_SIGN(z, !RBIGNUM_SIGN(x));
 	zds[0] = (BDIGIT)-num;
+	RB_GC_GUARD(x);
 	return bignorm(z);
     }
     zds[0] = BIGLO(num);
@@ -1793,6 +1794,7 @@
     if (num < 0) {
 	z = bigsub(x, rb_int2big(y0));
     }
+    RB_GC_GUARD(x);
     return bignorm(z);
 }
 
@@ -1845,6 +1847,7 @@
     while (i < zn) {
 	zds[i++] = 0;
     }
+    RB_GC_GUARD(x);
     return bignorm(z);
 }
 

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