yugui	2009-06-20 18:07:57 +0900 (Sat, 20 Jun 2009)

  New Revision: 23765

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=23765

  Log:
    merges r23609 from trunk into ruby_1_9_1.
    --
    * ext/bigdecimal/bigdecimal.c (BigDecimal_to_f): returns Inf if
      exp is bigger than DBL_MANT_DIG.

  Modified files:
    branches/ruby_1_9_1/ChangeLog
    branches/ruby_1_9_1/ext/bigdecimal/bigdecimal.c
    branches/ruby_1_9_1/version.h

Index: ruby_1_9_1/ChangeLog
===================================================================
--- ruby_1_9_1/ChangeLog	(revision 23764)
+++ ruby_1_9_1/ChangeLog	(revision 23765)
@@ -1,3 +1,8 @@
+Mon Jun  1 07:20:02 2009  Yukihiro Matsumoto  <matz@r...>
+
+	* ext/bigdecimal/bigdecimal.c (BigDecimal_to_f): returns Inf if
+	  exp is bigger than DBL_MANT_DIG.
+
 Sun May 31 23:26:36 2009  Nobuyoshi Nakada  <nobu@r...>
 
 	* file.c (istrailinggarbage): fixed typo.
Index: ruby_1_9_1/ext/bigdecimal/bigdecimal.c
===================================================================
--- ruby_1_9_1/ext/bigdecimal/bigdecimal.c	(revision 23764)
+++ ruby_1_9_1/ext/bigdecimal/bigdecimal.c	(revision 23765)
@@ -604,16 +604,18 @@
     volatile VALUE str;
 
     GUARD_OBJ(p,GetVpValue(self,1));
-    if(VpVtoD(&d, &e, p)!=1) return rb_float_new(d);
+    if (VpVtoD(&d, &e, p)!=1) return rb_float_new(d);
+    if (e > DBL_MAX_10_EXP) goto erange;
     str = rb_str_new(0, VpNumOfChars(p,"E"));
     buf = RSTRING_PTR(str);
     VpToString(p, buf, 0, 0);
     errno = 0;
     d = strtod(buf, 0);
     if(errno == ERANGE) {
+      erange:
        VpException(VP_EXCEPTION_OVERFLOW,"BigDecimal to Float conversion",0);
-       if(d>0.0) return rb_float_new(DBL_MAX);
-       else      return rb_float_new(-DBL_MAX);
+       if(d>0.0) d = VpGetDoublePosInf();
+       else      d = VpGetDoubleNegInf();
     }
     return rb_float_new(d);
 }
Index: ruby_1_9_1/version.h
===================================================================
--- ruby_1_9_1/version.h	(revision 23764)
+++ ruby_1_9_1/version.h	(revision 23765)
@@ -1,6 +1,6 @@
 #define RUBY_VERSION "1.9.1"
 #define RUBY_RELEASE_DATE "2009-05-22"
-#define RUBY_PATCHLEVEL 163
+#define RUBY_PATCHLEVEL 164
 #define RUBY_VERSION_MAJOR 1
 #define RUBY_VERSION_MINOR 9
 #define RUBY_VERSION_TEENY 1

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