merge revision(s) 44505: [Backport #9994]

	numeric.c: isfinite

	* numeric.c (flo_is_finite_p): prefer C99 standard isfinite() than
  deprecated finite().

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_0_0@46732 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 10 insertions, 2 deletions

diff --git a/numeric.c b/numeric.c
index 2c15e2fbe9..e3a1a8c458 100644
--- a/numeric.c
+++ b/numeric.c
@@ -30,6 +30,14 @@
 #include <ieeefp.h>
 #endif
 
+#if !defined HAVE_ISFINITE && !defined isfinite
+#if defined HAVE_FINITE && !defined finite && !defined _WIN32
+extern int finite(double);
+# define HAVE_ISFINITE 1
+# define isfinite(x) finite(x)
+#endif
+#endif
+
 /* use IEEE 64bit values if not defined */
 #ifndef FLT_RADIX
 #define FLT_RADIX 2
@@ -1482,8 +1490,8 @@ flo_is_finite_p(VALUE num)
 {
     double value = RFLOAT_VALUE(num);
 
-#if HAVE_FINITE
-    if (!finite(value))
+#if HAVE_ISFINITE
+    if (!isfinite(value))
 	return Qfalse;
 #else
     if (isinf(value) || isnan(value))