Use C99-defined macros to classify a floating-point number

1 files changed, 1 insertions, 9 deletions

diff --git a/numeric.c b/numeric.c
index f04cf61b0d..755051de2a 100644
--- a/numeric.c
+++ b/numeric.c
@@ -1699,15 +1699,7 @@ rb_flo_is_finite_p(VALUE num)
 {
     double value = RFLOAT_VALUE(num);
 
-#ifdef HAVE_ISFINITE
-    if (!isfinite(value))
-	return Qfalse;
-#else
-    if (isinf(value) || isnan(value))
-	return Qfalse;
-#endif
-
-    return Qtrue;
+    return RBOOL(isfinite(value));
 }
 
 static VALUE