* numeric.c (fix_pow): returns 1.0 for 0**0.0.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@13786 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

2 files changed, 5 insertions, 4 deletions

diff --git a/ChangeLog b/ChangeLog
index 73109910cd..2853138979 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,4 +1,6 @@
-Fri Oct 26 17:01:34 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Fri Oct 26 17:14:14 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* numeric.c (fix_pow): returns 1.0 for 0**0.0.
 
 	* numeric.c (fix_pow): returns infinity for 0**-1.  [ruby-dev:32084]
 
diff --git a/numeric.c b/numeric.c
index fca31531bd..643a2cae80 100644
--- a/numeric.c
+++ b/numeric.c
@@ -2247,12 +2247,10 @@ fix_pow(x, y)
     long a = FIX2LONG(x);
 
     if (FIXNUM_P(y)) {
-	long b;
+	long b = FIX2LONG(y);
 
-	b = FIX2LONG(y);
 	if (b == 0) return INT2FIX(1);
 	if (b == 1) return x;
-	a = FIX2LONG(x);
 	if (a == 0) {
 	    if (b > 0) return INT2FIX(0);
 	    return rb_float_new(1.0 / zero);
@@ -2280,6 +2278,7 @@ fix_pow(x, y)
 	x = rb_int2big(FIX2LONG(x));
 	return rb_big_pow(x, y);
       case T_FLOAT:
+	if (RFLOAT(y)->value == 0.0) return rb_float_new(1.0);
 	if (a == 0) {
 	    return rb_float_new(RFLOAT(y)->value < 0 ? (1.0 / zero) : 0.0);
 	}