* complex.c (float_arg): returns PI for -0.0.

git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@23960 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 3 insertions, 1 deletions

diff --git a/complex.c b/complex.c
index 048aa92bf..d64c62812 100644
--- a/complex.c
+++ b/complex.c
@@ -1756,7 +1756,9 @@ float_arg(VALUE self)
 {
     if (isnan(RFLOAT_VALUE(self)))
 	return self;
-    return rb_call_super(0, 0);
+    if (f_tpositive_p(self))
+	return INT2FIX(0);
+    return rb_const_get(rb_mMath, id_PI);
 }
 
 /*