* numeric.c (int_pow): even number multiplication never be negative.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@12697 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

3 files changed, 8 insertions, 4 deletions

diff --git a/ChangeLog b/ChangeLog
index 8dc5aafb61..bdab52522e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Thu Jul  5 15:56:06 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* numeric.c (int_pow): even number multiplication never be negative.
+
 Mon Jul  2 14:34:43 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* sprintf.c (rb_f_sprintf): sign bit extension should not be done
diff --git a/numeric.c b/numeric.c
index 6734c836f1..7402f1527c 100644
--- a/numeric.c
+++ b/numeric.c
@@ -2209,7 +2209,7 @@ int_pow(x, y)
 	    z = xz;
 	}
     } while (--y);
-    if (neg) z = -z;
+    if (neg && (y & 1)) z = -z;
     return LONG2NUM(z);
 }
 
diff --git a/version.h b/version.h
index 25b3f30588..0446b3765e 100644
--- a/version.h
+++ b/version.h
@@ -1,7 +1,7 @@
 #define RUBY_VERSION "1.8.6"
-#define RUBY_RELEASE_DATE "2007-07-02"
+#define RUBY_RELEASE_DATE "2007-07-05"
 #define RUBY_VERSION_CODE 186
-#define RUBY_RELEASE_CODE 20070702
+#define RUBY_RELEASE_CODE 20070705
 #define RUBY_PATCHLEVEL 5000
 
 #define RUBY_VERSION_MAJOR 1
@@ -9,7 +9,7 @@
 #define RUBY_VERSION_TEENY 6
 #define RUBY_RELEASE_YEAR 2007
 #define RUBY_RELEASE_MONTH 7
-#define RUBY_RELEASE_DAY 2
+#define RUBY_RELEASE_DAY 5
 
 #ifdef RUBY_EXTERN
 RUBY_EXTERN const char ruby_version[];