* bignum.c (rb_big_neg): SIGNED_VALUE isn't in 1.8.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8_6@13172 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

3 files changed, 10 insertions, 2 deletions

diff --git a/ChangeLog b/ChangeLog
index 32803df727..96573b6b82 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+Wed Aug 22 10:07:48 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* bignum.c (rb_big_neg): SIGNED_VALUE isn't in 1.8.
+
+	* bignum.c (bigtrunc): do not empty Bignum.  [ruby-dev:31229]
+
 Wed Aug 22 10:02:42 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
 	* numeric.c (fix_pow): 0**2 should not raise floating point
diff --git a/bignum.c b/bignum.c
index 0beecd4a75..7fb48f5efe 100644
--- a/bignum.c
+++ b/bignum.c
@@ -74,6 +74,7 @@ get2comp(x)
     BDIGIT *ds = BDIGITS(x);
     BDIGIT_DBL num;
 
+    if (!i) return;
     while (i--) ds[i] = ~ds[i];
     i = 0; num = 1;
     do {
@@ -102,7 +103,7 @@ bigtrunc(x)
     long len = RBIGNUM(x)->len;
     BDIGIT *ds = BDIGITS(x);
 
-    while (len-- && !ds[len]);
+    while (--len && !ds[len]);
     RBIGNUM(x)->len = ++len;
     return x;
 }
@@ -1086,6 +1087,7 @@ rb_big_neg(x)
     if (!RBIGNUM(x)->sign) get2comp(z);
     ds = BDIGITS(z);
     i = RBIGNUM(x)->len;
+    if (!i) return INT2FIX(~0);
     while (i--) ds[i] = ~ds[i];
     RBIGNUM(z)->sign = !RBIGNUM(z)->sign;
     if (RBIGNUM(x)->sign) get2comp(z);
diff --git a/version.h b/version.h
index 56e41b8834..216e96587a 100644
--- a/version.h
+++ b/version.h
@@ -2,7 +2,7 @@
 #define RUBY_RELEASE_DATE "2007-08-22"
 #define RUBY_VERSION_CODE 186
 #define RUBY_RELEASE_CODE 20070822
-#define RUBY_PATCHLEVEL 60
+#define RUBY_PATCHLEVEL 63
 
 #define RUBY_VERSION_MAJOR 1
 #define RUBY_VERSION_MINOR 8