* bignum.c (bignorm): fixed a bug in normalizing negative numbers

  reported from Honda Hiroki <hhonda@ipflex.com>.  normalizing
  should not trim preceding zeros from negative numbers.

* ext/socket/socket.c (ruby_getaddrinfo__aix): merged a patch from
  KUBO Takehiro <kubo@jiubao.org> to support AIX.  [ruby-list:40832]

* lib/yaml/rubytypes.rb (Array::to_yaml): merged a patch from
  Tilman Sauerbeck <tilman@code-monkey.de>.  [ruby-core:05055]

* lib/yaml/rubytypes.rb (Hash::to_yaml): ditto.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@8589 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 8 insertions, 2 deletions

diff --git a/bignum.c b/bignum.c
index 6a31b5adc1..e534150073 100644
--- a/bignum.c
+++ b/bignum.c
@@ -105,9 +105,15 @@ bignorm(x)
 	BDIGIT *ds = BDIGITS(x);
 
 	while (len-- && !ds[len]) ;
-	RBIGNUM(x)->len = ++len;
+	len++;
+	if (RBIGNUM(x)->sign) {
+	    RBIGNUM(x)->len = len;
+	}
+	else if (len == 0) {
+	    return x;
+	}
 
-	if (len*SIZEOF_BDIGITS <= sizeof(VALUE)) {
+	if (RBIGNUM(x)->len*SIZEOF_BDIGITS <= sizeof(VALUE)) {
 	    long num = 0;
 	    while (len--) {
 		num = BIGUP(num) + ds[len];