* ext/stringio/stringio.c (strio_truncate): should MEMZERO an extended

part.  [ruby-dev:25618]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@7866 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,8 @@
+Wed Feb  2 23:52:53 2005  sheepman  <sheepman@tcn.zaq.ne.jp>
+
+	* ext/stringio/stringio.c (strio_truncate): should MEMZERO an extended
+	  part.  [ruby-dev:25618]
+
 Wed Feb  2 21:56:01 2005  Kouhei Sutou  <kou@cozmixng.org>
 
 	* lib/rss/rss.rb (RSS::Element#convert): added.
@@ -5,11 +10,11 @@ Wed Feb  2 21:56:01 2005  Kouhei Sutou  <kou@cozmixng.org>
 	* lib/rss/rss.rb: convert -> need_convert.
 
 	* lib/rss/1.0.rb: ditto.
-	
+
 	* lib/rss/0.9.rb: ditto.
-	
+
 	* lib/rss/2.0.rb: ditto.
-	
+
 	* lib/rss/trackback.rb: ditto.
 
 Wed Feb  2 03:30:58 2005  Minero Aoki  <aamine@loveruby.net>

ext/stringio/stringio.c

@@ -934,10 +934,14 @@ strio_truncate(self, len)
 {
     VALUE string = writable(StringIO(self))->string;
     long l = NUM2LONG(len);
+    long plen = RSTRING(string)->len;
     if (l < 0) {
 	error_inval("negative legnth");
     }
     rb_str_resize(string, l);
+    if (plen < l) {
+	MEMZERO(RSTRING(string)->ptr + plen, char, l - plen);
+    }
     return len;
 }