* file.c (ruby_find_basename): should initialize f.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@28563 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,7 @@
+Wed Jul  7 12:00:24 2010  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* file.c (ruby_find_basename): should initialize f.
+
 Wed Jul  7 11:44:01 2010  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* ext/zlib/zlib.c (gzfile_raise): add invalid header to

file.c

@@ -3436,7 +3436,7 @@ ruby_find_basename(const char *name, long *len, long *ext)
 #if defined DOSISH_DRIVE_LETTER || defined DOSISH_UNC
     const char *root;
 #endif
-    long f, n = -1;
+    long f = 0, n = -1;
 
     name = skipprefix(name);
 #if defined DOSISH_DRIVE_LETTER || defined DOSISH_UNC