vsnprintf()/vsprintf() does not necessarily return -1 when failed.

diff --git a/taglib/toolkit/tutils.h b/taglib/toolkit/tutils.h
index 36e0afd38436a468c65c937ec8e0352bdc5bfe0b..0655342a31ab173228df488ef3852003a3acbc0f 100644 (file)
--- a/taglib/toolkit/tutils.h
+++ b/taglib/toolkit/tutils.h
@@ -213,10 +213,10 @@ namespace TagLib
 
       va_end(args);
 
-      if(length != -1)
+      if(length > 0)
         return String(buf);
       else
-        return String::null;
+        return String();
     }
 
     /*!