Hi, indeed, the problem is not present in gcc3.0.2 and current 3.1 snapshots. In general, bug reports should be submitted via GNATS ( http://gcc.gnu.org/cgi-bin/gnatsweb.pl ) and, as far as libstdc++ bugs are concerned, remember that the old v2 (bundled with 2.95.x) is not maintained anymore. Cheers, Paolo Carlini.