http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52719
--- Comment #4 from Roger Leigh <rleigh at debian dot org> 2012-03-26 08:37:10 UTC --- I left the priority as "normal", but if this is generally reproducible, and not a failure on my part, it would mean that std::regex is quite unusable in its current form. Thanks, Roger