http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56437
--- Comment #4 from Paolo Carlini <paolo.carlini at oracle dot com> 2013-02-25 11:17:30 UTC --- Note that all such changes should be applied to ext/vstring (which will become basic_string in 4.9) not to basic_string. By now the latter is frozen, modulo serious regressions.
