http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49107
Paolo Carlini <paolo.carlini at oracle dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |paolo.carlini at oracle dot | |com --- Comment #2 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-05-22 11:50:57 UTC --- The path is from the noexcept is pair::swap to the noexcept in std::swap. Both are completely straightforward implementation of the FDIS. Thus, either something in std::is_constructible or the C++ front-end.