[Bug libstdc++/58338] Add noexcept to functions with a narrow contract

[glisse at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58338

--- Comment #11 from Marc Glisse <glisse at gcc dot gnu.org> ---
(In reply to bredelin from comment #10)
> Was this change intentional?

See:
http://gcc.gnu.org/ml/gcc-patches/2013-09/msg01101.html
and Paolo's reply.