[Patch, libstdc++/64584, libstdc++/64585] Clear basic_regex after imbue and make assign exception tolerant

[Tim Shen]

On Sat, Jan 17, 2015 at 4:06 PM, Tim Shen <timshen@google.com> wrote:
> I'm not 100% sure of that, but isn't moving a pointer the same as copying?

I mean time cost here. By the way, is the rhs pointer still valid or
in an unspecified state?


-- 
Regards,
Tim Shen