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

[Tim Shen]

On Sat, Apr 11, 2015 at 9:10 PM, Daniel Krügler wrote:
> 24.2.2 [iterator.iterators] requires them to be CopyConstructible and
> CopyAssignable, these imply the two more reduced requirements.

Ah I see, sorry for bothering.


-- 
Regards,
Tim Shen