[Patch, libstdc++/64649] Fix regex_traits::lookup_collatename and regex_traits::lookup_classname

[Jonathan Wakely]

On 23/01/15 13:20 -0800, Tim Shen wrote:
>On Wed, Jan 21, 2015 at 9:10 PM, Tim Shen <timshen@google.com> wrote:
>> Submitted version.
>
>I think this patch fits 4.9 branch well?

I don't think this needs to go on the 4.9 branch, apparently I'm the
only person who's noticed the problem. I expect it's quite rare to try
using those functions with forward iterators.