[Patch, libstdc++/68863] Let lookahead regex use captured contents

[Jonathan Wakely]

On 14/12/15 09:58 -0800, Tim Shen wrote:
>On Mon, Dec 14, 2015 at 3:00 AM, Jonathan Wakely <jwakely@redhat.com> wrote:
>> I don't fully understand the patch, but it's OK for trunk, and if
>> you're confident it's definitely correct and safe it's OK for the
>> gcc-5 and gcc-4_9 branches too.
>>
>> Was it just completely wrong before, creating a vector of
>> default-constructed match results, that were not matched?
>>
>
>Yes, that's the case. I'm not sure why I missed this. Perhaps all I
>was focusing on is to get the captures in the lookahead sub-expression
>out of it, so later user can use it; but I didn't think about the
>other way around.

OK then I do understand it and it's definitely OK to commit :-)

Thanks.