[v3 PATCH] PR libstdc++/66338

[Jonathan Wakely]

On 24/05/16 19:49 +0300, Ville Voutilainen wrote:
>On 24 May 2016 at 19:35, Ville Voutilainen <ville.voutilainen@gmail.com> wrote:
>> Slight tweak. The avoidance of _NotSameTuple wasn't quite correct for
>> the templates that
>> take const tuple<_UElements...>& or  tuple<_UElements...>&& instead of
>> const _UElements&...
>> or _UElements&&...
>>
>> This patch introduces a new helper alias to cover those cases and
>> takes it into use where appropriate.
>> All tests pass, but I don't have any sane tests to verify this tweak.
>
>
>..and I don't need to be quite so round-about in the new helper, it
>can just check !is_same
>instead of doing a nested _TC call. Changelog the same as in the previous one.

OK for trunk - thanks.