[patch] Fix two libstdc++ test failures with -std=gnu++14

[Jonathan Wakely]

On 16/06/15 22:18 +0200, François Dumont wrote:
>On 12/06/2015 01:22, Jonathan Wakely wrote:
>> This fixes two test failures when the default compiler mode is
>> -std=gnu++14
>>
>> FAIL: 25_algorithms/headers/algorithm/synopsis.cc (test for excess
>> errors)
>> FAIL: ext/profile/mutex_extensions_neg.cc (test for excess errors)
>>
>> I don't really like the change to the synopsis.cc test, but I don't
>> think reproducing the SFINAE constraints in the test is ideal either.
>>
>> The mutex_extensions_neg.cc test works now, but I think we're missing
>> specializations of __is_tuple_like_impl for __gnu_debug::array and
>> __gnu_profile::array.
>>
>> Tested powerpc64le-linux, committed to trunk.
>>
>This patch introduced a regression in
>20_util/tuple/creation_functions/tuple_cat.cc in debug mode.

Yes, I noticed this today while testing some changes to <debug/list>,
but hadn't had time to do anything about it, so thanks for taking care
of it.

>Attached is a proposal to fix it properly. I am using <utility> as a
>pivot header between <tuple> and <array>. This way <tuple> do not need
>to include <array> anymore.

I think that's a good improvement.

>It also adds missing version namespace macro in debug and profile headers.
>
>Not tested yet as I would like to know first if it ok to do it this way.

Looks good to me.