[committed] libstdc++: Add deduction guide for std::ranges::join_view [LWG 3474]

[Jonathan Wakely]

On 06/10/20 00:05 -0500, Tim Song via Libstdc++ wrote:
>I thought LWG approved the other option in the PR (changing views::join to
>not use CTAD)?

Oops, good point. Fixed like so.

Tested powerpc64le-linux, pushed.


>On Mon, Aug 24, 2020 at 10:22 AM Jonathan Wakely via Gcc-patches <
>gcc-patches@gcc.gnu.org> wrote:
>
>> This implements the proposed resolution for LWG 3474.
>>
>> libstdc++-v3/ChangeLog:
>>
>>         * include/std/ranges (join_view): Add deduction guide (LWG 3474).
>>         * testsuite/std/ranges/adaptors/join_lwg3474.cc: New test.
>>
>> Tested powerpc64le-linux. Committed to trunk.
>>
>>
>
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