[Bug libstdc++/90239] [C++20] scoped_allocator_adaptor should support nested pair

Thu, 25 Apr 2019 15:44:21 -0700 

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90239

--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Thu Apr 25 22:43:15 2019
New Revision: 270588

URL: https://gcc.gnu.org/viewcvs?rev=270588&root=gcc&view=rev
Log:
PR libstdc++/90239 use uses_allocator_construction_args in <scoped_allocator>

        PR libstdc++/90239
        * doc/xml/manual/status_cxx2020.xml: Amend P0591R4 status.
        * include/std/scoped_allocator [__cplusplus > 201703L]
        (scoped_allocator_adaptor::construct): Define in terms of
        uses_allocator_construction_args, as per P0591R4.
        * testsuite/20_util/scoped_allocator/construct_pair_c++2a.cc: New test.
        * testsuite/util/testsuite_allocator.h: Remove name of unused
        parameter.

Added:
   
trunk/libstdc++-v3/testsuite/20_util/scoped_allocator/construct_pair_c++2a.cc
Modified:
    trunk/libstdc++-v3/ChangeLog
    trunk/libstdc++-v3/doc/xml/manual/status_cxx2020.xml
    trunk/libstdc++-v3/include/std/scoped_allocator
    trunk/libstdc++-v3/testsuite/util/testsuite_allocator.h

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