Re: [committed] libstdc++: Add feature test macro for heterogeneous lookup in unordered containers

[Jonathan Wakely via Gcc-patches]

On 04/06/21 16:01 +0100, Jonathan Wakely wrote:

Also update the C++20 status docs.

Signed-off-by: Jonathan Wakely <jwak...@redhat.com>

libstdc++-v3/ChangeLog:

        * doc/xml/manual/status_cxx2020.xml:
        * doc/html/*: Regenerate.
        * include/bits/hashtable.h (__cpp_lib_generic_unordered_lookup):
        Define.
        * include/std/version (__cpp_lib_generic_unordered_lookup):
        Define.
        * testsuite/23_containers/unordered_map/operations/1.cc: Check
        feature test macro.
        * testsuite/23_containers/unordered_set/operations/1.cc:
        Likewise.

Tested powerpc64le-linux. Committed to trunk.

I'll also add a note to the GCC 11 release notes, and I've updated the
compiler support page at cppreference.com

Oh, and this should be backported to gcc-11 too.