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From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug libstdc++/111055] [C++23] Implement P1206R7, Conversions from
 ranges to containers
Date: Thu, 23 Nov 2023 17:51:11 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D111055

--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jonathan Wakely <redi@gcc.gnu.org>:

https://gcc.gnu.org/g:7a6a29c455e7755b501c0006e39beb4e56ec2729

commit r14-5794-g7a6a29c455e7755b501c0006e39beb4e56ec2729
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Tue Sep 19 13:23:13 2023 +0100

    libstdc++: Define std::ranges::to for C++23 (P1206R7) [PR111055]

    This adds the std::ranges::to functions for C++23. The rest of P1206R7
    is not yet implemented, i.e. the new constructors taking the
    std::from_range tag, and the new insert_range, assign_range, etc. member
    functions. std::ranges::to works with the standard containers even
    without the new constructors, so this is useful immediately.

    The __cpp_lib_ranges_to_container feature test macro can be defined now,
    because that only indicates support for the changes in <ranges>, which
    are implemented by this patch. The __cpp_lib_containers_ranges macro
    will be defined once all containers support the new member functions.

    libstdc++-v3/ChangeLog:

            PR libstdc++/111055
            * include/bits/ranges_base.h (from_range_t): Define new tag
            type.
            (from_range): Define new tag object.
            * include/bits/version.def (ranges_to_container): Define.
            * include/bits/version.h: Regenerate.
            * include/std/ranges (ranges::to): Define.
            * testsuite/std/ranges/conv/1.cc: New test.
            * testsuite/std/ranges/conv/2_neg.cc: New test.
            * testsuite/std/ranges/conv/version.cc: New test.=