[Bug libstdc++/110970] clang / c++23 missing 'typename' prior to dependent type name 'iterator_traits<_It>::iterator_category'

[cvs-commit at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110970

--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-13 branch has been updated by Jonathan Wakely
<r...@gcc.gnu.org>:

https://gcc.gnu.org/g:2e094543715fbd1a5486d77dcbfeec52d86aba61

commit r13-7710-g2e094543715fbd1a5486d77dcbfeec52d86aba61
Author: Jonathan Wakely <jwak...@redhat.com>
Date:   Thu Aug 10 13:48:48 2023 +0100

    libstdc++: Use alias template for iterator_category [PR110970]

    This renames __iterator_category_t to __iter_category_t, for consistency
    with std::iter_value_t, std::iter_difference_t and std::iter_reference_t
    in C++20. Then use __iter_category_t in <bits/stl_iterator.h>, which
    fixes the problem of the missing 'typename' that Clang 15 incorrectly
    still requires.

    libstdc++-v3/ChangeLog:

            PR libstdc++/110970
            * include/bits/stl_iterator.h (__detail::__move_iter_cat): Use
            __iter_category_t.
            (iterator_traits<common_iterator<I, S>>::_S_iter_cat): Likewise.
            (__detail::__basic_const_iterator_iter_cat): Likewise.
            * include/bits/stl_iterator_base_types.h (__iterator_category_t):
            Rename to __iter_category_t.

    (cherry picked from commit 9cb2a7c8d54b1f6685bc509a07104c458262cb9f)