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Subject: [Bug libstdc++/108221] Building cross compiler for H8 family fails
 at libstdc++-v3/src/c++20/tzdb.cc
Date: Tue, 10 Jan 2023 10:10:10 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D108221

--- Comment #16 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:769fae76dfd71045fe062e7b1edef0f59e50371d

commit r13-5080-g769fae76dfd71045fe062e7b1edef0f59e50371d
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Mon Jan 9 10:45:31 2023 +0000

    libstdc++: Fix some algos for 16-bit size_t [PR108221]

    Some standard algorithms fail to compile when size_t or ptrdiff_t is
    narrower than int. The __lg helper function is ambiguous if ptrdiff_t is
    short or __int20, so replace it with a function template that works for
    those types as well as signed/unsigned int/long/long long. The helpers
    for stable_sort perform arithmetic on size values and assume the types
    won't change, which isn't true if the type promotes to int.

    libstdc++-v3/ChangeLog:

            PR libstdc++/108221
            * include/bits/stl_algobase.h (__lg): Replace six overloads with
            a single function template for all integer types.
            * include/bits/stl_algo.h (__merge_adaptive_resize): Cast
            arithmetic results back to _Distance.=