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Subject: [Bug libstdc++/103549] Uninitialized member warning from regex header
Date: Wed, 05 Jan 2022 22:06:53 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D103549

--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-11 branch has been updated by Jonathan Wakely
<redi@gcc.gnu.org>:

https://gcc.gnu.org/g:5e0ef5621b518caa593b77b7c8f202ee018a0900

commit r11-9437-g5e0ef5621b518caa593b77b7c8f202ee018a0900
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Sat Dec 4 11:38:25 2021 +0000

    libstdc++: Initialize member in std::match_results [PR103549]

    This fixes a -Wuninitialized warning for std::cmatch m1, m2; m1=3Dm2;

    Also name the template parameters in the forward declaration, to get rid
    of the <template-parameter-1-1> noise in diagnostics.

    libstdc++-v3/ChangeLog:

            PR libstdc++/103549
            * include/bits/regex.h (match_results): Give names to template
            parameters in first declaration.
            (match_results::_M_begin): Add default member-initializer.

    (cherry picked from commit 87710ec7b213245ecb194b778e97ae3a6790394f)=