[Bug libstdc++/119246] Result basic_format_arg::check_dynamic_spec is incorrect for extended floating point types

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119246

--- Comment #5 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Tomasz Kaminski <tkami...@gcc.gnu.org>:

https://gcc.gnu.org/g:d010a39b9e788a1b3c58e0954c1b2c6afad8210a

commit r16-647-gd010a39b9e788a1b3c58e0954c1b2c6afad8210a
Author: Tomasz KamiÅski <tkami...@redhat.com>
Date:   Thu May 15 08:58:09 2025 +0200

    libstdc++: Fix preprocessor check for __float128 formatter [PR119246]

    The previous check `_GLIBCXX_FORMAT_F128 != 1` was passing if
    _GLIBCXX_FORMAT_F128 was not defined, i.e. evaluted to zero.

    This broke sparc-sun-solaris2.11 and x86_64-darwin.

            PR libstdc++/119246

    libstdc++-v3/ChangeLog:

            * include/std/format: Updated check for _GLIBCXX_FORMAT_F128.