[Bug libstdc++/114325] [14 Regression] std::format gives incorrect results for negative numbers

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114325

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

https://gcc.gnu.org/g:f89cfdb2f2e9b4fe517b1e00511c4d70a7014cbc

commit r14-9479-gf89cfdb2f2e9b4fe517b1e00511c4d70a7014cbc
Author: Jonathan Wakely <jwak...@redhat.com>
Date:   Wed Mar 13 21:19:54 2024 +0000

    libstdc++: Fix std::format("{}", negative_integer) [PR114325]

    The fast path for "{}" format strings has a bug for negative integers
    where the length passed to std::to_chars is too long.

    libstdc++-v3/ChangeLog:

            PR libstdc++/114325
            * include/std/format (_Scanner::_M_scan): Pass correct length to
            __to_chars_10_impl.
            * testsuite/std/format/functions/format.cc: Check negative
            integers with empty format-spec.