[Bug libstdc++/78552] std::locale::classic() Needless Race

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78552

--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Wed Oct  9 12:55:39 2019
New Revision: 276758

URL: https://gcc.gnu.org/viewcvs?rev=276758&root=gcc&view=rev
Log:
PR libstdc++/78552 only construct std::locale for C locale once

        PR libstdc++/78552
        * src/c++98/locale_init.cc (locale::classic()): Do not construct a new
        locale object for every call.
        (locale::_S_initialize_once()): Construct C locale here.

Modified:
    trunk/libstdc++-v3/ChangeLog
    trunk/libstdc++-v3/src/c++98/locale_init.cc