libstdc++: Define _GLIBCXX_USE_BUILTIN_TRAIT
commit286655d04678cb61dee9cac43b139571247c4ad1
authorKen Matsui <kmatsui@gcc.gnu.org>
Tue, 18 Jul 2023 22:24:50 +0000 (18 15:24 -0700)
committerKen Matsui <kmatsui@gcc.gnu.org>
Mon, 11 Sep 2023 15:11:24 +0000 (11 08:11 -0700)
tree97b3993ab85c949a470bacbd4936d539c4de0f74
parentaf91934c2f6b8efc67d625c99068b4761ae5edd0
libstdc++: Define _GLIBCXX_USE_BUILTIN_TRAIT

This patch defines _GLIBCXX_USE_BUILTIN_TRAIT macro, which will be used
as a flag to toggle the use of built-in traits in the type_traits header
through _GLIBCXX_DO_NOT_USE_BUILTIN_TRAITS macro, without needing to modify
the source code.

libstdc++-v3/ChangeLog:

* include/bits/c++config (_GLIBCXX_HAS_BUILTIN): Do not undef.
(_GLIBCXX_USE_BUILTIN_TRAIT): Define.

Signed-off-by: Ken Matsui <kmatsui@gcc.gnu.org>
Reviewed-by: Patrick Palka <ppalka@redhat.com>
Reviewed-by: Jonathan Wakely <jwakely@redhat.com>
libstdc++-v3/include/bits/c++config