Re: [PATCH] Add std::is_constant_evaluated wrapper around __builtin_is_constant_evaluated

[Jonathan Wakely]

On 11/12/18 17:35 +0100, Jakub Jelinek wrote:

Hi!

The following patch adds std::is_constant_evaluated to the library.

Bootstrapped/regtested on x86_64-linux and i686-linux, ok for trunk?
(relies on the previously posted C++ FE patch).

2018-12-11  Jakub Jelinek  <ja...@redhat.com>

        P0595R2 - is_constant_evaluated
        * include/bits/c++config (_GLIBCXX_HAVE_BUILTIN_IS_CONSTANT_EVALUATED):
        Define if __builtin_is_constant_evaluated is available.
        * include/std/type_traits (std::is_constant_evaluated): New constexpr
        inline function.
        * testsuite/20_util/is_constant_evaluated/1.cc: New test.
        * testsuite/20_util/is_constant_evaluated/noexcept.cc: New test.

OK, thanks.