cmake/Utilities/std/cm/utility
2021-09-14 00:13:48 +02:00

32 lines
566 B
C++

// -*-c++-*-
// vim: set ft=cpp:
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#pragma once
#if __cplusplus >= 201703L || (defined(_MSVC_LANG) && _MSVC_LANG >= 201703L)
# define CMake_HAVE_CXX_IN_PLACE
#endif
#include <utility> // IWYU pragma: export
namespace cm {
#if defined(CMake_HAVE_CXX_IN_PLACE)
using std::in_place_t;
using std::in_place;
#else
struct in_place_t
{
explicit in_place_t() = default;
};
constexpr in_place_t in_place{};
#endif
}