blob: 99d7f8bcd6b971670ce5d13043d67f2b593cd977 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
|
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#ifndef cm_utility_hxx
#define cm_utility_hxx
#include "cmConfigure.h" // IWYU pragma: keep
#if __cplusplus >= 201703L || (defined(_MSVC_LANG) && _MSVC_LANG >= 201703L)
# define CMake_HAVE_CXX_IN_PLACE
#endif
#if defined(CMake_HAVE_CXX_IN_PLACE)
# include <utility>
#endif
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
}
#endif
|