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
|
// { dg-do compile { target c++17 } }
// { dg-add-options no_pch }
#include <version>
#ifndef __cpp_lib_variant
#error "Feature test macro for variant is missing in <version>"
#elif __cplusplus == 201703L && __cpp_lib_variant != 202102L
# error "Feature test macro for variant has wrong value for C++17 in <version>"
#elif __cplusplus >= 202002L && __cpp_lib_variant < 202106L
# error "Feature test macro for variant has wrong value for C++20 in <version>"
#endif
#if __cplusplus >= 202302L
#ifndef __cpp_lib_freestanding_variant
# error "Feature test macro for freestanding std::variant is missing in <version>"
#elif __cpp_lib_freestanding_variant < 202311L
# error "Feature test macro for freestanding std::variant has wrong value in <version>"
#endif
#endif
#undef __cpp_lib_variant
#undef __cpp_lib_freestanding_variant
#include <variant>
#if __cplusplus >= 202302L
#ifndef __cpp_lib_freestanding_variant
# error "Feature test macro for freestanding std::variant is missing in <variant>"
#elif __cpp_lib_freestanding_variant < 202311L
# error "Feature test macro for freestanding std::variant has wrong value in <variant>"
#endif
#endif
|
