1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 // UNSUPPORTED: c++03
10
11 // <type_traits>
12
13
14 #include <type_traits>
15 #include <cassert>
16
17 #include "test_macros.h"
18
main(int,char **)19 int main(int, char**)
20 {
21 #ifndef __cpp_lib_is_constant_evaluated
22 // expected-error@+1 {{no member named 'is_constant_evaluated' in namespace 'std'}}
23 bool b = std::is_constant_evaluated();
24 #else
25 // expected-error-re@+1 {{{{(static_assert|static assertion)}} failed}}
26 static_assert(!std::is_constant_evaluated(), "");
27 // expected-warning@-1 0-1 {{'std::is_constant_evaluated' will always evaluate to 'true' in a manifestly constant-evaluated expression}}
28 #endif
29 return 0;
30 }
31