xref: /llvm-project/libcxx/test/std/utilities/expected/expected.bad/what.pass.cpp (revision 6a54dfbfe534276d644d7f9c027f0deeb748dd53)
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, c++11, c++14, c++17, c++20
10 
11 // const char* what() const noexcept override;
12 
13 #include <expected>
14 #include <cassert>
15 #include <utility>
16 
17 #include "test_macros.h"
18 
19 struct Foo {};
20 
21 int main(int, char**) {
22   {
23     std::bad_expected_access<int> const exc(99);
24     char const* what = exc.what();
25     assert(what != nullptr);
26     ASSERT_NOEXCEPT(exc.what());
27   }
28   {
29     std::bad_expected_access<Foo> const exc(Foo{});
30     char const* what = exc.what();
31     assert(what != nullptr);
32     ASSERT_NOEXCEPT(exc.what());
33   }
34 
35   return 0;
36 }
37