1 //===----------------------------------------------------------------------===//
2 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
3 // See https://llvm.org/LICENSE.txt for license information.
4 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
5 //
6 //===----------------------------------------------------------------------===//
7 
8 // UNSUPPORTED: c++03, c++11, c++14, c++17
9 // UNSUPPORTED: libcpp-has-no-incomplete-format
10 
11 // <format>
12 
13 // basic_format_arg() noexcept;
14 
15 // The class has several exposition only private constructors. These are tested
16 // in visit_format_arg.pass.cpp
17 
18 #include <format>
19 #include <cassert>
20 
21 #include "test_macros.h"
22 
23 template <class CharT>
test()24 void test() {
25   using Context = std::basic_format_context<CharT*, CharT>;
26 
27   ASSERT_NOEXCEPT(std::basic_format_arg<Context>{});
28 
29   std::basic_format_arg<Context> format_arg{};
30   assert(!format_arg);
31 }
32 
test()33 void test() {
34   test<char>();
35   test<wchar_t>();
36 #ifndef TEST_HAS_NO_CHAR8_T
37   test<char8_t>();
38 #endif
39   test<char16_t>();
40   test<char32_t>();
41 }
42 
main(int,char **)43 int main(int, char**) {
44   test();
45 
46   return 0;
47 }
48