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 // constexpr end() const noexcept;
14 
15 #include <format>
16 
17 #include <cassert>
18 #include <string_view>
19 
20 #include "test_macros.h"
21 
22 template <class CharT>
test(const CharT * fmt)23 constexpr void test(const CharT* fmt) {
24   {
25     std::basic_format_parse_context<CharT> context(fmt);
26     assert(std::to_address(context.end()) == &fmt[3]);
27     ASSERT_NOEXCEPT(context.end());
28   }
29   {
30     std::basic_string_view view{fmt};
31     std::basic_format_parse_context context(view);
32     assert(context.end() == view.end());
33     ASSERT_NOEXCEPT(context.end());
34   }
35 }
36 
test()37 constexpr bool test() {
38   test("abc");
39   test(L"abc");
40 #ifndef TEST_HAS_NO_CHAR8_T
41   test(u8"abc");
42 #endif
43   test(u"abc");
44   test(U"abc");
45 
46   return true;
47 }
48 
main(int,char **)49 int main(int, char**) {
50   test();
51   static_assert(test());
52 
53   return 0;
54 }
55