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, c++23
10
11// <format>
12
13// template<class charT, class... Args>
14// class basic_format_string<charT, type_identity_t<Args>...>
15//
16// basic_format_string(runtime-format-string<charT> s) noexcept : str(s.str) {}
17//
18// Additional testing is done in
19// - libcxx/test/std/utilities/format/format.functions/format.runtime_format.pass.cpp
20// - libcxx/test/std/utilities/format/format.functions/format.locale.runtime_format.pass.cpp
21
22#include <format>
23#include <cassert>
24
25#include "test_macros.h"
26
27int main(int, char**) {
28 static_assert(noexcept(std::format_string<>{std::runtime_format(std::string_view{})}));
29 {
30 std::format_string<> s = std::runtime_format("}{invalid format string}{");
31 assert(s.get() == "}{invalid format string}{");
32 }
33
34#ifndef TEST_HAS_NO_WIDE_CHARACTERS
35 static_assert(noexcept(std::wformat_string<>{std::runtime_format(std::wstring_view{})}));
36 {
37 std::wformat_string<> s = std::runtime_format(L"}{invalid format string}{");
38 assert(s.get() == L"}{invalid format string}{");
39 }
40#endif // TEST_HAS_NO_WIDE_CHARACTERS
41
42 return 0;
43}
44

source code of libcxx/test/std/utilities/format/format.fmt.string/ctor.runtime-format-string.pass.cpp