| //===----------------------------------------------------------------------===// |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // UNSUPPORTED: c++03, c++11, c++14, c++17 |
| // UNSUPPORTED: libcpp-no-concepts |
| // UNSUPPORTED: libcpp-has-no-localization |
| // UNSUPPORTED: libcpp-has-no-incomplete-format |
| // TODO FMT Evaluate gcc-11 status |
| // UNSUPPORTED: gcc-11 |
| |
| // <format> |
| |
| // template<class... Args> |
| // string format(const locale& loc, string_view fmt, const Args&... args); |
| // template<class... Args> |
| // wstring format(const locale& loc, wstring_view fmt, const Args&... args); |
| |
| #include <format> |
| #include <cassert> |
| #include <iostream> |
| #include <vector> |
| |
| #include "test_macros.h" |
| #include "format_tests.h" |
| |
| auto test = []<class CharT, class... Args>(std::basic_string<CharT> expected, |
| std::basic_string<CharT> fmt, |
| const Args&... args) { |
| std::basic_string<CharT> out = std::format(std::locale(), fmt, args...); |
| if constexpr (std::same_as<CharT, char>) |
| if (out != expected) |
| std::cerr << "\nFormat string " << fmt << "\nExpected output " |
| << expected << "\nActual output " << out << '\n'; |
| assert(out == expected); |
| }; |
| |
| auto test_exception = []<class CharT, class... Args>( |
| std::string_view what, std::basic_string<CharT> fmt, const Args&... args) { |
| #ifndef TEST_HAS_NO_EXCEPTIONS |
| try { |
| std::format(std::locale(), fmt, args...); |
| if constexpr (std::same_as<CharT, char>) |
| std::cerr << "\nFormat string " << fmt |
| << "\nDidn't throw an exception.\n"; |
| assert(false); |
| } catch (std::format_error& e) { |
| #ifdef _LIBCPP_VERSION |
| if constexpr (std::same_as<CharT, char>) |
| if (e.what() != what) |
| std::cerr << "\nFormat string " << fmt << "\nExpected exception " |
| << what << "\nActual exception " << e.what() << '\n'; |
| #endif |
| LIBCPP_ASSERT(e.what() == what); |
| return; |
| } |
| assert(false); |
| #else |
| (void)what; |
| (void)fmt; |
| (void)sizeof...(args); |
| #endif |
| }; |
| |
| int main(int, char**) { |
| format_tests_char_to_wchar_t(test); |
| |
| format_tests<char>(test, test_exception); |
| format_tests<wchar_t>(test, test_exception); |
| |
| return 0; |
| } |