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 // UNSUPPORTED: no-threads 11 12 // UNSUPPORTED: GCC-ALWAYS_INLINE-FIXME 13 14 // TODO FMT This test should not require std::to_chars(floating-point) 15 // XFAIL: availability-fp_to_chars-missing 16 17 // <thread> 18 19 // template<class charT> 20 // struct formatter<thread::id, charT>; 21 22 // template<class... Args> 23 // string format(format_string<Args...> fmt, Args&&... args); 24 // template<class... Args> 25 // wstring format(wformat_string<Args...> fmt, Args&&... args); 26 27 #include <format> 28 #include <cassert> 29 30 #include "assert_macros.h" 31 #include "concat_macros.h" 32 #include "format.functions.tests.h" 33 #include "test_format_string.h" 34 #include "test_macros.h" 35 36 auto test = []<class CharT, class... Args>( 37 std::basic_string_view<CharT> expected, test_format_string<CharT, Args...> fmt, Args&&... args) { 38 std::basic_string<CharT> out = std::format(fmt, std::forward<Args>(args)...); 39 TEST_REQUIRE(out == expected, 40 TEST_WRITE_CONCATENATED( 41 "\nFormat string ", fmt, "\nExpected output ", expected, "\nActual output ", out, '\n')); 42 }; 43 44 auto test_exception = []<class CharT, class... Args>(std::string_view, std::basic_string_view<CharT>, Args&&...) { 45 // After P2216 most exceptions thrown by std::format become ill-formed. 46 // Therefore this tests does nothing. 47 }; 48 49 int main(int, char**) { 50 format_tests<char>(test, test_exception); 51 52 #ifndef TEST_HAS_NO_WIDE_CHARACTERS 53 format_tests<wchar_t>(test, test_exception); 54 #endif 55 56 return 0; 57 } 58