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-no-concepts 10 // UNSUPPORTED: libcpp-has-no-incomplete-format 11 // TODO FMT Evaluate gcc-11 status 12 // UNSUPPORTED: gcc-11 13 14 // <format> 15 16 // string vformat(string_view fmt, format_args args); 17 // wstring vformat(wstring_view fmt, wformat_args args); 18 19 #include <format> 20 #include <cassert> 21 #include <vector> 22 23 #include "test_macros.h" 24 #include "format_tests.h" 25 26 auto test = []<class CharT, class... Args>(std::basic_string<CharT> expected, 27 std::basic_string<CharT> fmt, 28 const Args&... args) { 29 std::basic_string<CharT> out = 30 std::vformat(fmt, std::make_format_args<context_t<CharT>>(args...)); 31 assert(out == expected); 32 }; 33 34 auto test_exception = []<class CharT, class... Args>( 35 std::string_view what, std::basic_string<CharT> fmt, const Args&... args) { 36 #ifndef TEST_HAS_NO_EXCEPTIONS 37 try { 38 TEST_IGNORE_NODISCARD std::vformat(fmt, std::make_format_args<context_t<CharT>>(args...)); 39 assert(false); 40 } catch ([[maybe_unused]] std::format_error& e) { 41 LIBCPP_ASSERT(e.what() == what); 42 return; 43 } 44 assert(false); 45 #endif 46 (void)what; 47 (void)fmt; 48 (void)sizeof...(args); 49 }; 50 51 int main(int, char**) { 52 format_tests<char>(test, test_exception); 53 54 #ifndef TEST_HAS_NO_WIDE_CHARACTERS 55 format_tests_char_to_wchar_t(test); 56 format_tests<wchar_t>(test, test_exception); 57 #endif 58 59 return 0; 60 } 61