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 // TODO FMT Evaluate gcc-11 status 11 // UNSUPPORTED: gcc-11 12 13 // <format> 14 15 // string vformat(string_view fmt, format_args args); 16 // wstring vformat(wstring_view fmt, wformat_args args); 17 18 #include <format> 19 #include <cassert> 20 #include <vector> 21 22 #include "test_macros.h" 23 #include "format_tests.h" 24 25 auto test = []<class CharT, class... Args>(std::basic_string_view<CharT> expected, std::basic_string_view<CharT> fmt, 26 const Args&... args) { 27 std::basic_string<CharT> out = std::vformat(fmt, std::make_format_args<context_t<CharT>>(args...)); 28 assert(out == expected); 29 }; 30 31 auto test_exception = []<class CharT, class... Args>(std::string_view what, std::basic_string_view<CharT> fmt, 32 const Args&... args) { 33 #ifndef TEST_HAS_NO_EXCEPTIONS 34 try { 35 TEST_IGNORE_NODISCARD std::vformat(fmt, std::make_format_args<context_t<CharT>>(args...)); 36 assert(false); 37 } catch ([[maybe_unused]] const std::format_error& e) { 38 LIBCPP_ASSERT(e.what() == what); 39 return; 40 } 41 assert(false); 42 #endif 43 (void)what; 44 (void)fmt; 45 (void)sizeof...(args); 46 }; 47 48 int main(int, char**) { 49 format_tests<char>(test, test_exception); 50 51 #ifndef TEST_HAS_NO_WIDE_CHARACTERS 52 format_tests_char_to_wchar_t(test); 53 format_tests<wchar_t>(test, test_exception); 54 #endif 55 56 return 0; 57 } 58