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