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 // TODO FMT Investigate AppleClang ICE 13 // UNSUPPORTED: apple-clang-13 14 15 // <format> 16 17 // string vformat(string_view fmt, format_args args); 18 // wstring vformat(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 #include "string_literal.h" 27 28 auto test = []<string_literal fmt, class CharT, class... Args>(std::basic_string_view<CharT> expected, 29 const Args&... args) constexpr { 30 std::basic_string<CharT> out = 31 std::vformat(fmt.template sv<CharT>(), std::make_format_args<context_t<CharT>>(args...)); 32 assert(out == expected); 33 }; 34 35 auto test_exception = []<class CharT, class... Args>(std::string_view what, std::basic_string_view<CharT> fmt, 36 const Args&... args) { 37 #ifndef TEST_HAS_NO_EXCEPTIONS 38 try { 39 TEST_IGNORE_NODISCARD std::vformat(fmt, std::make_format_args<context_t<CharT>>(args...)); 40 assert(false); 41 } catch ([[maybe_unused]] const std::format_error& e) { 42 LIBCPP_ASSERT(e.what() == what); 43 return; 44 } 45 assert(false); 46 #endif 47 (void)what; 48 (void)fmt; 49 (void)sizeof...(args); 50 }; 51 52 int main(int, char**) { 53 format_tests<char>(test, test_exception); 54 55 #ifndef TEST_HAS_NO_WIDE_CHARACTERS 56 format_tests_char_to_wchar_t(test); 57 format_tests<wchar_t>(test, test_exception); 58 #endif 59 60 return 0; 61 } 62