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 11 // UNSUPPORTED: GCC-ALWAYS_INLINE-FIXME 12 13 // XFAIL: availability-fp_to_chars-missing 14 15 // <vector> 16 17 // template<class T, class charT> 18 // requires is-vector-bool-reference<T> 19 // struct formatter<T, charT> 20 21 // string vformat(string_view fmt, format_args args); 22 // wstring vformat(wstring_view fmt, wformat_args args); 23 24 #include <format> 25 #include <cassert> 26 27 #include "format.functions.tests.h" 28 #include "test_macros.h" 29 #include "assert_macros.h" 30 #include "concat_macros.h" 31 32 auto test = []<class CharT, class... Args>( 33 std::basic_string_view<CharT> expected, std::basic_string_view<CharT> fmt, Args&&... args) { 34 std::basic_string<CharT> out = std::vformat(fmt, std::make_format_args<context_t<CharT>>(args...)); 35 TEST_REQUIRE(out == expected, 36 TEST_WRITE_CONCATENATED( 37 "\nFormat string ", fmt, "\nExpected output ", expected, "\nActual output ", out, '\n')); 38 }; 39 40 auto test_exception = 41 []<class CharT, class... Args>( 42 [[maybe_unused]] std::string_view what, 43 [[maybe_unused]] std::basic_string_view<CharT> fmt, 44 [[maybe_unused]] Args&&... args) { 45 TEST_VALIDATE_EXCEPTION( 46 std::format_error, 47 [&]([[maybe_unused]] const std::format_error& e) { 48 TEST_LIBCPP_REQUIRE( 49 e.what() == what, 50 TEST_WRITE_CONCATENATED( 51 "\nFormat string ", fmt, "\nExpected exception ", what, "\nActual exception ", e.what(), '\n')); 52 }, 53 TEST_IGNORE_NODISCARD std::vformat(fmt, std::make_format_args<context_t<CharT>>(args...))); 54 }; 55 56 int main(int, char**) { 57 format_tests<char>(test, test_exception); 58 59 #ifndef TEST_HAS_NO_WIDE_CHARACTERS 60 format_tests<wchar_t>(test, test_exception); 61 #endif 62 63 return 0; 64 } 65