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//===----------------------------------------------------------------------===//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++03, c++11, c++14, c++17
// UNSUPPORTED: libcpp-no-concepts
// UNSUPPORTED: libcpp-has-no-incomplete-format
// TODO FMT Evaluate gcc-11 status
// UNSUPPORTED: gcc-11
// Note this formatter shows additional information when tests are failing.
// This aids the development. Since other formatters fail in the same fashion
// they don't have this additional output.
// <format>
// template<class... Args>
// string format(string_view fmt, const Args&... args);
// template<class... Args>
// wstring format(wstring_view fmt, const Args&... args);
#include <format>
#include <cassert>
#ifndef _LIBCPP_HAS_NO_LOCALIZATION
# include <iostream>
#endif
#include <vector>
#include "test_macros.h"
#include "format_tests.h"
auto test = []<class CharT, class... Args>(std::basic_string<CharT> expected, std::basic_string<CharT> fmt,
const Args&... args) {
std::basic_string<CharT> out = std::format(fmt, args...);
#ifndef _LIBCPP_HAS_NO_LOCALIZATION
if constexpr (std::same_as<CharT, char>)
if (out != expected)
std::cerr << "\nFormat string " << fmt << "\nExpected output " << expected << "\nActual output " << out
<< '\n';
#endif
assert(out == expected);
};
auto test_exception =
[]<class CharT, class... Args>(std::string_view what, std::basic_string<CharT> fmt, const Args&... args) {
#ifndef TEST_HAS_NO_EXCEPTIONS
try {
std::format(fmt, args...);
# ifndef _LIBCPP_HAS_NO_LOCALIZATION
if constexpr (std::same_as<CharT, char>)
std::cerr << "\nFormat string " << fmt << "\nDidn't throw an exception.\n";
# endif
assert(false);
} catch (std::format_error& e) {
# if defined(_LIBCPP_VERSION) && !defined(_LIBCPP_HAS_NO_LOCALIZATION)
if constexpr (std::same_as<CharT, char>)
if (e.what() != what)
std::cerr << "\nFormat string " << fmt << "\nExpected exception " << what << "\nActual exception "
<< e.what() << '\n';
# endif
LIBCPP_ASSERT(e.what() == what);
return;
}
assert(false);
#endif
(void)what;
(void)fmt;
(void)sizeof...(args);
};
int main(int, char**) {
format_tests<char>(test, test_exception);
#ifndef TEST_HAS_NO_WIDE_CHARACTERS
format_tests_char_to_wchar_t(test);
format_tests<wchar_t>(test, test_exception);
#endif
return 0;
}
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