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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-has-no-incomplete-format
// TODO FMT Evaluate gcc-12 status
// UNSUPPORTED: gcc-12
// TODO FMT Investigate AppleClang ICE
// UNSUPPORTED: apple-clang-13
// 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(format-string<Args...> fmt, const Args&... args);
// template<class... Args>
// wstring format(wformat-string<Args...> fmt, const Args&... args);
#include <format>
#include <cassert>
#include <vector>
#include "test_macros.h"
#include "format_tests.h"
#include "string_literal.h"
#ifndef TEST_HAS_NO_LOCALIZATION
# include <iostream>
# include <type_traits>
#endif
auto test = []<string_literal fmt, class CharT, class... Args>(std::basic_string_view<CharT> expected,
const Args&... args) constexpr {
std::basic_string<CharT> out = std::format(fmt.template sv<CharT>(), args...);
#ifndef TEST_HAS_NO_LOCALIZATION
if constexpr (std::same_as<CharT, char>)
if (out != expected)
std::cerr << "\nFormat string " << fmt.template sv<char>() << "\nExpected output " << expected
<< "\nActual output " << out << '\n';
#endif
assert(out == expected);
};
auto test_exception = []<class CharT, class... Args>(std::string_view, std::basic_string_view<CharT>, const Args&...) {
// After P2216 most exceptions thrown by std::format become ill-formed.
// Therefore this tests does nothing.
// A basic ill-formed test is done in format.verify.cpp
// The exceptions are tested by other functions that don't use the basic-format-string as fmt argument.
};
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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