57 lines
1.5 KiB
C++
57 lines
1.5 KiB
C++
//===----------------------------------------------------------------------===//
|
|
//
|
|
// 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
|
|
|
|
// <charconv>
|
|
|
|
// struct from_chars_result
|
|
// friend bool operator==(const from_chars_result&, const from_chars_result&) = default;
|
|
|
|
// [charconv.syn]/2
|
|
// The types to_chars_result and from_chars_result have the data members and
|
|
// special members specified above. They have no base classes or members other
|
|
// than those specified.
|
|
|
|
#include <charconv>
|
|
|
|
#include <cassert>
|
|
#include <compare>
|
|
#include <concepts>
|
|
|
|
#include "test_macros.h"
|
|
|
|
constexpr bool test() {
|
|
std::from_chars_result lhs{nullptr, std::errc{}};
|
|
#if TEST_STD_VER > 17
|
|
std::from_chars_result rhs{nullptr, std::errc{}};
|
|
assert(lhs == rhs);
|
|
assert(!(lhs != rhs));
|
|
#endif
|
|
auto [ptr, ec] = lhs;
|
|
static_assert(std::is_same_v<decltype(ptr), const char*>);
|
|
assert(ptr == lhs.ptr);
|
|
static_assert(std::is_same_v<decltype(ec), std::errc>);
|
|
assert(ec == lhs.ec);
|
|
|
|
return true;
|
|
}
|
|
|
|
int main(int, char**) {
|
|
#if TEST_STD_VER > 17
|
|
static_assert(std::equality_comparable<std::from_chars_result>);
|
|
static_assert(!std::totally_ordered<std::from_chars_result>);
|
|
static_assert(!std::three_way_comparable<std::from_chars_result>);
|
|
#endif
|
|
|
|
assert(test());
|
|
static_assert(test());
|
|
|
|
return 0;
|
|
}
|