1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++98, c++03, c++11, c++14
// <variant>
// constexpr bool operator<(monostate, monostate) noexcept { return false; }
// constexpr bool operator>(monostate, monostate) noexcept { return false; }
// constexpr bool operator<=(monostate, monostate) noexcept { return true; }
// constexpr bool operator>=(monostate, monostate) noexcept { return true; }
// constexpr bool operator==(monostate, monostate) noexcept { return true; }
// constexpr bool operator!=(monostate, monostate) noexcept { return false; }
#include "test_macros.h"
#include <cassert>
#include <type_traits>
#include <variant>
int main() {
using M = std::monostate;
constexpr M m1{};
constexpr M m2{};
{
static_assert((m1 < m2) == false, "");
ASSERT_NOEXCEPT(m1 < m2);
}
{
static_assert((m1 > m2) == false, "");
ASSERT_NOEXCEPT(m1 > m2);
}
{
static_assert((m1 <= m2) == true, "");
ASSERT_NOEXCEPT(m1 <= m2);
}
{
static_assert((m1 >= m2) == true, "");
ASSERT_NOEXCEPT(m1 >= m2);
}
{
static_assert((m1 == m2) == true, "");
ASSERT_NOEXCEPT(m1 == m2);
}
{
static_assert((m1 != m2) == false, "");
ASSERT_NOEXCEPT(m1 != m2);
}
}
|
