56 lines
1.5 KiB
C++
56 lines
1.5 KiB
C++
// -*- C++ -*-
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//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// UNSUPPORTED: c++98, c++03, c++11, c++14
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// <variant>
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// constexpr bool operator<(monostate, monostate) noexcept { return false; }
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// constexpr bool operator>(monostate, monostate) noexcept { return false; }
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// constexpr bool operator<=(monostate, monostate) noexcept { return true; }
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// constexpr bool operator>=(monostate, monostate) noexcept { return true; }
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// constexpr bool operator==(monostate, monostate) noexcept { return true; }
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// constexpr bool operator!=(monostate, monostate) noexcept { return false; }
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#include "test_macros.h"
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#include <cassert>
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#include <type_traits>
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#include <variant>
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int main() {
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using M = std::monostate;
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constexpr M m1{};
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constexpr M m2{};
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{
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static_assert((m1 < m2) == false, "");
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ASSERT_NOEXCEPT(m1 < m2);
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}
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{
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static_assert((m1 > m2) == false, "");
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ASSERT_NOEXCEPT(m1 > m2);
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}
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{
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static_assert((m1 <= m2) == true, "");
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ASSERT_NOEXCEPT(m1 <= m2);
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}
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{
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static_assert((m1 >= m2) == true, "");
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ASSERT_NOEXCEPT(m1 >= m2);
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}
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{
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static_assert((m1 == m2) == true, "");
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ASSERT_NOEXCEPT(m1 == m2);
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}
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{
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static_assert((m1 != m2) == false, "");
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ASSERT_NOEXCEPT(m1 != m2);
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}
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}
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