monostate.hpp

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// SPDX-License-Identifier: BSL-1.0
 
#ifndef TETL_VARIANT_MONOSTATE_HPP
#define TETL_VARIANT_MONOSTATE_HPP
 
#include <etl/_compare/strong_ordering.hpp>
 
namespace etl {

struct monostate {
    [[nodiscard]] friend constexpr auto operator==(monostate /*l*/, monostate /*r*/) noexcept -> bool { return true; }

    [[nodiscard]] friend constexpr auto operator<=>(monostate /*l*/, monostate /*r*/) noexcept -> etl::strong_ordering
    {
        return etl::strong_ordering::equal;
    }
};
 
} // namespace etl
 
#endif // TETL_VARIANT_MONOSTATE_HPP