disjunction.hpp

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// SPDX-License-Identifier: BSL-1.0
// SPDX-FileCopyrightText: Copyright (C) 2019 Tobias Hienzsch
 
#ifndef TETL_TYPE_TRAITS_DISJUNCTION_HPP
#define TETL_TYPE_TRAITS_DISJUNCTION_HPP
 
#include <etl/_type_traits/bool_constant.hpp>
#include <etl/_type_traits/conditional.hpp>
 
namespace etl {
 
/// Forms the logical disjunction of the type traits B..., effectively
/// performing a logical OR on the sequence of traits.
template <typename... B>
struct disjunction : bool_constant<(B::value or ...)> { };
 
template <typename... B>
inline constexpr bool disjunction_v = disjunction<B...>::value;
 
} // namespace etl
 
#endif // TETL_TYPE_TRAITS_DISJUNCTION_HPP