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Sprout/sprout/tpp/algorithm/one_of.hpp
bolero-MURAKAMI cb1077d247 add copyright
2013-08-08 18:54:33 +09:00

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/*=============================================================================
Copyright (c) 2011-2013 Bolero MURAKAMI
https://github.com/bolero-MURAKAMI/Sprout
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
=============================================================================*/
#ifndef SPROUT_TPP_ALGORITHM_ONE_OF_HPP
#define SPROUT_TPP_ALGORITHM_ONE_OF_HPP
#include <type_traits>
#include <sprout/config.hpp>
#include <sprout/tpp/algorithm/none_of.hpp>
namespace sprout {
namespace tpp {
namespace detail {
template<bool... Values>
struct one_of_impl;
template<>
struct one_of_impl<>
: public std::false_type
{};
template<>
struct one_of_impl<true>
: public std::true_type
{};
template<>
struct one_of_impl<false>
: public std::false_type
{};
template<bool... Tail>
struct one_of_impl<true, Tail...>
: public sprout::tpp::none_of_c<Tail...>
{};
template<bool... Tail>
struct one_of_impl<false, Tail...>
: public std::integral_constant<bool, sprout::tpp::detail::one_of_impl<Tail...>::value>
{};
} // namespace detail
//
// one_of_c
//
template<bool... Values>
struct one_of_c
: public sprout::tpp::detail::one_of_impl<Values...>
{};
//
// one_of
//
template<typename... Types>
struct one_of
: public sprout::tpp::one_of_c<Types::value...>
{};
} // namespace tpp
} // namespace sprout
#endif // #ifndef SPROUT_TPP_ALGORITHM_ONE_OF_HPP