Sprout/sprout/weed/detail/is_elem_and_container.hpp
bolero-MURAKAMI cb1077d247 add copyright
2013-08-08 18:54:33 +09:00

40 lines
1.2 KiB
C++

/*=============================================================================
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_WEED_DETAIL_IS_ELEM_AND_CONTAINER_HPP
#define SPROUT_WEED_DETAIL_IS_ELEM_AND_CONTAINER_HPP
#include <type_traits>
#include <sprout/config.hpp>
#include <sprout/weed/traits/type/is_container.hpp>
namespace sprout {
namespace weed {
namespace detail {
template<typename T, typename U, typename = void>
struct is_elem_and_container
: public std::false_type
{};
template<typename T, typename U>
struct is_elem_and_container<
T,
U,
typename std::enable_if<
sprout::weed::traits::is_container<U>::value
&& std::is_same<
typename U::value_type,
T
>::value
>::type
>
: public std::true_type
{};
} // namespace detail
} // namespace weed
} // namespace sprout
#endif // #ifndef SPROUT_WEED_DETAIL_IS_ELEM_AND_CONTAINER_HPP