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/*
* Copyright 2008-2013 NVIDIA Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*! \file pair.h
* \brief A type encapsulating a heterogeneous pair of elements
*/
#pragma once
#include <thrust/detail/config.h>
#if defined(_CCCL_IMPLICIT_SYSTEM_HEADER_GCC)
# pragma GCC system_header
#elif defined(_CCCL_IMPLICIT_SYSTEM_HEADER_CLANG)
# pragma clang system_header
#elif defined(_CCCL_IMPLICIT_SYSTEM_HEADER_MSVC)
# pragma system_header
#endif // no system header
#include <cuda/std/utility>
THRUST_NAMESPACE_BEGIN
/*! \addtogroup utility
* \{
*/
/*! \addtogroup pair
* \{
*/
/*! This convenience metafunction is included for compatibility with
* \p tuple. It returns either the type of a \p pair's
* \c first_type or \c second_type in its nested type, \c type.
*
* \tparam N This parameter selects the member of interest.
* \tparam T A \c pair type of interest.
*/
template <size_t N, class T>
using tuple_element = ::cuda::std::tuple_element<N, T>;
/*! This convenience metafunction is included for compatibility with
* \p tuple. It returns \c 2, the number of elements of a \p pair,
* in its nested data member, \c value.
*
* \tparam Pair A \c pair type of interest.
*/
template <class T>
using tuple_size = ::cuda::std::tuple_size<T>;
/*! \p pair is a generic data structure encapsulating a heterogeneous
* pair of values.
*
* \tparam T1 The type of \p pair's first object type. There are no
* requirements on the type of \p T1. <tt>T1</tt>'s type is
* provided by <tt>pair::first_type</tt>.
*
* \tparam T2 The type of \p pair's second object type. There are no
* requirements on the type of \p T2. <tt>T2</tt>'s type is
* provided by <tt>pair::second_type</tt>.
*/
template <class T, class U>
using pair = ::cuda::std::pair<T, U>;
using ::cuda::std::get;
using ::cuda::std::make_pair;
/*! \endcond
*/
/*! \} // pair
*/
/*! \} // utility
*/
THRUST_NAMESPACE_END
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