Program Listing for File IndexSequence.hpp
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/*
* SPDX-FileCopyrightText: Copyright (c) 2022 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
* SPDX-License-Identifier: Apache-2.0
*
* 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.
*/
#ifndef NVCV_DETAIL_INDEXSEQUENCE_HPP
#define NVCV_DETAIL_INDEXSEQUENCE_HPP
#include <cstddef>
#include <type_traits>
namespace nvcv { namespace detail {
template<std::size_t... II>
struct IndexSequence
{
};
template<std::size_t N, std::size_t... II>
struct MakeIndexSequenceImpl
{
using type = typename MakeIndexSequenceImpl<N - 1, N, II...>::type;
};
template<std::size_t... II>
struct MakeIndexSequenceImpl<0, II...>
{
using type = IndexSequence<(II - 1)...>;
};
template<std::size_t N>
using MakeIndexSequence = typename MakeIndexSequenceImpl<N>::type;
}} // namespace nvcv::detail
#endif // NVCV_DETAIL_INDEXSEQUENCE_HPP