forked from premiere/premiere-libtorrent
71 lines
2.4 KiB
C++
71 lines
2.4 KiB
C++
/*
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Copyright (c) 2017, Arvid Norberg, Alden Torres
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the distribution.
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* Neither the name of the author nor the names of its
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contributors may be used to endorse or promote products derived
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from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef TORRENT_UNIQUE_PTR_HPP
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#define TORRENT_UNIQUE_PTR_HPP
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#include <memory>
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#include <type_traits>
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#include "libtorrent/units.hpp"
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#include "libtorrent/assert.hpp"
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namespace libtorrent { namespace aux {
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template <typename T, typename IndexType = int>
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struct unique_ptr;
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template <typename T, typename IndexType>
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struct unique_ptr<T[], IndexType> : std::unique_ptr<T[]>
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{
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using base = std::unique_ptr<T[]>;
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using underlying_index = typename underlying_index_t<IndexType>::type;
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unique_ptr() = default;
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explicit unique_ptr(T* arr) : base(arr) {}
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auto operator[](IndexType idx) const ->
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#if TORRENT_AUTO_RETURN_TYPES
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decltype(auto)
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#else
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decltype(this->base::operator[](underlying_index()))
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#endif
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{
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TORRENT_ASSERT(idx >= IndexType(0));
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return this->base::operator[](std::size_t(static_cast<underlying_index>(idx)));
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}
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};
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}}
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#endif
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