72 lines
2.0 KiB
C++
72 lines
2.0 KiB
C++
/*
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* Cppcheck - A tool for static C/C++ code analysis
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* Copyright (C) 2007-2023 Cppcheck team.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef smallvectorH
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#define smallvectorH
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#include <cstddef>
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static constexpr std::size_t DefaultSmallVectorSize = 3;
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#ifdef HAVE_BOOST
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#include <boost/container/small_vector.hpp>
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template<typename T, std::size_t N = DefaultSmallVectorSize>
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using SmallVector = boost::container::small_vector<T, N>;
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#else
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#include <utility>
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#include <vector>
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template<class T, std::size_t N>
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struct TaggedAllocator : std::allocator<T>
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{
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template<class ... Ts>
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// cppcheck-suppress noExplicitConstructor
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// NOLINTNEXTLINE(google-explicit-constructor)
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TaggedAllocator(Ts&&... ts)
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: std::allocator<T>(std::forward<Ts>(ts)...)
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{}
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template<class U>
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// cppcheck-suppress noExplicitConstructor
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// NOLINTNEXTLINE(google-explicit-constructor)
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TaggedAllocator(const TaggedAllocator<U, N> /*unused*/) {}
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template<class U>
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struct rebind
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{
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using other = TaggedAllocator<U, N>;
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};
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};
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template<typename T, std::size_t N = DefaultSmallVectorSize>
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class SmallVector : public std::vector<T, TaggedAllocator<T, N>>
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{
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public:
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template<class ... Ts>
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// NOLINTNEXTLINE(google-explicit-constructor)
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SmallVector(Ts&&... ts)
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: std::vector<T, TaggedAllocator<T, N>>(std::forward<Ts>(ts)...)
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{
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this->reserve(N);
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}
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};
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#endif
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#endif
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