103 lines
2.7 KiB
C++
103 lines
2.7 KiB
C++
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// Copyright (C) 2013 Vicente J. Botet Escriba
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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// 2013/10 Vicente J. Botet Escriba
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// Creation.
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#ifndef BOOST_CSBL_DEVECTOR_HPP
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#define BOOST_CSBL_DEVECTOR_HPP
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#include <boost/config.hpp>
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#include <boost/thread/csbl/vector.hpp>
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#include <boost/move/detail/move_helpers.hpp>
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namespace boost
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{
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namespace csbl
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{
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template <class T>
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class devector
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{
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typedef csbl::vector<T> vector_type;
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vector_type data_;
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std::size_t front_index_;
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BOOST_COPYABLE_AND_MOVABLE(devector)
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template <class U>
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void priv_push_back(BOOST_FWD_REF(U) x)
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{ data_.push_back(boost::forward<U>(x)); }
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public:
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typedef typename vector_type::size_type size_type;
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typedef typename vector_type::reference reference;
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typedef typename vector_type::const_reference const_reference;
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devector() : front_index_(0) {}
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devector(devector const& x) BOOST_NOEXCEPT
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: data_(x.data_),
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front_index_(x.front_index_)
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{}
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devector(BOOST_RV_REF(devector) x) BOOST_NOEXCEPT
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: data_(boost::move(x.data_)),
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front_index_(x.front_index_)
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{}
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devector& operator=(BOOST_COPY_ASSIGN_REF(devector) x)
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{
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if (&x != this)
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{
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data_ = x.data_;
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front_index_ = x.front_index_;
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}
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return *this;
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}
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devector& operator=(BOOST_RV_REF(devector) x)
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#if defined BOOST_THREAD_USES_BOOST_VECTOR
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BOOST_NOEXCEPT_IF(vector_type::allocator_traits_type::propagate_on_container_move_assignment::value)
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#endif
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{
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data_ = boost::move(x.data_);
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front_index_ = x.front_index_;
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return *this;
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}
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bool empty() const BOOST_NOEXCEPT
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{ return data_.size() == front_index_; }
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size_type size() const BOOST_NOEXCEPT
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{ return data_.size() - front_index_; }
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reference front() BOOST_NOEXCEPT
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{ return data_[front_index_]; }
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const_reference front() const BOOST_NOEXCEPT
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{ return data_[front_index_]; }
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reference back() BOOST_NOEXCEPT
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{ return data_.back(); }
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const_reference back() const BOOST_NOEXCEPT
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{ return data_.back(); }
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BOOST_MOVE_CONVERSION_AWARE_CATCH(push_back, T, void, priv_push_back)
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void pop_front()
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{
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++front_index_;
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if (empty()) {
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data_.clear();
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front_index_=0;
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}
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}
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};
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}
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}
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#endif // header
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