| // Boost.Container varray |
| // |
| // Copyright (c) 2012-2015 Adam Wulkiewicz, Lodz, Poland. |
| // Copyright (c) 2011-2013 Andrew Hundt. |
| // |
| // Use, modification and distribution is subject to the Boost Software License, |
| // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
| // http://www.boost.org/LICENSE_1_0.txt) |
| |
| #ifndef BOOST_GEOMETRY_INDEX_DETAIL_VARRAY_HPP |
| #define BOOST_GEOMETRY_INDEX_DETAIL_VARRAY_HPP |
| |
| // TODO - REMOVE/CHANGE |
| #include <boost/container/detail/config_begin.hpp> |
| #include <boost/container/detail/workaround.hpp> |
| |
| #if defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) |
| #include <boost/move/detail/fwd_macros.hpp> |
| #endif |
| |
| #include <boost/config.hpp> |
| #include <boost/swap.hpp> |
| #include <boost/integer.hpp> |
| |
| #include <boost/mpl/assert.hpp> |
| |
| #include <boost/type_traits/is_unsigned.hpp> |
| #include <boost/type_traits/alignment_of.hpp> |
| #include <boost/type_traits/aligned_storage.hpp> |
| |
| // TODO - use std::reverse_iterator and std::iterator_traits |
| // instead Boost.Iterator to remove dependency? |
| // or boost/detail/iterator.hpp ? |
| #include <boost/iterator/reverse_iterator.hpp> |
| #include <boost/iterator/iterator_concepts.hpp> |
| |
| #include <boost/geometry/index/detail/assert.hpp> |
| #include <boost/geometry/index/detail/exception.hpp> |
| |
| #include <boost/geometry/index/detail/varray_detail.hpp> |
| |
| #include <boost/concept_check.hpp> |
| |
| /*! |
| \defgroup varray_non_member varray non-member functions |
| */ |
| |
| namespace boost { namespace geometry { namespace index { namespace detail { |
| |
| namespace varray_detail { |
| |
| template <typename Value, std::size_t Capacity> |
| struct varray_traits |
| { |
| typedef Value value_type; |
| typedef std::size_t size_type; |
| typedef std::ptrdiff_t difference_type; |
| typedef Value * pointer; |
| typedef const Value * const_pointer; |
| typedef Value & reference; |
| typedef const Value & const_reference; |
| |
| typedef boost::false_type use_memop_in_swap_and_move; |
| typedef boost::false_type use_optimized_swap; |
| typedef boost::false_type disable_trivial_init; |
| }; |
| |
| template <typename Varray> |
| struct checker |
| { |
| typedef typename Varray::size_type size_type; |
| typedef typename Varray::const_iterator const_iterator; |
| |
| static inline void check_capacity(Varray const& v, size_type s) |
| { |
| BOOST_GEOMETRY_INDEX_ASSERT(s <= v.capacity(), "size too big"); |
| |
| ::boost::ignore_unused_variable_warning(v); |
| ::boost::ignore_unused_variable_warning(s); |
| } |
| |
| static inline void throw_out_of_bounds(Varray const& v, size_type i) |
| { |
| if ( v.size() <= i ) |
| throw_out_of_range("index out of bounds"); |
| |
| ::boost::ignore_unused_variable_warning(v); |
| ::boost::ignore_unused_variable_warning(i); |
| } |
| |
| static inline void check_index(Varray const& v, size_type i) |
| { |
| BOOST_GEOMETRY_INDEX_ASSERT(i < v.size(), "index out of bounds"); |
| |
| ::boost::ignore_unused_variable_warning(v); |
| ::boost::ignore_unused_variable_warning(i); |
| } |
| |
| static inline void check_not_empty(Varray const& v) |
| { |
| BOOST_GEOMETRY_INDEX_ASSERT(!v.empty(), "the container is empty"); |
| |
| ::boost::ignore_unused_variable_warning(v); |
| } |
| |
| static inline void check_iterator_end_neq(Varray const& v, const_iterator position) |
| { |
| BOOST_GEOMETRY_INDEX_ASSERT(v.begin() <= position && position < v.end(), "iterator out of bounds"); |
| |
| ::boost::ignore_unused_variable_warning(v); |
| ::boost::ignore_unused_variable_warning(position); |
| } |
| |
| static inline void check_iterator_end_eq(Varray const& v, const_iterator position) |
| { |
| BOOST_GEOMETRY_INDEX_ASSERT(v.begin() <= position && position <= v.end(), "iterator out of bounds"); |
| |
| ::boost::ignore_unused_variable_warning(v); |
| ::boost::ignore_unused_variable_warning(position); |
| } |
| }; |
| |
| } // namespace varray_detail |
| |
| /*! |
| \brief A variable-size array container with fixed capacity. |
| |
| varray is a sequence container like boost::container::vector with contiguous storage that can |
| change in size, along with the static allocation, low overhead, and fixed capacity of boost::array. |
| |
| A varray is a sequence that supports random access to elements, constant time insertion and |
| removal of elements at the end, and linear time insertion and removal of elements at the beginning or |
| in the middle. The number of elements in a varray may vary dynamically up to a fixed capacity |
| because elements are stored within the object itself similarly to an array. However, objects are |
| initialized as they are inserted into varray unlike C arrays or std::array which must construct |
| all elements on instantiation. The behavior of varray enables the use of statically allocated |
| elements in cases with complex object lifetime requirements that would otherwise not be trivially |
| possible. |
| |
| \par Error Handling |
| Insertion beyond the capacity and out of bounds errors result in undefined behavior unless |
| otherwise specified. In this respect if size() == capacity(), then varray::push_back() |
| behaves like std::vector pop_front() if size() == empty(). The reason for this difference |
| is because unlike vectors, varray does not perform allocation. |
| |
| \par Advanced Usage |
| Error handling behavior can be modified to more closely match std::vector exception behavior |
| when exceeding bounds by providing an alternate Strategy and varray_traits instantiation. |
| |
| \tparam Value The type of element that will be stored. |
| \tparam Capacity The maximum number of elements varray can store, fixed at compile time. |
| \tparam Strategy Defines the public typedefs and error handlers, |
| implements StaticVectorStrategy and has some similarities |
| to an Allocator. |
| */ |
| template <typename Value, std::size_t Capacity> |
| class varray |
| { |
| typedef varray_detail::varray_traits<Value, Capacity> vt; |
| typedef varray_detail::checker<varray> errh; |
| |
| BOOST_MPL_ASSERT_MSG( |
| ( boost::is_unsigned<typename vt::size_type>::value && |
| sizeof(typename boost::uint_value_t<Capacity>::least) <= sizeof(typename vt::size_type) ), |
| SIZE_TYPE_IS_TOO_SMALL_FOR_SPECIFIED_CAPACITY, |
| (varray) |
| ); |
| |
| typedef boost::aligned_storage< |
| sizeof(Value[Capacity]), |
| boost::alignment_of<Value[Capacity]>::value |
| > aligned_storage_type; |
| |
| template <typename V, std::size_t C> |
| friend class varray; |
| |
| BOOST_COPYABLE_AND_MOVABLE(varray) |
| |
| #ifdef BOOST_NO_CXX11_RVALUE_REFERENCES |
| public: |
| template <std::size_t C> |
| varray & operator=(varray<Value, C> & sv) |
| { |
| typedef varray<Value, C> other; |
| this->operator=(static_cast<const ::boost::rv<other> &>(const_cast<const other &>(sv))); |
| return *this; |
| } |
| #endif |
| |
| public: |
| //! @brief The type of elements stored in the container. |
| typedef typename vt::value_type value_type; |
| //! @brief The unsigned integral type used by the container. |
| typedef typename vt::size_type size_type; |
| //! @brief The pointers difference type. |
| typedef typename vt::difference_type difference_type; |
| //! @brief The pointer type. |
| typedef typename vt::pointer pointer; |
| //! @brief The const pointer type. |
| typedef typename vt::const_pointer const_pointer; |
| //! @brief The value reference type. |
| typedef typename vt::reference reference; |
| //! @brief The value const reference type. |
| typedef typename vt::const_reference const_reference; |
| |
| //! @brief The iterator type. |
| typedef pointer iterator; |
| //! @brief The const iterator type. |
| typedef const_pointer const_iterator; |
| //! @brief The reverse iterator type. |
| typedef boost::reverse_iterator<iterator> reverse_iterator; |
| //! @brief The const reverse iterator. |
| typedef boost::reverse_iterator<const_iterator> const_reverse_iterator; |
| |
| //! @brief Constructs an empty varray. |
| //! |
| //! @par Throws |
| //! Nothing. |
| //! |
| //! @par Complexity |
| //! Constant O(1). |
| varray() |
| : m_size(0) |
| {} |
| |
| //! @pre <tt>count <= capacity()</tt> |
| //! |
| //! @brief Constructs a varray containing count default constructed Values. |
| //! |
| //! @param count The number of values which will be contained in the container. |
| //! |
| //! @par Throws |
| //! If Value's default constructor throws. |
| //! @internal |
| //! @li If a throwing error handler is specified, throws when the capacity is exceeded. (not by default). |
| //! @endinternal |
| //! |
| //! @par Complexity |
| //! Linear O(N). |
| explicit varray(size_type count) |
| : m_size(0) |
| { |
| this->resize(count); // may throw |
| } |
| |
| //! @pre <tt>count <= capacity()</tt> |
| //! |
| //! @brief Constructs a varray containing count copies of value. |
| //! |
| //! @param count The number of copies of a values that will be contained in the container. |
| //! @param value The value which will be used to copy construct values. |
| //! |
| //! @par Throws |
| //! If Value's copy constructor throws. |
| //! @internal |
| //! @li If a throwing error handler is specified, throws when the capacity is exceeded. (not by default). |
| //! @endinternal |
| //! |
| //! @par Complexity |
| //! Linear O(N). |
| varray(size_type count, value_type const& value) |
| : m_size(0) |
| { |
| this->resize(count, value); // may throw |
| } |
| |
| //! @pre |
| //! @li <tt>distance(first, last) <= capacity()</tt> |
| //! @li Iterator must meet the \c ForwardTraversalIterator concept. |
| //! |
| //! @brief Constructs a varray containing copy of a range <tt>[first, last)</tt>. |
| //! |
| //! @param first The iterator to the first element in range. |
| //! @param last The iterator to the one after the last element in range. |
| //! |
| //! @par Throws |
| //! If Value's constructor taking a dereferenced Iterator throws. |
| //! @internal |
| //! @li If a throwing error handler is specified, throws when the capacity is exceeded. (not by default). |
| //! @endinternal |
| //! |
| //! @par Complexity |
| //! Linear O(N). |
| template <typename Iterator> |
| varray(Iterator first, Iterator last) |
| : m_size(0) |
| { |
| BOOST_CONCEPT_ASSERT((boost_concepts::ForwardTraversal<Iterator>)); // Make sure you passed a ForwardIterator |
| |
| this->assign(first, last); // may throw |
| } |
| |
| //! @brief Constructs a copy of other varray. |
| //! |
| //! @param other The varray which content will be copied to this one. |
| //! |
| //! @par Throws |
| //! If Value's copy constructor throws. |
| //! |
| //! @par Complexity |
| //! Linear O(N). |
| varray(varray const& other) |
| : m_size(other.size()) |
| { |
| namespace sv = varray_detail; |
| sv::uninitialized_copy(other.begin(), other.end(), this->begin()); // may throw |
| } |
| |
| //! @pre <tt>other.size() <= capacity()</tt>. |
| //! |
| //! @brief Constructs a copy of other varray. |
| //! |
| //! @param other The varray which content will be copied to this one. |
| //! |
| //! @par Throws |
| //! If Value's copy constructor throws. |
| //! @internal |
| //! @li If a throwing error handler is specified, throws when the capacity is exceeded. (not by default). |
| //! @endinternal |
| //! |
| //! @par Complexity |
| //! Linear O(N). |
| template <std::size_t C> |
| varray(varray<value_type, C> const& other) |
| : m_size(other.size()) |
| { |
| errh::check_capacity(*this, other.size()); // may throw |
| |
| namespace sv = varray_detail; |
| sv::uninitialized_copy(other.begin(), other.end(), this->begin()); // may throw |
| } |
| |
| //! @brief Copy assigns Values stored in the other varray to this one. |
| //! |
| //! @param other The varray which content will be copied to this one. |
| //! |
| //! @par Throws |
| //! If Value's copy constructor or copy assignment throws. |
| //! |
| //! @par Complexity |
| //! Linear O(N). |
| varray & operator=(BOOST_COPY_ASSIGN_REF(varray) other) |
| { |
| this->assign(other.begin(), other.end()); // may throw |
| |
| return *this; |
| } |
| |
| //! @pre <tt>other.size() <= capacity()</tt> |
| //! |
| //! @brief Copy assigns Values stored in the other varray to this one. |
| //! |
| //! @param other The varray which content will be copied to this one. |
| //! |
| //! @par Throws |
| //! If Value's copy constructor or copy assignment throws. |
| //! @internal |
| //! @li If a throwing error handler is specified, throws when the capacity is exceeded. (not by default). |
| //! @endinternal |
| //! |
| //! @par Complexity |
| //! Linear O(N). |
| template <std::size_t C> |
| varray & operator=(BOOST_COPY_ASSIGN_REF_2_TEMPL_ARGS(varray, value_type, C) other) |
| { |
| this->assign(other.begin(), other.end()); // may throw |
| |
| return *this; |
| } |
| |
| //! @brief Move constructor. Moves Values stored in the other varray to this one. |
| //! |
| //! @param other The varray which content will be moved to this one. |
| //! |
| //! @par Throws |
| //! @li If \c boost::has_nothrow_move<Value>::value is \c true and Value's move constructor throws. |
| //! @li If \c boost::has_nothrow_move<Value>::value is \c false and Value's copy constructor throws. |
| //! @internal |
| //! @li It throws only if \c use_memop_in_swap_and_move is \c false_type - default. |
| //! @endinternal |
| //! |
| //! @par Complexity |
| //! Linear O(N). |
| varray(BOOST_RV_REF(varray) other) |
| { |
| typedef typename |
| vt::use_memop_in_swap_and_move use_memop_in_swap_and_move; |
| |
| this->move_ctor_dispatch(other, use_memop_in_swap_and_move()); |
| } |
| |
| //! @pre <tt>other.size() <= capacity()</tt> |
| //! |
| //! @brief Move constructor. Moves Values stored in the other varray to this one. |
| //! |
| //! @param other The varray which content will be moved to this one. |
| //! |
| //! @par Throws |
| //! @li If \c boost::has_nothrow_move<Value>::value is \c true and Value's move constructor throws. |
| //! @li If \c boost::has_nothrow_move<Value>::value is \c false and Value's copy constructor throws. |
| //! @internal |
| //! @li It throws only if \c use_memop_in_swap_and_move is false_type - default. |
| //! @endinternal |
| //! @internal |
| //! @li If a throwing error handler is specified, throws when the capacity is exceeded. (not by default). |
| //! @endinternal |
| //! |
| //! @par Complexity |
| //! Linear O(N). |
| template <std::size_t C> |
| varray(BOOST_RV_REF_2_TEMPL_ARGS(varray, value_type, C) other) |
| : m_size(other.m_size) |
| { |
| errh::check_capacity(*this, other.size()); // may throw |
| |
| typedef typename |
| vt::use_memop_in_swap_and_move use_memop_in_swap_and_move; |
| |
| this->move_ctor_dispatch(other, use_memop_in_swap_and_move()); |
| } |
| |
| //! @brief Move assignment. Moves Values stored in the other varray to this one. |
| //! |
| //! @param other The varray which content will be moved to this one. |
| //! |
| //! @par Throws |
| //! @li If \c boost::has_nothrow_move<Value>::value is \c true and Value's move constructor or move assignment throws. |
| //! @li If \c boost::has_nothrow_move<Value>::value is \c false and Value's copy constructor or copy assignment throws. |
| //! @internal |
| //! @li It throws only if \c use_memop_in_swap_and_move is \c false_type - default. |
| //! @endinternal |
| //! |
| //! @par Complexity |
| //! Linear O(N). |
| varray & operator=(BOOST_RV_REF(varray) other) |
| { |
| if ( &other == this ) |
| return *this; |
| |
| typedef typename |
| vt::use_memop_in_swap_and_move use_memop_in_swap_and_move; |
| |
| this->move_assign_dispatch(other, use_memop_in_swap_and_move()); |
| |
| return *this; |
| } |
| |
| //! @pre <tt>other.size() <= capacity()</tt> |
| //! |
| //! @brief Move assignment. Moves Values stored in the other varray to this one. |
| //! |
| //! @param other The varray which content will be moved to this one. |
| //! |
| //! @par Throws |
| //! @li If \c boost::has_nothrow_move<Value>::value is \c true and Value's move constructor or move assignment throws. |
| //! @li If \c boost::has_nothrow_move<Value>::value is \c false and Value's copy constructor or copy assignment throws. |
| //! @internal |
| //! @li It throws only if \c use_memop_in_swap_and_move is \c false_type - default. |
| //! @endinternal |
| //! @internal |
| //! @li If a throwing error handler is specified, throws when the capacity is exceeded. (not by default). |
| //! @endinternal |
| //! |
| //! @par Complexity |
| //! Linear O(N). |
| template <std::size_t C> |
| varray & operator=(BOOST_RV_REF_2_TEMPL_ARGS(varray, value_type, C) other) |
| { |
| errh::check_capacity(*this, other.size()); // may throw |
| |
| typedef typename |
| vt::use_memop_in_swap_and_move use_memop_in_swap_and_move; |
| |
| this->move_assign_dispatch(other, use_memop_in_swap_and_move()); |
| |
| return *this; |
| } |
| |
| //! @brief Destructor. Destroys Values stored in this container. |
| //! |
| //! @par Throws |
| //! Nothing |
| //! |
| //! @par Complexity |
| //! Linear O(N). |
| ~varray() |
| { |
| namespace sv = varray_detail; |
| sv::destroy(this->begin(), this->end()); |
| } |
| |
| //! @brief Swaps contents of the other varray and this one. |
| //! |
| //! @param other The varray which content will be swapped with this one's content. |
| //! |
| //! @par Throws |
| //! @li If \c boost::has_nothrow_move<Value>::value is \c true and Value's move constructor or move assignment throws, |
| //! @li If \c boost::has_nothrow_move<Value>::value is \c false and Value's copy constructor or copy assignment throws, |
| //! @internal |
| //! @li It throws only if \c use_memop_in_swap_and_move and \c use_optimized_swap are \c false_type - default. |
| //! @endinternal |
| //! |
| //! @par Complexity |
| //! Linear O(N). |
| void swap(varray & other) |
| { |
| typedef typename |
| vt::use_optimized_swap use_optimized_swap; |
| |
| this->swap_dispatch(other, use_optimized_swap()); |
| } |
| |
| //! @pre <tt>other.size() <= capacity() && size() <= other.capacity()</tt> |
| //! |
| //! @brief Swaps contents of the other varray and this one. |
| //! |
| //! @param other The varray which content will be swapped with this one's content. |
| //! |
| //! @par Throws |
| //! @li If \c boost::has_nothrow_move<Value>::value is \c true and Value's move constructor or move assignment throws, |
| //! @li If \c boost::has_nothrow_move<Value>::value is \c false and Value's copy constructor or copy assignment throws, |
| //! @internal |
| //! @li It throws only if \c use_memop_in_swap_and_move and \c use_optimized_swap are \c false_type - default. |
| //! @endinternal |
| //! @internal |
| //! @li If a throwing error handler is specified, throws when the capacity is exceeded. (not by default). |
| //! @endinternal |
| //! |
| //! @par Complexity |
| //! Linear O(N). |
| template <std::size_t C> |
| void swap(varray<value_type, C> & other) |
| { |
| errh::check_capacity(*this, other.size()); |
| errh::check_capacity(other, this->size()); |
| |
| typedef typename |
| vt::use_optimized_swap use_optimized_swap; |
| |
| this->swap_dispatch(other, use_optimized_swap()); |
| } |
| |
| //! @pre <tt>count <= capacity()</tt> |
| //! |
| //! @brief Inserts or erases elements at the end such that |
| //! the size becomes count. New elements are default constructed. |
| //! |
| //! @param count The number of elements which will be stored in the container. |
| //! |
| //! @par Throws |
| //! If Value's default constructor throws. |
| //! @internal |
| //! @li If a throwing error handler is specified, throws when the capacity is exceeded. (not by default). |
| //! @endinternal |
| //! |
| //! @par Complexity |
| //! Linear O(N). |
| void resize(size_type count) |
| { |
| namespace sv = varray_detail; |
| typedef typename vt::disable_trivial_init dti; |
| |
| if ( count < m_size ) |
| { |
| sv::destroy(this->begin() + count, this->end()); |
| } |
| else |
| { |
| errh::check_capacity(*this, count); // may throw |
| |
| sv::uninitialized_fill(this->end(), this->begin() + count, dti()); // may throw |
| } |
| m_size = count; // update end |
| } |
| |
| //! @pre <tt>count <= capacity()</tt> |
| //! |
| //! @brief Inserts or erases elements at the end such that |
| //! the size becomes count. New elements are copy constructed from value. |
| //! |
| //! @param count The number of elements which will be stored in the container. |
| //! @param value The value used to copy construct the new element. |
| //! |
| //! @par Throws |
| //! If Value's copy constructor throws. |
| //! @internal |
| //! @li If a throwing error handler is specified, throws when the capacity is exceeded. (not by default). |
| //! @endinternal |
| //! |
| //! @par Complexity |
| //! Linear O(N). |
| void resize(size_type count, value_type const& value) |
| { |
| if ( count < m_size ) |
| { |
| namespace sv = varray_detail; |
| sv::destroy(this->begin() + count, this->end()); |
| } |
| else |
| { |
| errh::check_capacity(*this, count); // may throw |
| |
| std::uninitialized_fill(this->end(), this->begin() + count, value); // may throw |
| } |
| m_size = count; // update end |
| } |
| |
| //! @pre <tt>count <= capacity()</tt> |
| //! |
| //! @brief This call has no effect because the Capacity of this container is constant. |
| //! |
| //! @param count The number of elements which the container should be able to contain. |
| //! |
| //! @par Throws |
| //! Nothing. |
| //! @internal |
| //! @li If a throwing error handler is specified, throws when the capacity is exceeded. (not by default). |
| //! @endinternal |
| //! |
| //! @par Complexity |
| //! Linear O(N). |
| void reserve(size_type count) |
| { |
| errh::check_capacity(*this, count); // may throw |
| } |
| |
| //! @pre <tt>size() < capacity()</tt> |
| //! |
| //! @brief Adds a copy of value at the end. |
| //! |
| //! @param value The value used to copy construct the new element. |
| //! |
| //! @par Throws |
| //! If Value's copy constructor throws. |
| //! @internal |
| //! @li If a throwing error handler is specified, throws when the capacity is exceeded. (not by default). |
| //! @endinternal |
| //! |
| //! @par Complexity |
| //! Constant O(1). |
| void push_back(value_type const& value) |
| { |
| typedef typename vt::disable_trivial_init dti; |
| |
| errh::check_capacity(*this, m_size + 1); // may throw |
| |
| namespace sv = varray_detail; |
| sv::construct(dti(), this->end(), value); // may throw |
| ++m_size; // update end |
| } |
| |
| //! @pre <tt>size() < capacity()</tt> |
| //! |
| //! @brief Moves value to the end. |
| //! |
| //! @param value The value to move construct the new element. |
| //! |
| //! @par Throws |
| //! If Value's move constructor throws. |
| //! @internal |
| //! @li If a throwing error handler is specified, throws when the capacity is exceeded. (not by default). |
| //! @endinternal |
| //! |
| //! @par Complexity |
| //! Constant O(1). |
| void push_back(BOOST_RV_REF(value_type) value) |
| { |
| typedef typename vt::disable_trivial_init dti; |
| |
| errh::check_capacity(*this, m_size + 1); // may throw |
| |
| namespace sv = varray_detail; |
| sv::construct(dti(), this->end(), ::boost::move(value)); // may throw |
| ++m_size; // update end |
| } |
| |
| //! @pre <tt>!empty()</tt> |
| //! |
| //! @brief Destroys last value and decreases the size. |
| //! |
| //! @par Throws |
| //! Nothing by default. |
| //! |
| //! @par Complexity |
| //! Constant O(1). |
| void pop_back() |
| { |
| errh::check_not_empty(*this); |
| |
| namespace sv = varray_detail; |
| sv::destroy(this->end() - 1); |
| --m_size; // update end |
| } |
| |
| //! @pre |
| //! @li \c position must be a valid iterator of \c *this in range <tt>[begin(), end()]</tt>. |
| //! @li <tt>size() < capacity()</tt> |
| //! |
| //! @brief Inserts a copy of element at position. |
| //! |
| //! @param position The position at which the new value will be inserted. |
| //! @param value The value used to copy construct the new element. |
| //! |
| //! @par Throws |
| //! @li If Value's copy constructor or copy assignment throws |
| //! @li If Value's move constructor or move assignment throws. |
| //! @internal |
| //! @li If a throwing error handler is specified, throws when the capacity is exceeded. (not by default). |
| //! @endinternal |
| //! |
| //! @par Complexity |
| //! Constant or linear. |
| iterator insert(iterator position, value_type const& value) |
| { |
| typedef typename vt::disable_trivial_init dti; |
| namespace sv = varray_detail; |
| |
| errh::check_iterator_end_eq(*this, position); |
| errh::check_capacity(*this, m_size + 1); // may throw |
| |
| if ( position == this->end() ) |
| { |
| sv::construct(dti(), position, value); // may throw |
| ++m_size; // update end |
| } |
| else |
| { |
| // TODO - should move be used only if it's nonthrowing? |
| value_type & r = *(this->end() - 1); |
| sv::construct(dti(), this->end(), boost::move(r)); // may throw |
| ++m_size; // update end |
| sv::move_backward(position, this->end() - 2, this->end() - 1); // may throw |
| sv::assign(position, value); // may throw |
| } |
| |
| return position; |
| } |
| |
| //! @pre |
| //! @li \c position must be a valid iterator of \c *this in range <tt>[begin(), end()]</tt>. |
| //! @li <tt>size() < capacity()</tt> |
| //! |
| //! @brief Inserts a move-constructed element at position. |
| //! |
| //! @param position The position at which the new value will be inserted. |
| //! @param value The value used to move construct the new element. |
| //! |
| //! @par Throws |
| //! If Value's move constructor or move assignment throws. |
| //! @internal |
| //! @li If a throwing error handler is specified, throws when the capacity is exceeded. (not by default). |
| //! @endinternal |
| //! |
| //! @par Complexity |
| //! Constant or linear. |
| iterator insert(iterator position, BOOST_RV_REF(value_type) value) |
| { |
| typedef typename vt::disable_trivial_init dti; |
| namespace sv = varray_detail; |
| |
| errh::check_iterator_end_eq(*this, position); |
| errh::check_capacity(*this, m_size + 1); // may throw |
| |
| if ( position == this->end() ) |
| { |
| sv::construct(dti(), position, boost::move(value)); // may throw |
| ++m_size; // update end |
| } |
| else |
| { |
| // TODO - should move be used only if it's nonthrowing? |
| value_type & r = *(this->end() - 1); |
| sv::construct(dti(), this->end(), boost::move(r)); // may throw |
| ++m_size; // update end |
| sv::move_backward(position, this->end() - 2, this->end() - 1); // may throw |
| sv::assign(position, boost::move(value)); // may throw |
| } |
| |
| return position; |
| } |
| |
| //! @pre |
| //! @li \c position must be a valid iterator of \c *this in range <tt>[begin(), end()]</tt>. |
| //! @li <tt>size() + count <= capacity()</tt> |
| //! |
| //! @brief Inserts a count copies of value at position. |
| //! |
| //! @param position The position at which new elements will be inserted. |
| //! @param count The number of new elements which will be inserted. |
| //! @param value The value used to copy construct new elements. |
| //! |
| //! @par Throws |
| //! @li If Value's copy constructor or copy assignment throws. |
| //! @li If Value's move constructor or move assignment throws. |
| //! @internal |
| //! @li If a throwing error handler is specified, throws when the capacity is exceeded. (not by default). |
| //! @endinternal |
| //! |
| //! @par Complexity |
| //! Linear O(N). |
| iterator insert(iterator position, size_type count, value_type const& value) |
| { |
| errh::check_iterator_end_eq(*this, position); |
| errh::check_capacity(*this, m_size + count); // may throw |
| |
| if ( position == this->end() ) |
| { |
| std::uninitialized_fill(position, position + count, value); // may throw |
| m_size += count; // update end |
| } |
| else |
| { |
| namespace sv = varray_detail; |
| |
| difference_type to_move = std::distance(position, this->end()); |
| |
| // TODO - should following lines check for exception and revert to the old size? |
| |
| if ( count < static_cast<size_type>(to_move) ) |
| { |
| sv::uninitialized_move(this->end() - count, this->end(), this->end()); // may throw |
| m_size += count; // update end |
| sv::move_backward(position, position + to_move - count, this->end() - count); // may throw |
| std::fill_n(position, count, value); // may throw |
| } |
| else |
| { |
| std::uninitialized_fill(this->end(), position + count, value); // may throw |
| m_size += count - to_move; // update end |
| sv::uninitialized_move(position, position + to_move, position + count); // may throw |
| m_size += to_move; // update end |
| std::fill_n(position, to_move, value); // may throw |
| } |
| } |
| |
| return position; |
| } |
| |
| //! @pre |
| //! @li \c position must be a valid iterator of \c *this in range <tt>[begin(), end()]</tt>. |
| //! @li <tt>distance(first, last) <= capacity()</tt> |
| //! @li \c Iterator must meet the \c ForwardTraversalIterator concept. |
| //! |
| //! @brief Inserts a copy of a range <tt>[first, last)</tt> at position. |
| //! |
| //! @param position The position at which new elements will be inserted. |
| //! @param first The iterator to the first element of a range used to construct new elements. |
| //! @param last The iterator to the one after the last element of a range used to construct new elements. |
| //! |
| //! @par Throws |
| //! @li If Value's constructor and assignment taking a dereferenced \c Iterator. |
| //! @li If Value's move constructor or move assignment throws. |
| //! @internal |
| //! @li If a throwing error handler is specified, throws when the capacity is exceeded. (not by default). |
| //! @endinternal |
| //! |
| //! @par Complexity |
| //! Linear O(N). |
| template <typename Iterator> |
| iterator insert(iterator position, Iterator first, Iterator last) |
| { |
| BOOST_CONCEPT_ASSERT((boost_concepts::ForwardTraversal<Iterator>)); // Make sure you passed a ForwardIterator |
| |
| typedef typename boost::iterator_traversal<Iterator>::type traversal; |
| this->insert_dispatch(position, first, last, traversal()); |
| |
| return position; |
| } |
| |
| //! @pre \c position must be a valid iterator of \c *this in range <tt>[begin(), end())</tt> |
| //! |
| //! @brief Erases Value from position. |
| //! |
| //! @param position The position of the element which will be erased from the container. |
| //! |
| //! @par Throws |
| //! If Value's move assignment throws. |
| //! |
| //! @par Complexity |
| //! Linear O(N). |
| iterator erase(iterator position) |
| { |
| namespace sv = varray_detail; |
| |
| errh::check_iterator_end_neq(*this, position); |
| |
| //TODO - add empty check? |
| //errh::check_empty(*this); |
| |
| sv::move(position + 1, this->end(), position); // may throw |
| sv::destroy(this->end() - 1); |
| --m_size; |
| |
| return position; |
| } |
| |
| //! @pre |
| //! @li \c first and \c last must define a valid range |
| //! @li iterators must be in range <tt>[begin(), end()]</tt> |
| //! |
| //! @brief Erases Values from a range <tt>[first, last)</tt>. |
| //! |
| //! @param first The position of the first element of a range which will be erased from the container. |
| //! @param last The position of the one after the last element of a range which will be erased from the container. |
| //! |
| //! @par Throws |
| //! If Value's move assignment throws. |
| //! |
| //! @par Complexity |
| //! Linear O(N). |
| iterator erase(iterator first, iterator last) |
| { |
| namespace sv = varray_detail; |
| |
| errh::check_iterator_end_eq(*this, first); |
| errh::check_iterator_end_eq(*this, last); |
| |
| difference_type n = std::distance(first, last); |
| |
| //TODO - add invalid range check? |
| //BOOST_GEOMETRY_INDEX_ASSERT(0 <= n, "invalid range"); |
| //TODO - add this->size() check? |
| //BOOST_GEOMETRY_INDEX_ASSERT(n <= this->size(), "invalid range"); |
| |
| sv::move(last, this->end(), first); // may throw |
| sv::destroy(this->end() - n, this->end()); |
| m_size -= n; |
| |
| return first; |
| } |
| |
| //! @pre <tt>distance(first, last) <= capacity()</tt> |
| //! |
| //! @brief Assigns a range <tt>[first, last)</tt> of Values to this container. |
| //! |
| //! @param first The iterator to the first element of a range used to construct new content of this container. |
| //! @param last The iterator to the one after the last element of a range used to construct new content of this container. |
| //! |
| //! @par Throws |
| //! If Value's copy constructor or copy assignment throws, |
| //! |
| //! @par Complexity |
| //! Linear O(N). |
| template <typename Iterator> |
| void assign(Iterator first, Iterator last) |
| { |
| BOOST_CONCEPT_ASSERT((boost_concepts::ForwardTraversal<Iterator>)); // Make sure you passed a ForwardIterator |
| |
| typedef typename boost::iterator_traversal<Iterator>::type traversal; |
| this->assign_dispatch(first, last, traversal()); // may throw |
| } |
| |
| //! @pre <tt>count <= capacity()</tt> |
| //! |
| //! @brief Assigns a count copies of value to this container. |
| //! |
| //! @param count The new number of elements which will be container in the container. |
| //! @param value The value which will be used to copy construct the new content. |
| //! |
| //! @par Throws |
| //! If Value's copy constructor or copy assignment throws. |
| //! |
| //! @par Complexity |
| //! Linear O(N). |
| void assign(size_type count, value_type const& value) |
| { |
| if ( count < m_size ) |
| { |
| namespace sv = varray_detail; |
| |
| std::fill_n(this->begin(), count, value); // may throw |
| sv::destroy(this->begin() + count, this->end()); |
| } |
| else |
| { |
| errh::check_capacity(*this, count); // may throw |
| |
| std::fill_n(this->begin(), m_size, value); // may throw |
| std::uninitialized_fill(this->end(), this->begin() + count, value); // may throw |
| } |
| m_size = count; // update end |
| } |
| |
| #if !defined(BOOST_CONTAINER_VARRAY_DISABLE_EMPLACE) |
| #if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) || defined(BOOST_CONTAINER_DOXYGEN_INVOKED) |
| //! @pre <tt>size() < capacity()</tt> |
| //! |
| //! @brief Inserts a Value constructed with |
| //! \c std::forward<Args>(args)... in the end of the container. |
| //! |
| //! @param args The arguments of the constructor of the new element which will be created at the end of the container. |
| //! |
| //! @par Throws |
| //! If in-place constructor throws or Value's move constructor throws. |
| //! @internal |
| //! @li If a throwing error handler is specified, throws when the capacity is exceeded. (not by default). |
| //! @endinternal |
| //! |
| //! @par Complexity |
| //! Constant O(1). |
| template<class ...Args> |
| void emplace_back(BOOST_FWD_REF(Args) ...args) |
| { |
| typedef typename vt::disable_trivial_init dti; |
| |
| errh::check_capacity(*this, m_size + 1); // may throw |
| |
| namespace sv = varray_detail; |
| sv::construct(dti(), this->end(), ::boost::forward<Args>(args)...); // may throw |
| ++m_size; // update end |
| } |
| |
| //! @pre |
| //! @li \c position must be a valid iterator of \c *this in range <tt>[begin(), end()]</tt> |
| //! @li <tt>size() < capacity()</tt> |
| //! |
| //! @brief Inserts a Value constructed with |
| //! \c std::forward<Args>(args)... before position |
| //! |
| //! @param position The position at which new elements will be inserted. |
| //! @param args The arguments of the constructor of the new element. |
| //! |
| //! @par Throws |
| //! If in-place constructor throws or if Value's move constructor or move assignment throws. |
| //! @internal |
| //! @li If a throwing error handler is specified, throws when the capacity is exceeded. (not by default). |
| //! @endinternal |
| //! |
| //! @par Complexity |
| //! Constant or linear. |
| template<class ...Args> |
| iterator emplace(iterator position, BOOST_FWD_REF(Args) ...args) |
| { |
| typedef typename vt::disable_trivial_init dti; |
| |
| namespace sv = varray_detail; |
| |
| errh::check_iterator_end_eq(*this, position); |
| errh::check_capacity(*this, m_size + 1); // may throw |
| |
| if ( position == this->end() ) |
| { |
| sv::construct(dti(), position, ::boost::forward<Args>(args)...); // may throw |
| ++m_size; // update end |
| } |
| else |
| { |
| // TODO - should following lines check for exception and revert to the old size? |
| |
| // TODO - should move be used only if it's nonthrowing? |
| value_type & r = *(this->end() - 1); |
| sv::construct(dti(), this->end(), boost::move(r)); // may throw |
| ++m_size; // update end |
| sv::move_backward(position, this->end() - 2, this->end() - 1); // may throw |
| |
| aligned_storage<sizeof(value_type), alignment_of<value_type>::value> temp_storage; |
| value_type * val_p = static_cast<value_type *>(temp_storage.address()); |
| sv::construct(dti(), val_p, ::boost::forward<Args>(args)...); // may throw |
| sv::scoped_destructor<value_type> d(val_p); |
| sv::assign(position, ::boost::move(*val_p)); // may throw |
| } |
| |
| return position; |
| } |
| |
| #else // !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) || defined(BOOST_CONTAINER_DOXYGEN_INVOKED) |
| |
| #define BOOST_GEOMETRY_INDEX_DETAIL_VARRAY_EMPLACE(N) \ |
| BOOST_MOVE_TMPL_LT##N BOOST_MOVE_CLASS##N BOOST_MOVE_GT##N \ |
| void emplace_back(BOOST_MOVE_UREF##N) \ |
| { \ |
| typedef typename vt::disable_trivial_init dti; \ |
| \ |
| errh::check_capacity(*this, m_size + 1); /*may throw*/\ |
| \ |
| namespace sv = varray_detail; \ |
| sv::construct(dti(), this->end() BOOST_MOVE_I##N BOOST_MOVE_FWD##N ); /*may throw*/\ |
| ++m_size; /*update end*/ \ |
| } \ |
| \ |
| BOOST_MOVE_TMPL_LT##N BOOST_MOVE_CLASS##N BOOST_MOVE_GT##N \ |
| iterator emplace(iterator position BOOST_MOVE_I##N BOOST_MOVE_UREF##N) \ |
| { \ |
| typedef typename vt::disable_trivial_init dti; \ |
| namespace sv = varray_detail; \ |
| \ |
| errh::check_iterator_end_eq(*this, position); \ |
| errh::check_capacity(*this, m_size + 1); /*may throw*/\ |
| \ |
| if ( position == this->end() ) \ |
| { \ |
| sv::construct(dti(), position BOOST_MOVE_I##N BOOST_MOVE_FWD##N ); /*may throw*/\ |
| ++m_size; /*update end*/ \ |
| } \ |
| else \ |
| { \ |
| /* TODO - should following lines check for exception and revert to the old size? */ \ |
| /* TODO - should move be used only if it's nonthrowing? */ \ |
| \ |
| value_type & r = *(this->end() - 1); \ |
| sv::construct(dti(), this->end(), boost::move(r)); /*may throw*/\ |
| ++m_size; /*update end*/ \ |
| sv::move_backward(position, this->end() - 2, this->end() - 1); /*may throw*/\ |
| \ |
| aligned_storage<sizeof(value_type), alignment_of<value_type>::value> temp_storage; \ |
| value_type * val_p = static_cast<value_type *>(temp_storage.address()); \ |
| sv::construct(dti(), val_p BOOST_MOVE_I##N BOOST_MOVE_FWD##N ); /*may throw*/\ |
| sv::scoped_destructor<value_type> d(val_p); \ |
| sv::assign(position, ::boost::move(*val_p)); /*may throw*/\ |
| } \ |
| \ |
| return position; \ |
| } \ |
| |
| BOOST_MOVE_ITERATE_0TO9(BOOST_GEOMETRY_INDEX_DETAIL_VARRAY_EMPLACE) |
| #undef BOOST_GEOMETRY_INDEX_DETAIL_VARRAY_EMPLACE |
| |
| #endif // !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) || defined(BOOST_CONTAINER_DOXYGEN_INVOKED) |
| #endif // !BOOST_CONTAINER_VARRAY_DISABLE_EMPLACE |
| |
| //! @brief Removes all elements from the container. |
| //! |
| //! @par Throws |
| //! Nothing. |
| //! |
| //! @par Complexity |
| //! Constant O(1). |
| void clear() |
| { |
| namespace sv = varray_detail; |
| sv::destroy(this->begin(), this->end()); |
| m_size = 0; // update end |
| } |
| |
| //! @pre <tt>i < size()</tt> |
| //! |
| //! @brief Returns reference to the i-th element. |
| //! |
| //! @param i The element's index. |
| //! |
| //! @return reference to the i-th element |
| //! from the beginning of the container. |
| //! |
| //! @par Throws |
| //! \c std::out_of_range exception by default. |
| //! |
| //! @par Complexity |
| //! Constant O(1). |
| reference at(size_type i) |
| { |
| errh::throw_out_of_bounds(*this, i); // may throw |
| return *(this->begin() + i); |
| } |
| |
| //! @pre <tt>i < size()</tt> |
| //! |
| //! @brief Returns const reference to the i-th element. |
| //! |
| //! @param i The element's index. |
| //! |
| //! @return const reference to the i-th element |
| //! from the beginning of the container. |
| //! |
| //! @par Throws |
| //! \c std::out_of_range exception by default. |
| //! |
| //! @par Complexity |
| //! Constant O(1). |
| const_reference at(size_type i) const |
| { |
| errh::throw_out_of_bounds(*this, i); // may throw |
| return *(this->begin() + i); |
| } |
| |
| //! @pre <tt>i < size()</tt> |
| //! |
| //! @brief Returns reference to the i-th element. |
| //! |
| //! @param i The element's index. |
| //! |
| //! @return reference to the i-th element |
| //! from the beginning of the container. |
| //! |
| //! @par Throws |
| //! Nothing by default. |
| //! |
| //! @par Complexity |
| //! Constant O(1). |
| reference operator[](size_type i) |
| { |
| // TODO: Remove bounds check? std::vector and std::array operator[] don't check. |
| errh::check_index(*this, i); |
| return *(this->begin() + i); |
| } |
| |
| //! @pre <tt>i < size()</tt> |
| //! |
| //! @brief Returns const reference to the i-th element. |
| //! |
| //! @param i The element's index. |
| //! |
| //! @return const reference to the i-th element |
| //! from the beginning of the container. |
| //! |
| //! @par Throws |
| //! Nothing by default. |
| //! |
| //! @par Complexity |
| //! Constant O(1). |
| const_reference operator[](size_type i) const |
| { |
| errh::check_index(*this, i); |
| return *(this->begin() + i); |
| } |
| |
| //! @pre \c !empty() |
| //! |
| //! @brief Returns reference to the first element. |
| //! |
| //! @return reference to the first element |
| //! from the beginning of the container. |
| //! |
| //! @par Throws |
| //! Nothing by default. |
| //! |
| //! @par Complexity |
| //! Constant O(1). |
| reference front() |
| { |
| errh::check_not_empty(*this); |
| return *(this->begin()); |
| } |
| |
| //! @pre \c !empty() |
| //! |
| //! @brief Returns const reference to the first element. |
| //! |
| //! @return const reference to the first element |
| //! from the beginning of the container. |
| //! |
| //! @par Throws |
| //! Nothing by default. |
| //! |
| //! @par Complexity |
| //! Constant O(1). |
| const_reference front() const |
| { |
| errh::check_not_empty(*this); |
| return *(this->begin()); |
| } |
| |
| //! @pre \c !empty() |
| //! |
| //! @brief Returns reference to the last element. |
| //! |
| //! @return reference to the last element |
| //! from the beginning of the container. |
| //! |
| //! @par Throws |
| //! Nothing by default. |
| //! |
| //! @par Complexity |
| //! Constant O(1). |
| reference back() |
| { |
| errh::check_not_empty(*this); |
| return *(this->end() - 1); |
| } |
| |
| //! @pre \c !empty() |
| //! |
| //! @brief Returns const reference to the first element. |
| //! |
| //! @return const reference to the last element |
| //! from the beginning of the container. |
| //! |
| //! @par Throws |
| //! Nothing by default. |
| //! |
| //! @par Complexity |
| //! Constant O(1). |
| const_reference back() const |
| { |
| errh::check_not_empty(*this); |
| return *(this->end() - 1); |
| } |
| |
| //! @brief Pointer such that <tt>[data(), data() + size())</tt> is a valid range. |
| //! For a non-empty vector <tt>data() == &front()</tt>. |
| //! |
| //! @par Throws |
| //! Nothing. |
| //! |
| //! @par Complexity |
| //! Constant O(1). |
| Value * data() |
| { |
| return boost::addressof(*(this->ptr())); |
| } |
| |
| //! @brief Const pointer such that <tt>[data(), data() + size())</tt> is a valid range. |
| //! For a non-empty vector <tt>data() == &front()</tt>. |
| //! |
| //! @par Throws |
| //! Nothing. |
| //! |
| //! @par Complexity |
| //! Constant O(1). |
| const Value * data() const |
| { |
| return boost::addressof(*(this->ptr())); |
| } |
| |
| |
| //! @brief Returns iterator to the first element. |
| //! |
| //! @return iterator to the first element contained in the vector. |
| //! |
| //! @par Throws |
| //! Nothing. |
| //! |
| //! @par Complexity |
| //! Constant O(1). |
| iterator begin() { return this->ptr(); } |
| |
| //! @brief Returns const iterator to the first element. |
| //! |
| //! @return const_iterator to the first element contained in the vector. |
| //! |
| //! @par Throws |
| //! Nothing. |
| //! |
| //! @par Complexity |
| //! Constant O(1). |
| const_iterator begin() const { return this->ptr(); } |
| |
| //! @brief Returns const iterator to the first element. |
| //! |
| //! @return const_iterator to the first element contained in the vector. |
| //! |
| //! @par Throws |
| //! Nothing. |
| //! |
| //! @par Complexity |
| //! Constant O(1). |
| const_iterator cbegin() const { return this->ptr(); } |
| |
| //! @brief Returns iterator to the one after the last element. |
| //! |
| //! @return iterator pointing to the one after the last element contained in the vector. |
| //! |
| //! @par Throws |
| //! Nothing. |
| //! |
| //! @par Complexity |
| //! Constant O(1). |
| iterator end() { return this->begin() + m_size; } |
| |
| //! @brief Returns const iterator to the one after the last element. |
| //! |
| //! @return const_iterator pointing to the one after the last element contained in the vector. |
| //! |
| //! @par Throws |
| //! Nothing. |
| //! |
| //! @par Complexity |
| //! Constant O(1). |
| const_iterator end() const { return this->begin() + m_size; } |
| |
| //! @brief Returns const iterator to the one after the last element. |
| //! |
| //! @return const_iterator pointing to the one after the last element contained in the vector. |
| //! |
| //! @par Throws |
| //! Nothing. |
| //! |
| //! @par Complexity |
| //! Constant O(1). |
| const_iterator cend() const { return this->cbegin() + m_size; } |
| |
| //! @brief Returns reverse iterator to the first element of the reversed container. |
| //! |
| //! @return reverse_iterator pointing to the beginning |
| //! of the reversed varray. |
| //! |
| //! @par Throws |
| //! Nothing. |
| //! |
| //! @par Complexity |
| //! Constant O(1). |
| reverse_iterator rbegin() { return reverse_iterator(this->end()); } |
| |
| //! @brief Returns const reverse iterator to the first element of the reversed container. |
| //! |
| //! @return const_reverse_iterator pointing to the beginning |
| //! of the reversed varray. |
| //! |
| //! @par Throws |
| //! Nothing. |
| //! |
| //! @par Complexity |
| //! Constant O(1). |
| const_reverse_iterator rbegin() const { return const_reverse_iterator(this->end()); } |
| |
| //! @brief Returns const reverse iterator to the first element of the reversed container. |
| //! |
| //! @return const_reverse_iterator pointing to the beginning |
| //! of the reversed varray. |
| //! |
| //! @par Throws |
| //! Nothing. |
| //! |
| //! @par Complexity |
| //! Constant O(1). |
| const_reverse_iterator crbegin() const { return const_reverse_iterator(this->end()); } |
| |
| //! @brief Returns reverse iterator to the one after the last element of the reversed container. |
| //! |
| //! @return reverse_iterator pointing to the one after the last element |
| //! of the reversed varray. |
| //! |
| //! @par Throws |
| //! Nothing. |
| //! |
| //! @par Complexity |
| //! Constant O(1). |
| reverse_iterator rend() { return reverse_iterator(this->begin()); } |
| |
| //! @brief Returns const reverse iterator to the one after the last element of the reversed container. |
| //! |
| //! @return const_reverse_iterator pointing to the one after the last element |
| //! of the reversed varray. |
| //! |
| //! @par Throws |
| //! Nothing. |
| //! |
| //! @par Complexity |
| //! Constant O(1). |
| const_reverse_iterator rend() const { return const_reverse_iterator(this->begin()); } |
| |
| //! @brief Returns const reverse iterator to the one after the last element of the reversed container. |
| //! |
| //! @return const_reverse_iterator pointing to the one after the last element |
| //! of the reversed varray. |
| //! |
| //! @par Throws |
| //! Nothing. |
| //! |
| //! @par Complexity |
| //! Constant O(1). |
| const_reverse_iterator crend() const { return const_reverse_iterator(this->begin()); } |
| |
| //! @brief Returns container's capacity. |
| //! |
| //! @return container's capacity. |
| //! |
| //! @par Throws |
| //! Nothing. |
| //! |
| //! @par Complexity |
| //! Constant O(1). |
| static size_type capacity() { return Capacity; } |
| |
| //! @brief Returns container's capacity. |
| //! |
| //! @return container's capacity. |
| //! |
| //! @par Throws |
| //! Nothing. |
| //! |
| //! @par Complexity |
| //! Constant O(1). |
| static size_type max_size() { return Capacity; } |
| |
| //! @brief Returns the number of stored elements. |
| //! |
| //! @return Number of elements contained in the container. |
| //! |
| //! @par Throws |
| //! Nothing. |
| //! |
| //! @par Complexity |
| //! Constant O(1). |
| size_type size() const { return m_size; } |
| |
| //! @brief Queries if the container contains elements. |
| //! |
| //! @return true if the number of elements contained in the |
| //! container is equal to 0. |
| //! |
| //! @par Throws |
| //! Nothing. |
| //! |
| //! @par Complexity |
| //! Constant O(1). |
| bool empty() const { return 0 == m_size; } |
| |
| private: |
| |
| // @par Throws |
| // Nothing. |
| // @par Complexity |
| // Linear O(N). |
| template <std::size_t C> |
| void move_ctor_dispatch(varray<value_type, C> & other, boost::true_type /*use_memop*/) |
| { |
| ::memcpy(this->data(), other.data(), sizeof(Value) * other.m_size); |
| m_size = other.m_size; |
| } |
| |
| // @par Throws |
| // @li If boost::has_nothrow_move<Value>::value is true and Value's move constructor throws |
| // @li If boost::has_nothrow_move<Value>::value is false and Value's copy constructor throws. |
| // @par Complexity |
| // Linear O(N). |
| template <std::size_t C> |
| void move_ctor_dispatch(varray<value_type, C> & other, boost::false_type /*use_memop*/) |
| { |
| namespace sv = varray_detail; |
| sv::uninitialized_move_if_noexcept(other.begin(), other.end(), this->begin()); // may throw |
| m_size = other.m_size; |
| } |
| |
| // @par Throws |
| // Nothing. |
| // @par Complexity |
| // Linear O(N). |
| template <std::size_t C> |
| void move_assign_dispatch(varray<value_type, C> & other, boost::true_type /*use_memop*/) |
| { |
| this->clear(); |
| |
| ::memcpy(this->data(), other.data(), sizeof(Value) * other.m_size); |
| std::swap(m_size, other.m_size); |
| } |
| |
| // @par Throws |
| // @li If boost::has_nothrow_move<Value>::value is true and Value's move constructor or move assignment throws |
| // @li If boost::has_nothrow_move<Value>::value is false and Value's copy constructor or move assignment throws. |
| // @par Complexity |
| // Linear O(N). |
| template <std::size_t C> |
| void move_assign_dispatch(varray<value_type, C> & other, boost::false_type /*use_memop*/) |
| { |
| namespace sv = varray_detail; |
| if ( m_size <= static_cast<size_type>(other.size()) ) |
| { |
| sv::move_if_noexcept(other.begin(), other.begin() + m_size, this->begin()); // may throw |
| // TODO - perform uninitialized_copy first? |
| sv::uninitialized_move_if_noexcept(other.begin() + m_size, other.end(), this->end()); // may throw |
| } |
| else |
| { |
| sv::move_if_noexcept(other.begin(), other.end(), this->begin()); // may throw |
| sv::destroy(this->begin() + other.size(), this->end()); |
| } |
| m_size = other.size(); // update end |
| } |
| |
| // @par Throws |
| // Nothing. |
| // @par Complexity |
| // Linear O(N). |
| template <std::size_t C> |
| void swap_dispatch(varray<value_type, C> & other, boost::true_type const& /*use_optimized_swap*/) |
| { |
| typedef typename |
| boost::mpl::if_c< |
| Capacity < C, |
| aligned_storage_type, |
| typename varray<value_type, C>::aligned_storage_type |
| >::type |
| storage_type; |
| |
| storage_type temp; |
| Value * temp_ptr = reinterpret_cast<Value*>(temp.address()); |
| |
| ::memcpy(temp_ptr, this->data(), sizeof(Value) * this->size()); |
| ::memcpy(this->data(), other.data(), sizeof(Value) * other.size()); |
| ::memcpy(other.data(), temp_ptr, sizeof(Value) * this->size()); |
| |
| std::swap(m_size, other.m_size); |
| } |
| |
| // @par Throws |
| // If Value's move constructor or move assignment throws |
| // but only if use_memop_in_swap_and_move is false_type - default. |
| // @par Complexity |
| // Linear O(N). |
| template <std::size_t C> |
| void swap_dispatch(varray<value_type, C> & other, boost::false_type const& /*use_optimized_swap*/) |
| { |
| namespace sv = varray_detail; |
| |
| typedef typename |
| vt::use_memop_in_swap_and_move use_memop_in_swap_and_move; |
| |
| if ( this->size() < other.size() ) |
| swap_dispatch_impl(this->begin(), this->end(), other.begin(), other.end(), use_memop_in_swap_and_move()); // may throw |
| else |
| swap_dispatch_impl(other.begin(), other.end(), this->begin(), this->end(), use_memop_in_swap_and_move()); // may throw |
| std::swap(m_size, other.m_size); |
| } |
| |
| // @par Throws |
| // Nothing. |
| // @par Complexity |
| // Linear O(N). |
| void swap_dispatch_impl(iterator first_sm, iterator last_sm, iterator first_la, iterator last_la, boost::true_type const& /*use_memop*/) |
| { |
| //BOOST_GEOMETRY_INDEX_ASSERT(std::distance(first_sm, last_sm) <= std::distance(first_la, last_la), |
| // "incompatible ranges"); |
| |
| namespace sv = varray_detail; |
| for (; first_sm != last_sm ; ++first_sm, ++first_la) |
| { |
| boost::aligned_storage< |
| sizeof(value_type), |
| boost::alignment_of<value_type>::value |
| > temp_storage; |
| value_type * temp_ptr = reinterpret_cast<value_type*>(temp_storage.address()); |
| |
| ::memcpy(temp_ptr, boost::addressof(*first_sm), sizeof(value_type)); |
| ::memcpy(boost::addressof(*first_sm), boost::addressof(*first_la), sizeof(value_type)); |
| ::memcpy(boost::addressof(*first_la), temp_ptr, sizeof(value_type)); |
| } |
| |
| ::memcpy(first_sm, first_la, sizeof(value_type) * std::distance(first_la, last_la)); |
| } |
| |
| // @par Throws |
| // If Value's move constructor or move assignment throws. |
| // @par Complexity |
| // Linear O(N). |
| void swap_dispatch_impl(iterator first_sm, iterator last_sm, iterator first_la, iterator last_la, boost::false_type const& /*use_memop*/) |
| { |
| //BOOST_GEOMETRY_INDEX_ASSERT(std::distance(first_sm, last_sm) <= std::distance(first_la, last_la), |
| // "incompatible ranges"); |
| |
| namespace sv = varray_detail; |
| for (; first_sm != last_sm ; ++first_sm, ++first_la) |
| { |
| //boost::swap(*first_sm, *first_la); // may throw |
| value_type temp(boost::move(*first_sm)); // may throw |
| *first_sm = boost::move(*first_la); // may throw |
| *first_la = boost::move(temp); // may throw |
| } |
| sv::uninitialized_move(first_la, last_la, first_sm); // may throw |
| sv::destroy(first_la, last_la); |
| } |
| |
| // insert |
| |
| // @par Throws |
| // If Value's move constructor, move assignment throws |
| // or if Value's copy constructor or copy assignment throws. |
| // @par Complexity |
| // Linear O(N). |
| template <typename Iterator> |
| void insert_dispatch(iterator position, Iterator first, Iterator last, boost::random_access_traversal_tag const&) |
| { |
| BOOST_CONCEPT_ASSERT((boost_concepts::RandomAccessTraversal<Iterator>)); // Make sure you passed a RandomAccessIterator |
| |
| errh::check_iterator_end_eq(*this, position); |
| |
| typename boost::iterator_difference<Iterator>::type |
| count = std::distance(first, last); |
| |
| errh::check_capacity(*this, m_size + count); // may throw |
| |
| if ( position == this->end() ) |
| { |
| namespace sv = varray_detail; |
| |
| sv::uninitialized_copy(first, last, position); // may throw |
| m_size += count; // update end |
| } |
| else |
| { |
| this->insert_in_the_middle(position, first, last, count); // may throw |
| } |
| } |
| |
| // @par Throws |
| // If Value's move constructor, move assignment throws |
| // or if Value's copy constructor or copy assignment throws. |
| // @par Complexity |
| // Linear O(N). |
| template <typename Iterator, typename Traversal> |
| void insert_dispatch(iterator position, Iterator first, Iterator last, Traversal const& /*not_random_access*/) |
| { |
| errh::check_iterator_end_eq(*this, position); |
| |
| if ( position == this->end() ) |
| { |
| namespace sv = varray_detail; |
| |
| std::ptrdiff_t d = std::distance(position, this->begin() + Capacity); |
| std::size_t count = sv::uninitialized_copy_s(first, last, position, d); // may throw |
| |
| errh::check_capacity(*this, count <= static_cast<std::size_t>(d) ? m_size + count : Capacity + 1); // may throw |
| |
| m_size += count; |
| } |
| else |
| { |
| typename boost::iterator_difference<Iterator>::type |
| count = std::distance(first, last); |
| |
| errh::check_capacity(*this, m_size + count); // may throw |
| |
| this->insert_in_the_middle(position, first, last, count); // may throw |
| } |
| } |
| |
| // @par Throws |
| // If Value's move constructor, move assignment throws |
| // or if Value's copy constructor or copy assignment throws. |
| // @par Complexity |
| // Linear O(N). |
| template <typename Iterator> |
| void insert_in_the_middle(iterator position, Iterator first, Iterator last, difference_type count) |
| { |
| namespace sv = varray_detail; |
| |
| difference_type to_move = std::distance(position, this->end()); |
| |
| // TODO - should following lines check for exception and revert to the old size? |
| |
| if ( count < to_move ) |
| { |
| sv::uninitialized_move(this->end() - count, this->end(), this->end()); // may throw |
| m_size += count; // update end |
| sv::move_backward(position, position + to_move - count, this->end() - count); // may throw |
| sv::copy(first, last, position); // may throw |
| } |
| else |
| { |
| Iterator middle_iter = first; |
| std::advance(middle_iter, to_move); |
| |
| sv::uninitialized_copy(middle_iter, last, this->end()); // may throw |
| m_size += count - to_move; // update end |
| sv::uninitialized_move(position, position + to_move, position + count); // may throw |
| m_size += to_move; // update end |
| sv::copy(first, middle_iter, position); // may throw |
| } |
| } |
| |
| // assign |
| |
| // @par Throws |
| // If Value's constructor or assignment taking dereferenced Iterator throws. |
| // @par Complexity |
| // Linear O(N). |
| template <typename Iterator> |
| void assign_dispatch(Iterator first, Iterator last, boost::random_access_traversal_tag const& /*not_random_access*/) |
| { |
| namespace sv = varray_detail; |
| |
| typename boost::iterator_difference<Iterator>::type |
| s = std::distance(first, last); |
| |
| errh::check_capacity(*this, s); // may throw |
| |
| if ( m_size <= static_cast<size_type>(s) ) |
| { |
| sv::copy(first, first + m_size, this->begin()); // may throw |
| // TODO - perform uninitialized_copy first? |
| sv::uninitialized_copy(first + m_size, last, this->end()); // may throw |
| } |
| else |
| { |
| sv::copy(first, last, this->begin()); // may throw |
| sv::destroy(this->begin() + s, this->end()); |
| } |
| m_size = s; // update end |
| } |
| |
| // @par Throws |
| // If Value's constructor or assignment taking dereferenced Iterator throws. |
| // @par Complexity |
| // Linear O(N). |
| template <typename Iterator, typename Traversal> |
| void assign_dispatch(Iterator first, Iterator last, Traversal const& /*not_random_access*/) |
| { |
| namespace sv = varray_detail; |
| |
| size_type s = 0; |
| iterator it = this->begin(); |
| |
| for ( ; it != this->end() && first != last ; ++it, ++first, ++s ) |
| *it = *first; // may throw |
| |
| sv::destroy(it, this->end()); |
| |
| std::ptrdiff_t d = std::distance(it, this->begin() + Capacity); |
| std::size_t count = sv::uninitialized_copy_s(first, last, it, d); // may throw |
| s += count; |
| |
| errh::check_capacity(*this, count <= static_cast<std::size_t>(d) ? s : Capacity + 1); // may throw |
| |
| m_size = s; // update end |
| } |
| |
| pointer ptr() |
| { |
| return pointer(static_cast<Value*>(m_storage.address())); |
| } |
| |
| const_pointer ptr() const |
| { |
| return const_pointer(static_cast<const Value*>(m_storage.address())); |
| } |
| |
| size_type m_size; |
| aligned_storage_type m_storage; |
| }; |
| |
| #if !defined(BOOST_CONTAINER_DOXYGEN_INVOKED) |
| |
| template<typename Value> |
| class varray<Value, 0> |
| { |
| typedef varray_detail::varray_traits<Value, 0> vt; |
| typedef varray_detail::checker<varray> errh; |
| |
| public: |
| typedef typename vt::value_type value_type; |
| typedef typename vt::size_type size_type; |
| typedef typename vt::difference_type difference_type; |
| typedef typename vt::pointer pointer; |
| typedef typename vt::const_pointer const_pointer; |
| typedef typename vt::reference reference; |
| typedef typename vt::const_reference const_reference; |
| |
| typedef pointer iterator; |
| typedef const_pointer const_iterator; |
| typedef boost::reverse_iterator<iterator> reverse_iterator; |
| typedef boost::reverse_iterator<const_iterator> const_reverse_iterator; |
| |
| // nothrow |
| varray() {} |
| |
| // strong |
| explicit varray(size_type count) |
| { |
| errh::check_capacity(*this, count); // may throw |
| } |
| |
| // strong |
| varray(size_type count, value_type const&) |
| { |
| errh::check_capacity(*this, count); // may throw |
| } |
| |
| // strong |
| varray(varray const& /*other*/) |
| { |
| //errh::check_capacity(*this, count); |
| } |
| |
| // strong |
| template <std::size_t C> |
| varray(varray<value_type, C> const& other) |
| { |
| errh::check_capacity(*this, other.size()); // may throw |
| } |
| |
| // strong |
| template <typename Iterator> |
| varray(Iterator first, Iterator last) |
| { |
| errh::check_capacity(*this, std::distance(first, last)); // may throw |
| } |
| |
| // basic |
| varray & operator=(varray const& /*other*/) |
| { |
| //errh::check_capacity(*this, other.size()); |
| return *this; |
| } |
| |
| // basic |
| template <size_t C> |
| varray & operator=(varray<value_type, C> const& other) |
| { |
| errh::check_capacity(*this, other.size()); // may throw |
| return *this; |
| } |
| |
| // nothrow |
| ~varray() {} |
| |
| // strong |
| void resize(size_type count) |
| { |
| errh::check_capacity(*this, count); // may throw |
| } |
| |
| // strong |
| void resize(size_type count, value_type const&) |
| { |
| errh::check_capacity(*this, count); // may throw |
| } |
| |
| |
| // nothrow |
| void reserve(size_type count) |
| { |
| errh::check_capacity(*this, count); // may throw |
| } |
| |
| // strong |
| void push_back(value_type const&) |
| { |
| errh::check_capacity(*this, 1); // may throw |
| } |
| |
| // nothrow |
| void pop_back() |
| { |
| errh::check_not_empty(*this); |
| } |
| |
| // basic |
| void insert(iterator position, value_type const&) |
| { |
| errh::check_iterator_end_eq(*this, position); |
| errh::check_capacity(*this, 1); // may throw |
| } |
| |
| // basic |
| void insert(iterator position, size_type count, value_type const&) |
| { |
| errh::check_iterator_end_eq(*this, position); |
| errh::check_capacity(*this, count); // may throw |
| } |
| |
| // basic |
| template <typename Iterator> |
| void insert(iterator, Iterator first, Iterator last) |
| { |
| // TODO - add MPL_ASSERT, check if Iterator is really an iterator |
| errh::check_capacity(*this, std::distance(first, last)); // may throw |
| } |
| |
| // basic |
| void erase(iterator position) |
| { |
| errh::check_iterator_end_neq(*this, position); |
| } |
| |
| // basic |
| void erase(iterator first, iterator last) |
| { |
| errh::check_iterator_end_eq(*this, first); |
| errh::check_iterator_end_eq(*this, last); |
| |
| //BOOST_GEOMETRY_INDEX_ASSERT(0 <= n, "invalid range"); |
| } |
| |
| // basic |
| template <typename Iterator> |
| void assign(Iterator first, Iterator last) |
| { |
| // TODO - add MPL_ASSERT, check if Iterator is really an iterator |
| errh::check_capacity(*this, std::distance(first, last)); // may throw |
| } |
| |
| // basic |
| void assign(size_type count, value_type const&) |
| { |
| errh::check_capacity(*this, count); // may throw |
| } |
| |
| // nothrow |
| void clear() {} |
| |
| // strong |
| reference at(size_type i) |
| { |
| errh::throw_out_of_bounds(*this, i); // may throw |
| return *(this->begin() + i); |
| } |
| |
| // strong |
| const_reference at(size_type i) const |
| { |
| errh::throw_out_of_bounds(*this, i); // may throw |
| return *(this->begin() + i); |
| } |
| |
| // nothrow |
| reference operator[](size_type i) |
| { |
| errh::check_index(*this, i); |
| return *(this->begin() + i); |
| } |
| |
| // nothrow |
| const_reference operator[](size_type i) const |
| { |
| errh::check_index(*this, i); |
| return *(this->begin() + i); |
| } |
| |
| // nothrow |
| reference front() |
| { |
| errh::check_not_empty(*this); |
| return *(this->begin()); |
| } |
| |
| // nothrow |
| const_reference front() const |
| { |
| errh::check_not_empty(*this); |
| return *(this->begin()); |
| } |
| |
| // nothrow |
| reference back() |
| { |
| errh::check_not_empty(*this); |
| return *(this->end() - 1); |
| } |
| |
| // nothrow |
| const_reference back() const |
| { |
| errh::check_not_empty(*this); |
| return *(this->end() - 1); |
| } |
| |
| // nothrow |
| Value * data() { return boost::addressof(*(this->ptr())); } |
| const Value * data() const { return boost::addressof(*(this->ptr())); } |
| |
| // nothrow |
| iterator begin() { return this->ptr(); } |
| const_iterator begin() const { return this->ptr(); } |
| const_iterator cbegin() const { return this->ptr(); } |
| iterator end() { return this->begin(); } |
| const_iterator end() const { return this->begin(); } |
| const_iterator cend() const { return this->cbegin(); } |
| // nothrow |
| reverse_iterator rbegin() { return reverse_iterator(this->end()); } |
| const_reverse_iterator rbegin() const { return reverse_iterator(this->end()); } |
| const_reverse_iterator crbegin() const { return reverse_iterator(this->end()); } |
| reverse_iterator rend() { return reverse_iterator(this->begin()); } |
| const_reverse_iterator rend() const { return reverse_iterator(this->begin()); } |
| const_reverse_iterator crend() const { return reverse_iterator(this->begin()); } |
| |
| // nothrow |
| size_type capacity() const { return 0; } |
| size_type max_size() const { return 0; } |
| size_type size() const { return 0; } |
| bool empty() const { return true; } |
| |
| private: |
| pointer ptr() |
| { |
| return pointer(reinterpret_cast<Value*>(this)); |
| } |
| |
| const_pointer ptr() const |
| { |
| return const_pointer(reinterpret_cast<const Value*>(this)); |
| } |
| }; |
| |
| #endif // !BOOST_CONTAINER_DOXYGEN_INVOKED |
| |
| //! @brief Checks if contents of two varrays are equal. |
| //! |
| //! @ingroup varray_non_member |
| //! |
| //! @param x The first varray. |
| //! @param y The second varray. |
| //! |
| //! @return \c true if containers have the same size and elements in both containers are equal. |
| //! |
| //! @par Complexity |
| //! Linear O(N). |
| template<typename V, std::size_t C1, std::size_t C2> |
| bool operator== (varray<V, C1> const& x, varray<V, C2> const& y) |
| { |
| return x.size() == y.size() && std::equal(x.begin(), x.end(), y.begin()); |
| } |
| |
| //! @brief Checks if contents of two varrays are not equal. |
| //! |
| //! @ingroup varray_non_member |
| //! |
| //! @param x The first varray. |
| //! @param y The second varray. |
| //! |
| //! @return \c true if containers have different size or elements in both containers are not equal. |
| //! |
| //! @par Complexity |
| //! Linear O(N). |
| template<typename V, std::size_t C1, std::size_t C2> |
| bool operator!= (varray<V, C1> const& x, varray<V, C2> const& y) |
| { |
| return !(x==y); |
| } |
| |
| //! @brief Lexicographically compares varrays. |
| //! |
| //! @ingroup varray_non_member |
| //! |
| //! @param x The first varray. |
| //! @param y The second varray. |
| //! |
| //! @return \c true if x compares lexicographically less than y. |
| //! |
| //! @par Complexity |
| //! Linear O(N). |
| template<typename V, std::size_t C1, std::size_t C2> |
| bool operator< (varray<V, C1> const& x, varray<V, C2> const& y) |
| { |
| return std::lexicographical_compare(x.begin(), x.end(), y.begin(), y.end()); |
| } |
| |
| //! @brief Lexicographically compares varrays. |
| //! |
| //! @ingroup varray_non_member |
| //! |
| //! @param x The first varray. |
| //! @param y The second varray. |
| //! |
| //! @return \c true if y compares lexicographically less than x. |
| //! |
| //! @par Complexity |
| //! Linear O(N). |
| template<typename V, std::size_t C1, std::size_t C2> |
| bool operator> (varray<V, C1> const& x, varray<V, C2> const& y) |
| { |
| return y<x; |
| } |
| |
| //! @brief Lexicographically compares varrays. |
| //! |
| //! @ingroup varray_non_member |
| //! |
| //! @param x The first varray. |
| //! @param y The second varray. |
| //! |
| //! @return \c true if y don't compare lexicographically less than x. |
| //! |
| //! @par Complexity |
| //! Linear O(N). |
| template<typename V, std::size_t C1, std::size_t C2> |
| bool operator<= (varray<V, C1> const& x, varray<V, C2> const& y) |
| { |
| return !(y<x); |
| } |
| |
| //! @brief Lexicographically compares varrays. |
| //! |
| //! @ingroup varray_non_member |
| //! |
| //! @param x The first varray. |
| //! @param y The second varray. |
| //! |
| //! @return \c true if x don't compare lexicographically less than y. |
| //! |
| //! @par Complexity |
| //! Linear O(N). |
| template<typename V, std::size_t C1, std::size_t C2> |
| bool operator>= (varray<V, C1> const& x, varray<V, C2> const& y) |
| { |
| return !(x<y); |
| } |
| |
| //! @brief Swaps contents of two varrays. |
| //! |
| //! This function calls varray::swap(). |
| //! |
| //! @ingroup varray_non_member |
| //! |
| //! @param x The first varray. |
| //! @param y The second varray. |
| //! |
| //! @par Complexity |
| //! Linear O(N). |
| template<typename V, std::size_t C1, std::size_t C2> |
| inline void swap(varray<V, C1> & x, varray<V, C2> & y) |
| { |
| x.swap(y); |
| } |
| |
| }}}} // namespace boost::geometry::index::detail |
| |
| // TODO - REMOVE/CHANGE |
| #include <boost/container/detail/config_end.hpp> |
| |
| #endif // BOOST_GEOMETRY_INDEX_DETAIL_VARRAY_HPP |