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Add boost::container::small_vector
This commit is contained in:
Yuri Kunde Schlesner
parent
155d20ab3c
commit
3abc84abaf
632
boost/container/small_vector.hpp
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632
boost/container/small_vector.hpp
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//////////////////////////////////////////////////////////////////////////////
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//
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// (C) Copyright Ion Gaztanaga 2015-2015. Distributed under the Boost
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// Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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// See http://www.boost.org/libs/container for documentation.
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//
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//////////////////////////////////////////////////////////////////////////////
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#ifndef BOOST_CONTAINER_CONTAINER_SMALL_VECTOR_HPP
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#define BOOST_CONTAINER_CONTAINER_SMALL_VECTOR_HPP
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#ifndef BOOST_CONFIG_HPP
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# include <boost/config.hpp>
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#endif
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#if defined(BOOST_HAS_PRAGMA_ONCE)
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# pragma once
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#endif
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#include <boost/container/detail/config_begin.hpp>
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#include <boost/container/detail/workaround.hpp>
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// container
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#include <boost/container/container_fwd.hpp>
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#include <boost/container/vector.hpp>
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#include <boost/container/allocator_traits.hpp>
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#include <boost/container/new_allocator.hpp> //new_allocator
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// container/detail
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#include <boost/container/detail/type_traits.hpp>
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#include <boost/container/detail/version_type.hpp>
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//move
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#include <boost/move/adl_move_swap.hpp>
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#include <boost/move/iterator.hpp>
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//move/detail
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#if defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
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#include <boost/move/detail/fwd_macros.hpp>
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#endif
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//std
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#if !defined(BOOST_NO_CXX11_HDR_INITIALIZER_LIST)
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#include <initializer_list> //for std::initializer_list
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#endif
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namespace boost {
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namespace container {
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#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
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template <class T, class Allocator = new_allocator<T> >
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class small_vector_base;
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#endif
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//! A non-standard allocator used to implement `small_vector`.
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//! Users should never use it directly. It is described here
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//! for documentation purposes.
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//!
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//! This allocator inherits from a standard-conforming allocator
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//! and forwards member functions to the standard allocator except
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//! when internal storage is being used as memory source.
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//!
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//! This allocator is a "partially_propagable" allocator and
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//! defines `is_partially_propagable` as true_type.
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//!
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//! A partially propagable allocator means that not all storage
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//! allocatod by an instance of `small_vector_allocator` can be
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//! deallocated by another instance of this type, even if both
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//! instances compare equal or an instance is propagated to another
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//! one using the copy/move constructor or assignment. The storage that
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//! can never be propagated is identified by `storage_is_unpropagable(p)`.
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//!
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//! `boost::container::vector` supports partially propagable allocators
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//! fallbacking to deep copy/swap/move operations when internal storage
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//! is being used to store vector elements.
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//!
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//! `small_vector_allocator` assumes that will be instantiated as
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//! `boost::container::vector< T, small_vector_allocator<Allocator> >`
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//! and internal storage can be obtained downcasting that vector
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//! to `small_vector_base<T>`.
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template<class Allocator>
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class small_vector_allocator
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: public Allocator
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{
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typedef unsigned int allocation_type;
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#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
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private:
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BOOST_COPYABLE_AND_MOVABLE(small_vector_allocator)
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BOOST_CONTAINER_FORCEINLINE const Allocator &as_base() const
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{ return static_cast<const Allocator&>(*this); }
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BOOST_CONTAINER_FORCEINLINE Allocator &as_base()
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{ return static_cast<Allocator&>(*this); }
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#endif //#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
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public:
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#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
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typedef allocator_traits<Allocator> allocator_traits_type;
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#endif //#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
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typedef typename allocator_traits<Allocator>::value_type value_type;
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typedef typename allocator_traits<Allocator>::pointer pointer;
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typedef typename allocator_traits<Allocator>::const_pointer const_pointer;
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typedef typename allocator_traits<Allocator>::reference reference;
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typedef typename allocator_traits<Allocator>::const_reference const_reference;
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typedef typename allocator_traits<Allocator>::size_type size_type;
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typedef typename allocator_traits<Allocator>::difference_type difference_type;
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typedef typename allocator_traits<Allocator>::void_pointer void_pointer;
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typedef typename allocator_traits<Allocator>::const_void_pointer const_void_pointer;
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typedef typename allocator_traits<Allocator>::propagate_on_container_copy_assignment propagate_on_container_copy_assignment;
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typedef typename allocator_traits<Allocator>::propagate_on_container_move_assignment propagate_on_container_move_assignment;
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typedef typename allocator_traits<Allocator>::propagate_on_container_swap propagate_on_container_swap;
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//! An integral constant with member `value == false`
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typedef BOOST_CONTAINER_IMPDEF(container_detail::bool_<false>) is_always_equal;
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//! An integral constant with member `value == true`
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typedef BOOST_CONTAINER_IMPDEF(container_detail::bool_<true>) is_partially_propagable;
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BOOST_CONTAINER_DOCIGN(typedef container_detail::version_type<small_vector_allocator BOOST_CONTAINER_I 1> version;)
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//!Obtains an small_vector_allocator that allocates
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//!objects of type T2
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template<class T2>
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struct rebind
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{
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typedef typename allocator_traits<Allocator>::template rebind_alloc<T2>::type other;
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};
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#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) || defined(BOOST_CONTAINER_DOXYGEN_INVOKED)
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//!Constructor from arbitrary arguments
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template<class ...Args>
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BOOST_CONTAINER_FORCEINLINE explicit small_vector_allocator(BOOST_FWD_REF(Args) ...args)
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: Allocator(::boost::forward<Args>(args)...)
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{}
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#else
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#define BOOST_CONTAINER_SMALL_VECTOR_ALLOCATOR_CTOR_CODE(N) \
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BOOST_MOVE_TMPL_LT##N BOOST_MOVE_CLASS##N BOOST_MOVE_GT##N \
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BOOST_CONTAINER_FORCEINLINE explicit small_vector_allocator(BOOST_MOVE_UREF##N)\
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: Allocator(BOOST_MOVE_FWD##N)\
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{}\
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//
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BOOST_MOVE_ITERATE_0TO9(BOOST_CONTAINER_SMALL_VECTOR_ALLOCATOR_CTOR_CODE)
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#undef BOOST_CONTAINER_SMALL_VECTOR_ALLOCATOR_CTOR_CODE
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#endif
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//!Constructor from other small_vector_allocator.
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//!Never throws
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BOOST_CONTAINER_FORCEINLINE small_vector_allocator
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(const small_vector_allocator &other) BOOST_NOEXCEPT_OR_NOTHROW
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: Allocator(other.as_base())
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{}
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//!Move constructor from small_vector_allocator.
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//!Never throws
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BOOST_CONTAINER_FORCEINLINE small_vector_allocator
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(BOOST_RV_REF(small_vector_allocator) other) BOOST_NOEXCEPT_OR_NOTHROW
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: Allocator(::boost::move(other.as_base()))
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{}
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//!Constructor from related small_vector_allocator.
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//!Never throws
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template<class OtherAllocator>
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BOOST_CONTAINER_FORCEINLINE small_vector_allocator
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(const small_vector_allocator<OtherAllocator> &other) BOOST_NOEXCEPT_OR_NOTHROW
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: Allocator(other.as_base())
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{}
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//!Move constructor from related small_vector_allocator.
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//!Never throws
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template<class OtherAllocator>
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BOOST_CONTAINER_FORCEINLINE small_vector_allocator
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(BOOST_RV_REF(small_vector_allocator<OtherAllocator>) other) BOOST_NOEXCEPT_OR_NOTHROW
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: Allocator(::boost::move(other.as_base()))
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{}
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//!Assignment from other small_vector_allocator.
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//!Never throws
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BOOST_CONTAINER_FORCEINLINE small_vector_allocator &
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operator=(BOOST_COPY_ASSIGN_REF(small_vector_allocator) other) BOOST_NOEXCEPT_OR_NOTHROW
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{ return static_cast<small_vector_allocator&>(this->Allocator::operator=(other.as_base())); }
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//!Move constructor from other small_vector_allocator.
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//!Never throws
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BOOST_CONTAINER_FORCEINLINE small_vector_allocator &
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operator=(BOOST_RV_REF(small_vector_allocator) other) BOOST_NOEXCEPT_OR_NOTHROW
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{ return static_cast<small_vector_allocator&>(this->Allocator::operator=(::boost::move(other.as_base()))); }
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//!Assignment from related small_vector_allocator.
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//!Never throws
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template<class OtherAllocator>
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BOOST_CONTAINER_FORCEINLINE small_vector_allocator &
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operator=(BOOST_COPY_ASSIGN_REF(small_vector_allocator<OtherAllocator>) other) BOOST_NOEXCEPT_OR_NOTHROW
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{ return static_cast<small_vector_allocator&>(this->Allocator::operator=(other.as_base())); }
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//!Move assignment from related small_vector_allocator.
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//!Never throws
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template<class OtherAllocator>
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BOOST_CONTAINER_FORCEINLINE small_vector_allocator &
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operator=(BOOST_RV_REF(small_vector_allocator<OtherAllocator>) other) BOOST_NOEXCEPT_OR_NOTHROW
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{ return static_cast<small_vector_allocator&>(this->Allocator::operator=(::boost::move(other.as_base()))); }
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//!Allocates storage from the standard-conforming allocator
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BOOST_CONTAINER_FORCEINLINE pointer allocate(size_type count, const_void_pointer hint = const_void_pointer())
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{ return allocator_traits_type::allocate(this->as_base(), count, hint); }
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//!Deallocates previously allocated memory.
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//!Never throws
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void deallocate(pointer ptr, size_type n) BOOST_NOEXCEPT_OR_NOTHROW
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{
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if(!this->is_internal_storage(ptr))
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allocator_traits_type::deallocate(this->as_base(), ptr, n);
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}
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//!Returns the maximum number of elements that could be allocated.
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//!Never throws
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BOOST_CONTAINER_FORCEINLINE size_type max_size() const BOOST_NOEXCEPT_OR_NOTHROW
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{ return allocator_traits_type::max_size(this->as_base()); }
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small_vector_allocator select_on_container_copy_construction() const
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{ return small_vector_allocator(allocator_traits_type::select_on_container_copy_construction(this->as_base())); }
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bool storage_is_unpropagable(pointer p) const
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{ return this->is_internal_storage(p) || allocator_traits_type::storage_is_unpropagable(this->as_base(), p); }
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//!Swaps two allocators, does nothing
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//!because this small_vector_allocator is stateless
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BOOST_CONTAINER_FORCEINLINE friend void swap(small_vector_allocator &l, small_vector_allocator &r) BOOST_NOEXCEPT_OR_NOTHROW
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{ boost::adl_move_swap(l.as_base(), r.as_base()); }
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//!An small_vector_allocator always compares to true, as memory allocated with one
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//!instance can be deallocated by another instance (except for unpropagable storage)
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BOOST_CONTAINER_FORCEINLINE friend bool operator==(const small_vector_allocator &l, const small_vector_allocator &r) BOOST_NOEXCEPT_OR_NOTHROW
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{ return allocator_traits_type::equal(l.as_base(), r.as_base()); }
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//!An small_vector_allocator always compares to false, as memory allocated with one
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//!instance can be deallocated by another instance
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BOOST_CONTAINER_FORCEINLINE friend bool operator!=(const small_vector_allocator &l, const small_vector_allocator &r) BOOST_NOEXCEPT_OR_NOTHROW
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{ return !(l == r); }
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#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
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/*
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//!An advanced function that offers in-place expansion shrink to fit and new allocation
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//!capabilities. Memory allocated with this function can only be deallocated with deallocate()
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//!or deallocate_many().
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//!This function is available only with Version == 2
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pointer allocation_command(allocation_type command,
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size_type limit_size,
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size_type &prefer_in_recvd_out_size,
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pointer &reuse)
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{ return allocator_traits_type::allocation_command(command, limit_size, prefer_in_recvd_out_size, reuse); }
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//!Returns maximum the number of objects the previously allocated memory
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//!pointed by p can hold.
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//!Memory must not have been allocated with
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//!allocate_one or allocate_individual.
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//!This function is available only with Version == 2
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size_type size(pointer p) const BOOST_NOEXCEPT_OR_NOTHROW
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{ return allocator_traits_type::size(p); }
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*/
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private:
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/*
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//!Allocates just one object. Memory allocated with this function
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//!must be deallocated only with deallocate_one().
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//!Throws bad_alloc if there is no enough memory
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//!This function is available only with Version == 2
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using Allocator::allocate_one;
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using Allocator::allocate_individual;
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using Allocator::deallocate_one;
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using Allocator::deallocate_individual;
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using Allocator::allocate_many;
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using Allocator::deallocate_many;*/
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BOOST_CONTAINER_FORCEINLINE bool is_internal_storage(pointer p) const
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{ return this->internal_storage() == p; }
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pointer internal_storage() const
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{
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typedef typename Allocator::value_type value_type;
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typedef container_detail::vector_alloc_holder< small_vector_allocator<Allocator> > vector_alloc_holder_t;
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typedef vector<value_type, small_vector_allocator<Allocator> > vector_base;
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typedef small_vector_base<value_type, Allocator> derived_type;
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//
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const vector_alloc_holder_t &v_holder = static_cast<const vector_alloc_holder_t &>(*this);
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const vector_base &v_base = reinterpret_cast<const vector_base &>(v_holder);
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const derived_type &d_base = static_cast<const derived_type &>(v_base);
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return d_base.internal_storage();
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}
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#endif //#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
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};
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//! This class consists of common code from all small_vector<T, N> types that don't depend on the
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//! "N" template parameter. This class is non-copyable and non-destructible, so this class typically
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//! used as reference argument to functions that read or write small vectors. Since `small_vector<T, N>`
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//! derives from `small_vector_base<T>`, the conversion to `small_vector_base` is implicit
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//! <pre>
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//!
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//! //Clients can pass any small_vector<Foo, N>.
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//! void read_any_small_vector_of_foo(const small_vector_base<Foo> &in_parameter);
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//!
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//! void modify_any_small_vector_of_foo(small_vector_base<Foo> &in_out_parameter);
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//!
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//! void some_function()
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//! {
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//!
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//! small_vector<Foo, 8> myvector;
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//!
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//! read_any_small_vector_of_foo(myvector); // Reads myvector
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//!
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//! modify_any_small_vector_of_foo(myvector); // Modifies myvector
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//!
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//! }
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//! </pre>
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//!
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//! All `boost::container:vector` member functions are inherited. See `vector` documentation for details.
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//!
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template <class T, class SecondaryAllocator>
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class small_vector_base
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: public vector<T, small_vector_allocator<SecondaryAllocator> >
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{
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#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
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public:
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//Make it public as it will be inherited by small_vector and container
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//must have this public member
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typedef typename allocator_traits<SecondaryAllocator>::pointer pointer;
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private:
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BOOST_COPYABLE_AND_MOVABLE(small_vector_base)
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||||||
|
friend class small_vector_allocator<SecondaryAllocator>;
|
||||||
|
|
||||||
|
pointer internal_storage() const BOOST_NOEXCEPT_OR_NOTHROW
|
||||||
|
{
|
||||||
|
return boost::intrusive::pointer_traits<pointer>::pointer_to
|
||||||
|
(*const_cast<T*>(static_cast<const T*>(static_cast<const void*>(&m_storage_start))));
|
||||||
|
}
|
||||||
|
|
||||||
|
typedef vector<T, small_vector_allocator<SecondaryAllocator> > base_type;
|
||||||
|
base_type &as_base() { return static_cast<base_type&>(*this); }
|
||||||
|
const base_type &as_base() const { return static_cast<const base_type&>(*this); }
|
||||||
|
|
||||||
|
public:
|
||||||
|
typedef typename container_detail::aligned_storage
|
||||||
|
<sizeof(T), container_detail::alignment_of<T>::value>::type storage_type;
|
||||||
|
typedef small_vector_allocator<SecondaryAllocator> allocator_type;
|
||||||
|
|
||||||
|
protected:
|
||||||
|
typedef typename base_type::initial_capacity_t initial_capacity_t;
|
||||||
|
|
||||||
|
BOOST_CONTAINER_FORCEINLINE explicit small_vector_base(initial_capacity_t, std::size_t initial_capacity)
|
||||||
|
: base_type(initial_capacity_t(), this->internal_storage(), initial_capacity)
|
||||||
|
{}
|
||||||
|
|
||||||
|
template<class AllocFwd>
|
||||||
|
BOOST_CONTAINER_FORCEINLINE explicit small_vector_base(initial_capacity_t, std::size_t capacity, BOOST_FWD_REF(AllocFwd) a)
|
||||||
|
: base_type(initial_capacity_t(), this->internal_storage(), capacity, ::boost::forward<AllocFwd>(a))
|
||||||
|
{}
|
||||||
|
|
||||||
|
//~small_vector_base(){}
|
||||||
|
|
||||||
|
private:
|
||||||
|
//The only member
|
||||||
|
storage_type m_storage_start;
|
||||||
|
|
||||||
|
#endif //#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
|
||||||
|
|
||||||
|
public:
|
||||||
|
BOOST_CONTAINER_FORCEINLINE small_vector_base& operator=(BOOST_COPY_ASSIGN_REF(small_vector_base) other)
|
||||||
|
{ return static_cast<small_vector_base&>(this->base_type::operator=(static_cast<base_type const&>(other))); }
|
||||||
|
|
||||||
|
BOOST_CONTAINER_FORCEINLINE small_vector_base& operator=(BOOST_RV_REF(small_vector_base) other)
|
||||||
|
{ return static_cast<small_vector_base&>(this->base_type::operator=(BOOST_MOVE_BASE(base_type, other))); }
|
||||||
|
|
||||||
|
BOOST_CONTAINER_FORCEINLINE void swap(small_vector_base &other)
|
||||||
|
{ return this->base_type::swap(other); }
|
||||||
|
|
||||||
|
#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
|
||||||
|
protected:
|
||||||
|
void move_construct_impl(base_type &x, const allocator_type &a)
|
||||||
|
{
|
||||||
|
if(base_type::is_propagable_from(x.get_stored_allocator(), x.data(), a, true)){
|
||||||
|
this->steal_resources(x);
|
||||||
|
}
|
||||||
|
else{
|
||||||
|
this->assign( boost::make_move_iterator(container_detail::iterator_to_raw_pointer(x.begin()))
|
||||||
|
, boost::make_move_iterator(container_detail::iterator_to_raw_pointer(x.end ()))
|
||||||
|
);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
#endif //#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
|
||||||
|
};
|
||||||
|
|
||||||
|
#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
|
||||||
|
|
||||||
|
/////////////////////////////////////////////////////
|
||||||
|
//
|
||||||
|
// small_vector_storage_calculator
|
||||||
|
//
|
||||||
|
/////////////////////////////////////////////////////
|
||||||
|
template<std::size_t Needed, std::size_t Hdr, std::size_t SSize, bool NeedsZero = (0u == Needed || Needed <= Hdr)>
|
||||||
|
struct small_vector_storage_calculator_helper
|
||||||
|
{
|
||||||
|
static const std::size_t value = (Needed - Hdr - 1u)/SSize + 1u;
|
||||||
|
};
|
||||||
|
|
||||||
|
template<std::size_t Needed, std::size_t Hdr, std::size_t SSize>
|
||||||
|
struct small_vector_storage_calculator_helper<Needed, Hdr, SSize, true>
|
||||||
|
{
|
||||||
|
static const std::size_t value = 0u;
|
||||||
|
};
|
||||||
|
|
||||||
|
template<class Storage, class Allocator, class T, std::size_t N>
|
||||||
|
struct small_vector_storage_calculator
|
||||||
|
{
|
||||||
|
typedef small_vector_base<T, Allocator> svh_type;
|
||||||
|
typedef vector<T, small_vector_allocator<Allocator> > svhb_type;
|
||||||
|
static const std::size_t s_align = container_detail::alignment_of<Storage>::value;
|
||||||
|
static const std::size_t s_size = sizeof(Storage);
|
||||||
|
static const std::size_t svh_sizeof = sizeof(svh_type);
|
||||||
|
static const std::size_t svhb_sizeof = sizeof(svhb_type);
|
||||||
|
static const std::size_t s_start = ((svhb_sizeof-1)/s_align+1)*s_align;
|
||||||
|
static const std::size_t header_bytes = svh_sizeof-s_start;
|
||||||
|
static const std::size_t needed_bytes = sizeof(T)*N;
|
||||||
|
static const std::size_t needed_extra_storages =
|
||||||
|
small_vector_storage_calculator_helper<needed_bytes, header_bytes, s_size>::value;
|
||||||
|
};
|
||||||
|
|
||||||
|
/////////////////////////////////////////////////////
|
||||||
|
//
|
||||||
|
// small_vector_storage_definer
|
||||||
|
//
|
||||||
|
/////////////////////////////////////////////////////
|
||||||
|
template<class Storage, std::size_t N>
|
||||||
|
struct small_vector_storage
|
||||||
|
{
|
||||||
|
Storage m_rest_of_storage[N];
|
||||||
|
};
|
||||||
|
|
||||||
|
template<class Storage>
|
||||||
|
struct small_vector_storage<Storage, 0>
|
||||||
|
{};
|
||||||
|
|
||||||
|
template<class Allocator, std::size_t N>
|
||||||
|
struct small_vector_storage_definer
|
||||||
|
{
|
||||||
|
typedef typename Allocator::value_type value_type;
|
||||||
|
typedef typename small_vector_base<value_type, Allocator>::storage_type storage_type;
|
||||||
|
static const std::size_t needed_extra_storages =
|
||||||
|
small_vector_storage_calculator<storage_type, Allocator, value_type, N>::needed_extra_storages;
|
||||||
|
typedef small_vector_storage<storage_type, needed_extra_storages> type;
|
||||||
|
};
|
||||||
|
|
||||||
|
#endif //#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
|
||||||
|
|
||||||
|
//! small_vector is a vector-like container optimized for the case when it contains few elements.
|
||||||
|
//! It contains some preallocated elements in-place, which can avoid the use of dynamic storage allocation
|
||||||
|
//! when the actual number of elements is below that preallocated threshold.
|
||||||
|
//!
|
||||||
|
//! `small_vector<T, N, Allocator>` is convertible to `small_vector_base<T, Allocator>` that is independent
|
||||||
|
//! from the preallocated element capacity, so client code does not need to be templated on that N argument.
|
||||||
|
//!
|
||||||
|
//! All `boost::container::vector` member functions are inherited. See `vector` documentation for details.
|
||||||
|
//!
|
||||||
|
//! \tparam T The type of object that is stored in the small_vector
|
||||||
|
//! \tparam N The number of preallocated elements stored inside small_vector. It shall be less than Allocator::max_size();
|
||||||
|
//! \tparam Allocator The allocator used for memory management when the number of elements exceeds N.
|
||||||
|
template <class T, std::size_t N, class Allocator BOOST_CONTAINER_DOCONLY(= new_allocator<T>) >
|
||||||
|
class small_vector : public small_vector_base<T, Allocator>
|
||||||
|
#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
|
||||||
|
, private small_vector_storage_definer<Allocator, N>::type
|
||||||
|
#endif
|
||||||
|
{
|
||||||
|
#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
|
||||||
|
typedef small_vector_base<T, Allocator> base_type;
|
||||||
|
typedef typename small_vector_storage_definer<Allocator, N>::type remaining_storage_holder;
|
||||||
|
|
||||||
|
BOOST_COPYABLE_AND_MOVABLE(small_vector)
|
||||||
|
|
||||||
|
typedef typename base_type::initial_capacity_t initial_capacity_t;
|
||||||
|
typedef allocator_traits<typename base_type::allocator_type> allocator_traits_type;
|
||||||
|
|
||||||
|
public:
|
||||||
|
typedef small_vector_storage_calculator< typename small_vector_base<T, Allocator>
|
||||||
|
::storage_type, Allocator, T, N> storage_test;
|
||||||
|
|
||||||
|
static const std::size_t needed_extra_storages = storage_test::needed_extra_storages;
|
||||||
|
static const std::size_t needed_bytes = storage_test::needed_bytes;
|
||||||
|
static const std::size_t header_bytes = storage_test::header_bytes;
|
||||||
|
static const std::size_t s_start = storage_test::s_start;
|
||||||
|
|
||||||
|
typedef typename base_type::allocator_type allocator_type;
|
||||||
|
typedef typename base_type::size_type size_type;
|
||||||
|
typedef typename base_type::value_type value_type;
|
||||||
|
|
||||||
|
BOOST_CONTAINER_FORCEINLINE static std::size_t internal_capacity()
|
||||||
|
{ return (sizeof(small_vector) - storage_test::s_start)/sizeof(T); }
|
||||||
|
|
||||||
|
#endif //#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
|
||||||
|
|
||||||
|
//! @brief The capacity/max size of the container
|
||||||
|
static const size_type static_capacity = N;
|
||||||
|
|
||||||
|
public:
|
||||||
|
BOOST_CONTAINER_FORCEINLINE small_vector()
|
||||||
|
BOOST_NOEXCEPT_IF(container_detail::is_nothrow_default_constructible<Allocator>::value)
|
||||||
|
: base_type(initial_capacity_t(), internal_capacity())
|
||||||
|
{}
|
||||||
|
|
||||||
|
BOOST_CONTAINER_FORCEINLINE explicit small_vector(const allocator_type &a)
|
||||||
|
: base_type(initial_capacity_t(), internal_capacity(), a)
|
||||||
|
{}
|
||||||
|
|
||||||
|
BOOST_CONTAINER_FORCEINLINE explicit small_vector(size_type n)
|
||||||
|
: base_type(initial_capacity_t(), internal_capacity())
|
||||||
|
{ this->resize(n); }
|
||||||
|
|
||||||
|
BOOST_CONTAINER_FORCEINLINE small_vector(size_type n, const allocator_type &a)
|
||||||
|
: base_type(initial_capacity_t(), internal_capacity(), a)
|
||||||
|
{ this->resize(n); }
|
||||||
|
|
||||||
|
BOOST_CONTAINER_FORCEINLINE small_vector(size_type n, default_init_t)
|
||||||
|
: base_type(initial_capacity_t(), internal_capacity())
|
||||||
|
{ this->resize(n, default_init_t()); }
|
||||||
|
|
||||||
|
BOOST_CONTAINER_FORCEINLINE small_vector(size_type n, default_init_t, const allocator_type &a)
|
||||||
|
: base_type(initial_capacity_t(), internal_capacity(), a)
|
||||||
|
{ this->resize(n, default_init_t()); }
|
||||||
|
|
||||||
|
BOOST_CONTAINER_FORCEINLINE small_vector(size_type n, const value_type &v)
|
||||||
|
: base_type(initial_capacity_t(), internal_capacity())
|
||||||
|
{ this->resize(n, v); }
|
||||||
|
|
||||||
|
BOOST_CONTAINER_FORCEINLINE small_vector(size_type n, const value_type &v, const allocator_type &a)
|
||||||
|
: base_type(initial_capacity_t(), internal_capacity(), a)
|
||||||
|
{ this->resize(n, v); }
|
||||||
|
|
||||||
|
template <class InIt>
|
||||||
|
BOOST_CONTAINER_FORCEINLINE small_vector(InIt first, InIt last
|
||||||
|
BOOST_CONTAINER_DOCIGN(BOOST_MOVE_I typename container_detail::disable_if_c
|
||||||
|
< container_detail::is_convertible<InIt BOOST_MOVE_I size_type>::value
|
||||||
|
BOOST_MOVE_I container_detail::nat >::type * = 0)
|
||||||
|
)
|
||||||
|
: base_type(initial_capacity_t(), internal_capacity())
|
||||||
|
{ this->assign(first, last); }
|
||||||
|
|
||||||
|
template <class InIt>
|
||||||
|
BOOST_CONTAINER_FORCEINLINE small_vector(InIt first, InIt last, const allocator_type& a
|
||||||
|
BOOST_CONTAINER_DOCIGN(BOOST_MOVE_I typename container_detail::disable_if_c
|
||||||
|
< container_detail::is_convertible<InIt BOOST_MOVE_I size_type>::value
|
||||||
|
BOOST_MOVE_I container_detail::nat >::type * = 0)
|
||||||
|
)
|
||||||
|
: base_type(initial_capacity_t(), internal_capacity(), a)
|
||||||
|
{ this->assign(first, last); }
|
||||||
|
|
||||||
|
BOOST_CONTAINER_FORCEINLINE small_vector(const small_vector &other)
|
||||||
|
: base_type( initial_capacity_t(), internal_capacity()
|
||||||
|
, allocator_traits_type::select_on_container_copy_construction(other.get_stored_allocator()))
|
||||||
|
{ this->assign(other.cbegin(), other.cend()); }
|
||||||
|
|
||||||
|
BOOST_CONTAINER_FORCEINLINE small_vector(const small_vector &other, const allocator_type &a)
|
||||||
|
: base_type(initial_capacity_t(), internal_capacity(), a)
|
||||||
|
{ this->assign(other.cbegin(), other.cend()); }
|
||||||
|
|
||||||
|
BOOST_CONTAINER_FORCEINLINE explicit small_vector(const base_type &other)
|
||||||
|
: base_type( initial_capacity_t(), internal_capacity()
|
||||||
|
, allocator_traits_type::select_on_container_copy_construction(other.get_stored_allocator()))
|
||||||
|
{ this->assign(other.cbegin(), other.cend()); }
|
||||||
|
|
||||||
|
BOOST_CONTAINER_FORCEINLINE explicit small_vector(BOOST_RV_REF(base_type) other)
|
||||||
|
: base_type(initial_capacity_t(), internal_capacity(), ::boost::move(other.get_stored_allocator()))
|
||||||
|
{ this->move_construct_impl(other, other.get_stored_allocator()); }
|
||||||
|
|
||||||
|
BOOST_CONTAINER_FORCEINLINE small_vector(BOOST_RV_REF(small_vector) other)
|
||||||
|
: base_type(initial_capacity_t(), internal_capacity(), ::boost::move(other.get_stored_allocator()))
|
||||||
|
{ this->move_construct_impl(other, other.get_stored_allocator()); }
|
||||||
|
|
||||||
|
BOOST_CONTAINER_FORCEINLINE small_vector(BOOST_RV_REF(small_vector) other, const allocator_type &a)
|
||||||
|
: base_type(initial_capacity_t(), internal_capacity(), a)
|
||||||
|
{ this->move_construct_impl(other, a); }
|
||||||
|
|
||||||
|
#if !defined(BOOST_NO_CXX11_HDR_INITIALIZER_LIST)
|
||||||
|
BOOST_CONTAINER_FORCEINLINE small_vector(std::initializer_list<value_type> il, const allocator_type& a = allocator_type())
|
||||||
|
: base_type(initial_capacity_t(), internal_capacity(), a)
|
||||||
|
{
|
||||||
|
this->assign(il.begin(), il.end());
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
|
BOOST_CONTAINER_FORCEINLINE small_vector& operator=(BOOST_COPY_ASSIGN_REF(small_vector) other)
|
||||||
|
{ return static_cast<small_vector&>(this->base_type::operator=(static_cast<base_type const&>(other))); }
|
||||||
|
|
||||||
|
BOOST_CONTAINER_FORCEINLINE small_vector& operator=(BOOST_RV_REF(small_vector) other)
|
||||||
|
{ return static_cast<small_vector&>(this->base_type::operator=(BOOST_MOVE_BASE(base_type, other))); }
|
||||||
|
|
||||||
|
BOOST_CONTAINER_FORCEINLINE small_vector& operator=(const base_type &other)
|
||||||
|
{ return static_cast<small_vector&>(this->base_type::operator=(other)); }
|
||||||
|
|
||||||
|
BOOST_CONTAINER_FORCEINLINE small_vector& operator=(BOOST_RV_REF(base_type) other)
|
||||||
|
{ return static_cast<small_vector&>(this->base_type::operator=(boost::move(other))); }
|
||||||
|
|
||||||
|
BOOST_CONTAINER_FORCEINLINE void swap(small_vector &other)
|
||||||
|
{ return this->base_type::swap(other); }
|
||||||
|
};
|
||||||
|
|
||||||
|
}}
|
||||||
|
|
||||||
|
#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
|
||||||
|
/*
|
||||||
|
namespace boost {
|
||||||
|
|
||||||
|
//!has_trivial_destructor_after_move<> == true_type
|
||||||
|
//!specialization for optimizations
|
||||||
|
template <class T, class Allocator>
|
||||||
|
struct has_trivial_destructor_after_move<boost::container::vector<T, Allocator> >
|
||||||
|
{
|
||||||
|
typedef typename ::boost::container::allocator_traits<Allocator>::pointer pointer;
|
||||||
|
static const bool value = ::boost::has_trivial_destructor_after_move<Allocator>::value &&
|
||||||
|
::boost::has_trivial_destructor_after_move<pointer>::value;
|
||||||
|
};
|
||||||
|
|
||||||
|
}
|
||||||
|
*/
|
||||||
|
#endif //#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
|
||||||
|
|
||||||
|
#include <boost/container/detail/config_end.hpp>
|
||||||
|
|
||||||
|
#endif // #ifndef BOOST_CONTAINER_CONTAINER_SMALL_VECTOR_HPP
|
||||||
|
|
@ -1,6 +1,7 @@
|
||||||
bcp ^
|
bcp ^
|
||||||
boost/container/flat_map.hpp ^
|
boost/container/flat_map.hpp ^
|
||||||
boost/container/flat_set.hpp ^
|
boost/container/flat_set.hpp ^
|
||||||
|
boost/container/small_vector.hpp ^
|
||||||
boost/container/static_vector.hpp ^
|
boost/container/static_vector.hpp ^
|
||||||
boost/crc.hpp ^
|
boost/crc.hpp ^
|
||||||
boost/icl/interval_map.hpp ^
|
boost/icl/interval_map.hpp ^
|
||||||
|
|
|
||||||
Loading…
Reference in a new issue