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-rw-r--r--boost/smart_ptr/detail/array_allocator.hpp318
1 files changed, 0 insertions, 318 deletions
diff --git a/boost/smart_ptr/detail/array_allocator.hpp b/boost/smart_ptr/detail/array_allocator.hpp
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index 71479967bc..0000000000
--- a/boost/smart_ptr/detail/array_allocator.hpp
+++ /dev/null
@@ -1,318 +0,0 @@
-/*
- * Copyright (c) 2012-2014 Glen Joseph Fernandes
- * glenfe at live dot com
- *
- * Distributed under the Boost Software License,
- * Version 1.0. (See accompanying file LICENSE_1_0.txt
- * or copy at http://boost.org/LICENSE_1_0.txt)
- */
-#ifndef BOOST_SMART_PTR_DETAIL_ARRAY_ALLOCATOR_HPP
-#define BOOST_SMART_PTR_DETAIL_ARRAY_ALLOCATOR_HPP
-
-#include <boost/align/align.hpp>
-#include <boost/smart_ptr/detail/array_traits.hpp>
-#include <boost/smart_ptr/detail/array_utility.hpp>
-#include <boost/type_traits/alignment_of.hpp>
-
-namespace boost {
- namespace detail {
- struct ms_init_tag { };
- struct ms_noinit_tag { };
-
- template<class T>
- struct ms_allocator_state;
-
- template<class T>
- struct ms_allocator_state<T[]> {
- typedef typename array_base<T>::type type;
-
- ms_allocator_state(std::size_t size_,
- type** result_)
- : size(size_ * array_total<T>::size),
- result(result_) {
- }
-
- std::size_t size;
-
- union {
- type** result;
- type* object;
- };
- };
-
- template<class T, std::size_t N>
- struct ms_allocator_state<T[N]> {
- typedef typename array_base<T>::type type;
-
- ms_allocator_state(type** result_)
- : result(result_) {
- }
-
- enum {
- size = array_total<T[N]>::size
- };
-
- union {
- type** result;
- type* object;
- };
- };
-
- template<class A, class T, class R>
- class as_allocator
- : public A {
- template<class A_, class T_, class R_>
- friend class as_allocator;
-
-#if !defined(BOOST_NO_CXX11_ALLOCATOR)
- typedef std::allocator_traits<A> AT;
- typedef typename AT::template rebind_alloc<char> CA;
- typedef typename AT::template rebind_traits<char> CT;
-#else
- typedef typename A::template rebind<char>::other CA;
-#endif
-
- public:
- typedef A allocator_type;
-
-#if !defined(BOOST_NO_CXX11_ALLOCATOR)
- typedef typename AT::value_type value_type;
- typedef typename AT::pointer pointer;
- typedef typename AT::const_pointer const_pointer;
- typedef typename AT::void_pointer void_pointer;
- typedef typename AT::const_void_pointer const_void_pointer;
- typedef typename AT::size_type size_type;
- typedef typename AT::difference_type difference_type;
-#else
- typedef typename A::value_type value_type;
- typedef typename A::pointer pointer;
- typedef typename A::const_pointer const_pointer;
- typedef typename A::size_type size_type;
- typedef typename A::difference_type difference_type;
- typedef typename A::reference reference;
- typedef typename A::const_reference const_reference;
- typedef void* void_pointer;
- typedef const void* const_void_pointer;
-#endif
-
- template<class U>
- struct rebind {
-#if !defined(BOOST_NO_CXX11_ALLOCATOR)
- typedef as_allocator<typename AT::
- template rebind_alloc<U>, T, R> other;
-#else
- typedef as_allocator<typename A::
- template rebind<U>::other, T, R> other;
-#endif
- };
-
- typedef typename array_base<T>::type type;
-
- as_allocator(const A& allocator_, type** result)
- : A(allocator_),
- data(result) {
- }
-
- as_allocator(const A& allocator_, std::size_t size,
- type** result)
- : A(allocator_),
- data(size, result) {
- }
-
- template<class U>
- as_allocator(const as_allocator<U, T, R>& other)
- : A(other.allocator()),
- data(other.data) {
- }
-
- pointer allocate(size_type count, const_void_pointer = 0) {
- enum {
- M = boost::alignment_of<type>::value
- };
- std::size_t n1 = count * sizeof(value_type);
- std::size_t n2 = data.size * sizeof(type);
- std::size_t n3 = n2 + M;
- CA ca(allocator());
- void* p1 = ca.allocate(n1 + n3);
- void* p2 = static_cast<char*>(p1) + n1;
- (void)boost::alignment::align(M, n2, p2, n3);
- *data.result = static_cast<type*>(p2);
- return static_cast<value_type*>(p1);
- }
-
- void deallocate(pointer memory, size_type count) {
- enum {
- M = boost::alignment_of<type>::value
- };
- std::size_t n1 = count * sizeof(value_type);
- std::size_t n2 = data.size * sizeof(type) + M;
- char* p1 = reinterpret_cast<char*>(memory);
- CA ca(allocator());
- ca.deallocate(p1, n1 + n2);
- }
-
- const A& allocator() const {
- return static_cast<const A&>(*this);
- }
-
- A& allocator() {
- return static_cast<A&>(*this);
- }
-
- void set(type* memory) {
- data.object = memory;
- }
-
- void operator()() {
- if (data.object) {
- R tag;
- release(tag);
- }
- }
-
- private:
- void release(ms_init_tag) {
-#if !defined(BOOST_NO_CXX11_ALLOCATOR)
- as_destroy(allocator(), data.object, data.size);
-#else
- ms_destroy(data.object, data.size);
-#endif
- }
-
- void release(ms_noinit_tag) {
- ms_destroy(data.object, data.size);
- }
-
- ms_allocator_state<T> data;
- };
-
- template<class A1, class A2, class T, class R>
- bool operator==(const as_allocator<A1, T, R>& a1,
- const as_allocator<A2, T, R>& a2) {
- return a1.allocator() == a2.allocator();
- }
-
- template<class A1, class A2, class T, class R>
- bool operator!=(const as_allocator<A1, T, R>& a1,
- const as_allocator<A2, T, R>& a2) {
- return a1.allocator() != a2.allocator();
- }
-
- template<class T, class Y = char>
- class ms_allocator;
-
- template<class T, class Y>
- class ms_allocator {
- template<class T_, class Y_>
- friend class ms_allocator;
-
- public:
- typedef typename array_base<T>::type type;
-
- typedef Y value_type;
- typedef Y* pointer;
- typedef const Y* const_pointer;
- typedef std::size_t size_type;
- typedef std::ptrdiff_t difference_type;
- typedef Y& reference;
- typedef const Y& const_reference;
-
- template<class U>
- struct rebind {
- typedef ms_allocator<T, U> other;
- };
-
- ms_allocator(type** result)
- : data(result) {
- }
-
- ms_allocator(std::size_t size, type** result)
- : data(size, result) {
- }
-
- template<class U>
- ms_allocator(const ms_allocator<T, U>& other)
- : data(other.data) {
- }
-
- pointer allocate(size_type count, const void* = 0) {
- enum {
- M = boost::alignment_of<type>::value
- };
- std::size_t n1 = count * sizeof(Y);
- std::size_t n2 = data.size * sizeof(type);
- std::size_t n3 = n2 + M;
- void* p1 = ::operator new(n1 + n3);
- void* p2 = static_cast<char*>(p1) + n1;
- (void)boost::alignment::align(M, n2, p2, n3);
- *data.result = static_cast<type*>(p2);
- return static_cast<Y*>(p1);
- }
-
- void deallocate(pointer memory, size_type) {
- void* p1 = memory;
- ::operator delete(p1);
- }
-
-#if defined(BOOST_NO_CXX11_ALLOCATOR)
- pointer address(reference value) const {
- return &value;
- }
-
- const_pointer address(const_reference value) const {
- return &value;
- }
-
- size_type max_size() const {
- enum {
- N = static_cast<std::size_t>(-1) / sizeof(Y)
- };
- return N;
- }
-
- void construct(pointer memory, const_reference value) {
- void* p1 = memory;
- ::new(p1) Y(value);
- }
-
- void destroy(pointer memory) {
- (void)memory;
- memory->~Y();
- }
-#endif
-
- void set(type* memory) {
- data.object = memory;
- }
-
- void operator()() {
- if (data.object) {
- ms_destroy(data.object, data.size);
- }
- }
-
- private:
- ms_allocator_state<T> data;
- };
-
- template<class T, class Y1, class Y2>
- bool operator==(const ms_allocator<T, Y1>&,
- const ms_allocator<T, Y2>&) {
- return true;
- }
-
- template<class T, class Y1, class Y2>
- bool operator!=(const ms_allocator<T, Y1>&,
- const ms_allocator<T, Y2>&) {
- return false;
- }
-
- class ms_in_allocator_tag {
- public:
- void operator()(const void*) {
- }
- };
- }
-}
-
-#endif