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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
// ==++==
//
//
//
// ==--==
/*XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
XX XX
XX allocator<T> XX
XX XX
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
*/
#pragma once
#include "iallocator.h"
#include "new.h"
namespace jitstd
{
template <typename T>
class allocator;
template <>
class allocator<void>
{
public:
typedef size_t size_type;
typedef ptrdiff_t difference_type;
typedef void* pointer;
typedef const void* const_pointer;
typedef void value_type;
template <typename U>
struct rebind
{
typedef allocator<U> allocator;
};
private:
allocator();
public:
inline allocator(IAllocator* pAlloc);
template <typename U>
inline allocator(const allocator<U>& alloc);
inline allocator(const allocator& alloc);
template <typename U>
inline allocator& operator=(const allocator<U>& alloc);
private:
IAllocator* m_pAlloc;
template <typename U>
friend class allocator;
};
allocator<void>::allocator(IAllocator* pAlloc)
: m_pAlloc(pAlloc)
{
}
allocator<void>::allocator(const allocator& alloc)
: m_pAlloc(alloc.m_pAlloc)
{
}
template <typename U>
allocator<void>::allocator(const allocator<U>& alloc)
: m_pAlloc(alloc.m_pAlloc)
{
}
template <typename U>
allocator<void>& allocator<void>::operator=(const allocator<U>& alloc)
{
m_pAlloc = alloc.m_pAlloc;
return *this;
}
template <typename T>
class allocator
{
public:
typedef size_t size_type;
typedef ptrdiff_t difference_type;
typedef T* pointer;
typedef T& reference;
typedef const T* const_pointer;
typedef const T& const_reference;
typedef T value_type;
private:
allocator();
public:
allocator(IAllocator* pAlloc);
template <typename U>
allocator(const allocator<U>& alloc);
allocator(const allocator& alloc);
template <typename U>
allocator& operator=(const allocator<U>& alloc);
pointer address(reference val);
const_pointer address(const_reference val) const;
pointer allocate(size_type count, allocator<void>::const_pointer hint = nullptr);
void construct(pointer ptr, const_reference val);
void deallocate(pointer ptr, size_type size);
void destroy(pointer ptr);
size_type max_size() const;
template <typename U>
struct rebind
{
typedef allocator<U> allocator;
};
private:
IAllocator* m_pAlloc;
template <typename U>
friend class allocator;
};
} // end of namespace jitstd
namespace jitstd
{
template <typename T>
allocator<T>::allocator(IAllocator* pAlloc)
: m_pAlloc(pAlloc)
{
}
template <typename T>
template <typename U>
allocator<T>::allocator(const allocator<U>& alloc)
: m_pAlloc(alloc.m_pAlloc)
{
}
template <typename T>
allocator<T>::allocator(const allocator<T>& alloc)
: m_pAlloc(alloc.m_pAlloc)
{
}
template <typename T>
template <typename U>
allocator<T>& allocator<T>::operator=(const allocator<U>& alloc)
{
m_pAlloc = alloc.m_pAlloc;
return *this;
}
template <typename T>
typename allocator<T>::pointer allocator<T>::address(reference val)
{
return &val;
}
template <typename T>
typename allocator<T>::const_pointer allocator<T>::address(const_reference val) const
{
return &val;
}
template <typename T>
T* allocator<T>::allocate(size_type count, allocator<void>::const_pointer hint)
{
return (pointer) m_pAlloc->Alloc(sizeof(value_type) * count);
}
template <typename T>
void allocator<T>::construct(pointer ptr, const_reference val)
{
new (ptr, placement_t()) value_type(val);
}
template <typename T>
void allocator<T>::deallocate(pointer ptr, size_type size)
{
// m_pAlloc->Free(ptr);
}
template <typename T>
void allocator<T>::destroy(pointer ptr)
{
ptr->~T();
}
template <typename T>
typename allocator<T>::size_type allocator<T>::max_size() const
{
return (size_type) -1;
}
} // end of namespace jitstd
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