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/* SPDX-License-Identifier: GPL-2.0-or-later */
/** \file
* \ingroup intern_memutil
*/
#ifndef __MEM_ALLOCATOR_H__
#define __MEM_ALLOCATOR_H__
#include "guardedalloc/MEM_guardedalloc.h"
#include <stddef.h>
template<typename _Tp> struct MEM_Allocator {
typedef size_t size_type;
typedef ptrdiff_t difference_type;
typedef _Tp *pointer;
typedef const _Tp *const_pointer;
typedef _Tp &reference;
typedef const _Tp &const_reference;
typedef _Tp value_type;
template<typename _Tp1> struct rebind {
typedef MEM_Allocator<_Tp1> other;
};
MEM_Allocator() throw()
{
}
MEM_Allocator(const MEM_Allocator &) throw()
{
}
template<typename _Tp1> MEM_Allocator(const MEM_Allocator<_Tp1>) throw()
{
}
~MEM_Allocator() throw()
{
}
pointer address(reference __x) const
{
return &__x;
}
const_pointer address(const_reference __x) const
{
return &__x;
}
/* NOTE: `__n` is permitted to be 0.
* The C++ standard says nothing about what the return value is when `__n == 0`. */
_Tp *allocate(size_type __n, const void * = 0)
{
_Tp *__ret = NULL;
if (__n)
__ret = static_cast<_Tp *>(MEM_mallocN(__n * sizeof(_Tp), "STL MEM_Allocator"));
return __ret;
}
// __p is not permitted to be a null pointer.
void deallocate(pointer __p, size_type)
{
MEM_freeN(__p);
}
size_type max_size() const throw()
{
return size_t(-1) / sizeof(_Tp);
}
void construct(pointer __p, const _Tp &__val)
{
new (__p) _Tp(__val);
}
void destroy(pointer __p)
{
__p->~_Tp();
}
};
#endif // __MEM_ALLOCATOR_H__
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