92 lines
2.3 KiB
C++
92 lines
2.3 KiB
C++
/*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Contributor(s): Peter Schlaile <peter@schlaile.de> 2005
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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/** \file memutil/MEM_Allocator.h
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* \ingroup memutil
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*/
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#ifndef __MEM_ALLOCATOR_H__
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#define __MEM_ALLOCATOR_H__
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#include <stddef.h>
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#include "guardedalloc/MEM_guardedalloc.h"
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template<typename _Tp>
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struct MEM_Allocator
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{
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typedef size_t size_type;
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typedef ptrdiff_t difference_type;
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typedef _Tp* pointer;
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typedef const _Tp* const_pointer;
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typedef _Tp& reference;
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typedef const _Tp& const_reference;
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typedef _Tp value_type;
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template<typename _Tp1>
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struct rebind {
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typedef MEM_Allocator<_Tp1> other;
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};
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MEM_Allocator() throw() {}
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MEM_Allocator(const MEM_Allocator&) throw() {}
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template<typename _Tp1>
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MEM_Allocator(const MEM_Allocator<_Tp1>) throw() { }
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~MEM_Allocator() throw() {}
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pointer address(reference __x) const { return &__x; }
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const_pointer address(const_reference __x) const { return &__x; }
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// NB: __n is permitted to be 0. The C++ standard says nothing
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// about what the return value is when __n == 0.
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_Tp* allocate(size_type __n, const void* = 0) {
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_Tp* __ret = NULL;
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if (__n)
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__ret = static_cast<_Tp*>(
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MEM_mallocN(__n * sizeof(_Tp),
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"STL MEM_Allocator"));
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return __ret;
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}
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// __p is not permitted to be a null pointer.
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void deallocate(pointer __p, size_type) {
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MEM_freeN(__p);
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}
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size_type max_size() const throw() {
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return size_t(-1) / sizeof(_Tp);
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}
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void construct(pointer __p, const _Tp& __val) {
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new(__p) _Tp(__val);
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}
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void destroy(pointer __p) {
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__p->~_Tp();
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}
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};
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#endif // __MEM_ALLOCATOR_H__
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