59 lines
1.4 KiB
C
59 lines
1.4 KiB
C
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// alloc.h
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//
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// Allocator that uses the process heap. new/delete gets confused across
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// the dll boundary
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//
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#pragma once
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#ifndef __ALLOC_H
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#define __ALLOC_H
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// TEMPLATE FUNCTION _Allocate
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template<class _Ty> inline
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_Ty _FARQ *_Heap_Allocate(_PDFT _N, _Ty _FARQ *)
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{if (_N < 0)
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_N = 0;
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return ((_Ty _FARQ *)HeapAlloc(GetProcessHeap(), 0,
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(_SIZT)_N * sizeof (_Ty))); }
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// TEMPLATE CLASS allocator
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template<class _Ty>
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class heap_allocator {
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public:
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typedef _SIZT size_type;
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typedef _PDFT difference_type;
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typedef _Ty _FARQ *pointer;
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typedef const _Ty _FARQ *const_pointer;
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typedef _Ty _FARQ& reference;
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typedef const _Ty _FARQ& const_reference;
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typedef _Ty value_type;
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pointer address(reference _X) const
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{return (&_X); }
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const_pointer address(const_reference _X) const
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{return (&_X); }
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pointer allocate(size_type _N, const void *)
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{return (_Heap_Allocate((difference_type)_N, (pointer)0)); }
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char _FARQ *_Charalloc(size_type _N)
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{return (_Heap_Allocate((difference_type)_N,
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(char _FARQ *)0)); }
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void deallocate(void _FARQ *_P, size_type)
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{ HeapFree(GetProcessHeap(), 0, _P); }
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void construct(pointer _P, const _Ty& _V)
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{_Construct(_P, _V); }
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void destroy(pointer _P)
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{_Destroy(_P); }
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_SIZT max_size() const
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{_SIZT _N = (_SIZT)(-1) / sizeof (_Ty);
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return (0 < _N ? _N : 1); }
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bool operator== (const heap_allocator& rhs)
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{ return true; }
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};
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#endif // __ALLOC_H
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