DynamicBuffer.h
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// Common/DynamicBuffer.h
#ifndef __COMMON_DYNAMICBUFFER_H
#define __COMMON_DYNAMICBUFFER_H
#include "Buffer.h"
template <class T> class CDynamicBuffer: public CBuffer<T>
{
void GrowLength(size_t size)
{
size_t delta;
if (this->_capacity > 64)
delta = this->_capacity / 4;
else if (this->_capacity > 8)
delta = 16;
else
delta = 4;
delta = MyMax(delta, size);
SetCapacity(this->_capacity + delta);
}
public:
CDynamicBuffer(): CBuffer<T>() {};
CDynamicBuffer(const CDynamicBuffer &buffer): CBuffer<T>(buffer) {};
CDynamicBuffer(size_t size): CBuffer<T>(size) {};
CDynamicBuffer& operator=(const CDynamicBuffer &buffer)
{
this->Free();
if(buffer._capacity > 0)
{
SetCapacity(buffer._capacity);
memmove(this->_items, buffer._items, buffer._capacity * sizeof(T));
}
return *this;
}
void EnsureCapacity(size_t capacity)
{
if (this->_capacity < capacity)
GrowLength(capacity - this->_capacity);
}
};
typedef CDynamicBuffer<char> CCharDynamicBuffer;
typedef CDynamicBuffer<wchar_t> CWCharDynamicBuffer;
typedef CDynamicBuffer<unsigned char> CByteDynamicBuffer;
#endif