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#pragma once
#include "idatastream.h"
namespace stream
{
/**
* A class implementing the InputStream interface around a simple byte pointer.
* No bounds or validity checking is performed on the given pointer.
*/
class PointerInputStream :
public InputStream
{
private:
const byte* _curPos;
public:
PointerInputStream(const byte* pointer) :
_curPos(pointer)
{}
std::size_t read(byte* buffer, std::size_t length) override
{
const byte* end = _curPos + length;
while (_curPos != end)
{
*buffer++ = *_curPos++;
}
return length;
}
void seek(std::size_t offset)
{
_curPos += offset;
}
const byte* get()
{
return _curPos;
}
};
}
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