ref: ff94e7053df980111eb7f22a04e4c0cfd6b84c97
dir: /test/utils/InputStream.h/
#ifndef __INPUTSTREAM_H__
#define __INPUTSTREAM_H__
#include <cstddef>
struct InputStream {
virtual int read(void* ptr, size_t len) = 0;
};
#endif //__INPUTSTREAM_H__