C + + unsigned long translates to unsigned char*

C + + Code

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unsigned long lfilelen = 1000; unsigned char *ucfilelenflag; Ucfilelenflag = (unsigned char *) &lFileLen; Method One Method Two: Ucfilelenflag = new unsigned char [4];//array pointer UCFILELENFLAG[3] = ((unsigned char *) &lfilelen) [3]; Take the highest bit of I (long) UCFILELENFLAG[2] = ((unsigned char *) &lfilelen) [2]; UCFILELENFLAG[1] = ((unsigned char *) &lfilelen) [1]; Ucfilelenflag[0] = ((unsigned char *) &lfilelen) [0]; Take the lowest bit of I (long)

C + + unsigned long translates to unsigned char*