Thread: What is the faster way to add byte before each byte in char *

If I have a char* for example :

Code:

{0x01,0x02,0x03,0x04,0x05}

and I want to add 0x00 before each byte .

the result will be :

Code:

{0x00,0x01,0x00,0x02,0x00,0x03,0x00,0x04,0x00,0x05}

What is the faster way to do that ?