title: How to turn a hex string into an unsigned char array?
body: <p>For example, I have a cstring <code>"E8 48 D8 FF FF 8B 0D"</code> (including spaces) which needs to be converted into the equivalent unsigned char array <code>{0xE8,0x48,0xD8,0xFF,0xFF,0x8B,0x0D}</code>. What's an efficient way to do this? Thanks!</p>
  
  <p>EDIT: I can't use the std library... so consider this a C question. I'm sorry!</p>