Thread: byte array plus integer literal question

I am trying to understand what adding the literal integer values of 256 and 512 does to the byte array as described in the C code sample below which is a snippet from the Microsoft Permutative Encoding Algorithm for PST files. I am porting this to another language and want to understand what happens to the array when you add a literal to it, is it adding that value to all the elements in the array or is it causing a bit shift of some sort?

Code:

byte mpbbCrypt[] = { 65,  54,  19, ... }; // A byte array initialized with 256 values

#define mpbbR   (mpbbCrypt)
#define mpbbS   (mpbbCrypt + 256)
#define mpbbI    (mpbbCrypt + 512)

Thanks,
PC

Googlified: Pointer Arithmetic

Thanks, my mistake was assuming the crypt array only consisted of 256 elements when in fact there are 768 and the defined variables are just pointers into that array offset every 256 elements. My solution will be break the array into three separate smaller arrays of 256 to start with.