What does string + int perform in C?

Question

I can\'t figure out this expression:

str + n

where char str[STRING_LENGTH] and int n.

I have worked a lot

Answer 1

str can be regarded as pointing to the memory address associated with a character sequence of length STRING_LENGTH. As such, c pointer arithmetic is being exploited in your statement str + n. What is is doing is pointing to the memory address of the n^th character in the character sequence.