How to convert ASCII value to a character in Objective-C?

Question

I was wondering if anyone has the following php function equivalents in Objective-C for iPhone development:

1. ord() # returns the ASCII value of the first charac

Answer 1

//char to int ASCII-code
char c = 'a';
int ascii_code = (int)c;

//int to char
int i = 65; // A
c = (char)i;