How to convert ASCII value to a character in Objective-C?
I was wondering if anyone has the following php function equivalents in Objective-C for iPhone development:
- ord() # returns the ASCII value of the first character of a string.
- chr() # returns a character from the specified ASCII value.
Many thanks!
Answer
This is how you can work with ASCII values and NSString. Note that since NSString is working with unichars, there could be unexpected results for a non ASCII string.
// NSString to ASCII
NSString *string = @"A";
int asciiCode = [string characterAtIndex:0]; // 65
// ASCII to NSString
int asciiCode = 65;
NSString *string = [NSString stringWithFormat:@"%c", asciiCode]; // A