iOS Generate random number between -150 and 150

[Jeremy1026]

I am trying to generate a random number between -150 and 150, currently I know how to generate a random number that is either between 1 and 150 or -150 and 0. But I am having problems doing both.

xmove = [[NSNumber numberWithInt:1 + arc4random() % 151] integerValue];

 

[calculus]

I don't know anything about programming, but could you generate a random number between 0 and 300 and then subtract 150?

 

[Encryptic]

He posted this on another board, and I responded there as well.

But here's a code snippet of how to do it:

NSNumber *numResult = [NSNumber numberWithInt: (arc4random() % 300) - 150];