How to create a random float in Objective-C?

Question

I\'m trying to create a random float between 0.15 and 0.3 in Objective-C. The following code always returns 1:

int randn = (random() % 15)+15;
float pscale =         


        

Answer 1

I ended up generating to integers one for the actual integer and then an integer for the decimal. Then I join them in a string then I parse it to a floatvalue with the "floatValue" function... I couldn't find a better way and this works for my intentions, hope it helps :)

int integervalue = arc4random() % 2;
int decimalvalue = arc4random() % 9;   
NSString *floatString = [NSString stringWithFormat:@"%d.%d",integervalue,decimalvalue];
float randomFloat = [floatString floatValue];