IOS How to random int & float number

// Random int
+ (int)getRandomNumber:(int)from to:(int)to {       
    return (int)from + arc4random() % (to-from+1);
}

/* Random between from float to float */
+ (float)randomFloatBetween:(float)smallNumber and:(float)bigNumber {
    float diff = bigNumber - smallNumber;
    return (((float) rand() / RAND_MAX) * diff) + smallNumber;
}

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