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objective-cios6arc4random

How to generate random numbers with arc4random?


I'm trying to generate random numbers from -50 to 50, but I don't know how to accomplish this task using arc4random.

Does anyone have any suggestions? Thank you!


Solution

  • You can get a random number up to 100 and substract 50. You will also need to cast it back to int, since arc4random its an unsigned type.

    (arc4random() % (101)) - 50