generate a random boolean in swift

To generate a random boolean in Swift, we can use the arc4random_uniform function to generate a random number and then check if it is even or odd. If it's even, return true, and if it's odd, return false. Here's an example implementation:

main.swift
func randomBool() -> Bool {
    let random = arc4random_uniform(2)
    return random % 2 == 0
}
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In this implementation, arc4random_uniform(2) generates a random number between 0 and 1, which we then check to see if it's even or odd. If it's even, we return true, and if it's odd, we return false.

Note that this method generates a random boolean with equal probability of true or false. If you need to adjust the probability, you can modify the implementation to return true or false based on a probability distribution.