get a uniformly distributed random number in swift

To get a uniformly distributed random number in Swift, you can use the arc4random_uniform() function from the Foundation library. This function generates a random number between 0 and a specified upper bound (exclusive) and returns it as a UInt32. You can then convert this number to the desired data type using standard Swift type conversion methods.

Here's an example of how to generate a random CGFloat between 0 and 1 using arc4random_uniform():

main.swift
let randomFloat = CGFloat(arc4random_uniform(UInt32.max)) / CGFloat(UInt32.max)
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In this example, arc4random_uniform(UInt32.max) generates a random UInt32 between 0 and UInt32.max (which is the largest possible value for a UInt32). This value is then converted to a CGFloat and divided by UInt32.max, which normalizes the value to be between 0 and 1. The result is a random CGFloat with a uniform distribution.