is there anyway to increment exponentially in swift?

Question

I am trying to write a for loop, where I have to increment exponentially. I am using stride function but it won\'t work. Here\'s c++ code, I am trying to write a sw

Answer 1

Based on @MartinR answer, only improvement is readability of the call:

// Helper function declaration
func forgen(
    _ initial: T, // What we start with
    _ condition: @escaping (T) throws -> Bool, // What to check on each iteration
    _ change: @escaping (T) -> T?, // Change after each iteration
    _ iteration: (T) throws -> Void // Where actual work happens
    ) rethrows
{
    return try sequence(first: initial, next: change).prefix(while: condition).forEach(iteration)
}

// Usage:
forgen(1, { $0 <= high - low }, { 2 * $0 }) { m in
    print(m)
}
// Almost like in C/C++ code