What is the Swift equivalent of C#/.NET/LINQ's Enumerable.All method?

Question

I want a function that applies a given function to a sequence and returns true iff the given function returns true for every element of the sequence, like Enumerable.All from th

Answer 1

Building up on Jon's answer: You can use contains() instead of an (explicit) loop:

extension SequenceType {
    func all(@noescape predicate: (Self.Generator.Element) throws -> Bool)
        rethrows -> Bool {
            return !(try contains { !(try predicate($0)) })
    }
}