SplitFilter

Sequence+SplitFilter.swift

extension SequenceType {
    func ip_splitFilter(@noescape predicate: Generator.Element throws -> Bool) rethrows -> (passed: [Generator.Element], failed: [Generator.Element]) {
        var passed: [Generator.Element] = []
        var failed: [Generator.Element] = []
        
        try forEach { element in
            if try predicate(element) {
                passed.append(element)
            } else {
                failed.append(element)
            }
        }
        
        return (passed, failed)
    }
}