blessingLopes

 func f <T: FloatingPoint> (_ p: T, _ x: T = 0.5) -> Bool{
    return p < x
}

blessingLopes

public protocol Selfie: CustomStringConvertible {}

extension Selfie {

  var description: String {
    let mirror = Mirror(reflecting: self)
    return "\(mirror.subjectType)( \(mirror.children.map({ "\($0!): \($1) "}).joinWithSeparator(", ")))"
   }
}