Created
July 27, 2015 20:10
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| //: Recipe X-1 | |
| //: Numbers that can be represented as Double instances | |
| public protocol DoubleRepresentable { | |
| var doubleValue: Double {get} | |
| } | |
| //: Numbers that convert to other types | |
| public protocol ConvertibleNumberType: DoubleRepresentable {} | |
| public extension ConvertibleNumberType { | |
| public var floatValue: Float {get {return Float(doubleValue)}} | |
| public var intValue: Int {get {return lrint(doubleValue)}} | |
| public var CGFloatValue: CGFloat {get {return CGFloat(doubleValue)}} | |
| } | |
| // Double Representable Conformance | |
| extension Double: ConvertibleNumberType {public var doubleValue: Double {return self}} | |
| extension Int: ConvertibleNumberType {public var doubleValue: Double {return Double(self)}} | |
| extension CGFloat: ConvertibleNumberType {public var doubleValue: Double {return Double(self)}} | |
| extension Float: ConvertibleNumberType {public var doubleValue: Double {return Double(self)}} |
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I was wondering if you could spare a moment to look at my expansion on this snippet of yours (my gist). Do you still think this sort of thing is useful, asking for trouble, etc?
Gratitude.