Foundation/NSNumber.swift - third_party/swift-corelibs-foundation - Git at Google

 // This source file is part of the Swift.org open source project
 //
 // Copyright (c) 2014 - 2016 Apple Inc. and the Swift project authors
 // Licensed under Apache License v2.0 with Runtime Library Exception
 //
 // See http://swift.org/LICENSE.txt for license information
 // See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
 //


 import CoreFoundation

 #if os(OSX) || os(iOS)
 internal let kCFNumberSInt8Type = CFNumberType.sInt8Type
 internal let kCFNumberSInt16Type = CFNumberType.sInt16Type
 internal let kCFNumberSInt32Type = CFNumberType.sInt32Type
 internal let kCFNumberSInt64Type = CFNumberType.sInt64Type
 internal let kCFNumberFloat32Type = CFNumberType.float32Type
 internal let kCFNumberFloat64Type = CFNumberType.float64Type
 internal let kCFNumberCharType = CFNumberType.charType
 internal let kCFNumberShortType = CFNumberType.shortType
 internal let kCFNumberIntType = CFNumberType.intType
 internal let kCFNumberLongType = CFNumberType.longType
 internal let kCFNumberLongLongType = CFNumberType.longLongType
 internal let kCFNumberFloatType = CFNumberType.floatType
 internal let kCFNumberDoubleType = CFNumberType.doubleType
 internal let kCFNumberCFIndexType = CFNumberType.cfIndexType
 internal let kCFNumberNSIntegerType = CFNumberType.nsIntegerType
 internal let kCFNumberCGFloatType = CFNumberType.cgFloatType
 #endif

 extension Int : _ObjectTypeBridgeable {
     public init(_ number: NSNumber) {
         self = number.intValue
     }

     public typealias _ObjectType = NSNumber
     public func _bridgeToObjectiveC() -> _ObjectType {
         return NSNumber(value: self)
     }

     static public func _forceBridgeFromObjectiveC(_ source: _ObjectType, result: inout Int?) {
         result = _unconditionallyBridgeFromObjectiveC(source)
     }

     @discardableResult
     static public func _conditionallyBridgeFromObjectiveC(_ source: _ObjectType, result: inout Int?) -> Bool {
         result = source.intValue
         return true
     }

     static public func _unconditionallyBridgeFromObjectiveC(_ source: _ObjectType?) -> Int {
         if let object = source {
             var value: Int?
             _conditionallyBridgeFromObjectiveC(object, result: &value)
             return value!
         } else {
             return 0
         }
     }
 }

 extension UInt : _ObjectTypeBridgeable {
     public init(_ number: NSNumber) {
         self = number.uintValue
     }

     public typealias _ObjectType = NSNumber
     public func _bridgeToObjectiveC() -> _ObjectType {
         return NSNumber(value: self)
     }

     static public func _forceBridgeFromObjectiveC(_ source: _ObjectType, result: inout UInt?) {
         result = _unconditionallyBridgeFromObjectiveC(source)
     }

     @discardableResult
     static public func _conditionallyBridgeFromObjectiveC(_ source: _ObjectType, result: inout UInt?) -> Bool {
         result = source.uintValue
         return true
     }

     static public func _unconditionallyBridgeFromObjectiveC(_ source: _ObjectType?) -> UInt {
         if let object = source {
             var value: UInt?
             _conditionallyBridgeFromObjectiveC(object, result: &value)
             return value!
         } else {
             return 0
         }
     }
 }

 extension Float : _ObjectTypeBridgeable {
     public init(_ number: NSNumber) {
         self = number.floatValue
     }

     public typealias _ObjectType = NSNumber
     public func _bridgeToObjectiveC() -> _ObjectType {
         return NSNumber(value: self)
     }

     static public func _forceBridgeFromObjectiveC(_ source: _ObjectType, result: inout Float?) {
         result = _unconditionallyBridgeFromObjectiveC(source)
     }

     @discardableResult
     static public func _conditionallyBridgeFromObjectiveC(_ source: _ObjectType, result: inout Float?) -> Bool {
         result = source.floatValue
         return true
     }

     static public func _unconditionallyBridgeFromObjectiveC(_ source: _ObjectType?) -> Float {
         if let object = source {
             var value: Float?
             _conditionallyBridgeFromObjectiveC(object, result: &value)
             return value!
         } else {
             return 0.0
         }
     }
 }

 extension Double : _ObjectTypeBridgeable {
     public init(_ number: NSNumber) {
         self = number.doubleValue
     }

     public typealias _ObjectType = NSNumber
     public func _bridgeToObjectiveC() -> _ObjectType {
         return NSNumber(value: self)
     }

     static public func _forceBridgeFromObjectiveC(_ source: _ObjectType, result: inout Double?) {
         result = _unconditionallyBridgeFromObjectiveC(source)
     }

     @discardableResult
     static public func _conditionallyBridgeFromObjectiveC(_ source: _ObjectType, result: inout Double?) -> Bool {
         result = source.doubleValue
         return true
     }

     static public func _unconditionallyBridgeFromObjectiveC(_ source: _ObjectType?) -> Double {
         if let object = source {
             var value: Double?
             _conditionallyBridgeFromObjectiveC(object, result: &value)
             return value!
         } else {
             return 0.0
         }
     }
 }

 extension Bool : _ObjectTypeBridgeable {
     public init(_ number: NSNumber) {
         self = number.boolValue
     }

     public typealias _ObjectType = NSNumber
     public func _bridgeToObjectiveC() -> _ObjectType {
         return NSNumber(value: self)
     }

     static public func _forceBridgeFromObjectiveC(_ source: _ObjectType, result: inout Bool?) {
         result = _unconditionallyBridgeFromObjectiveC(source)
     }

     @discardableResult
     static public func _conditionallyBridgeFromObjectiveC(_ source: _ObjectType, result: inout Bool?) -> Bool {
         result = source.boolValue
         return true
     }

     static public func _unconditionallyBridgeFromObjectiveC(_ source: _ObjectType?) -> Bool {
         if let object = source {
             var value: Bool?
             _conditionallyBridgeFromObjectiveC(object, result: &value)
             return value!
         } else {
             return false
         }
     }
 }

 extension Bool : _CFBridgeable {
     typealias CFType = CFBoolean
     var _cfObject: CFType {
         return self ? kCFBooleanTrue : kCFBooleanFalse
     }
 }

 extension NSNumber : ExpressibleByFloatLiteral, ExpressibleByIntegerLiteral, ExpressibleByBooleanLiteral {

 }

 open class NSNumber : NSValue {
     typealias CFType = CFNumber
     // This layout MUST be the same as CFNumber so that they are bridgeable
     private var _base = _CFInfo(typeID: CFNumberGetTypeID())
     private var _pad: UInt64 = 0

     internal var _cfObject: CFType {
         return unsafeBitCast(self, to: CFType.self)
     }

     open override var hash: Int {
         return Int(bitPattern: CFHash(_cfObject))
     }

     open override func isEqual(_ value: Any?) -> Bool {
         if let number = value as? Int {
             return intValue == number
         } else if let number = value as? Double {
             return doubleValue == number
         } else if let number = value as? Bool {
             return boolValue == number
         } else if let number = value as? NSNumber {
             return CFEqual(_cfObject, number._cfObject)
         }
         return false
     }

     deinit {
         _CFDeinit(self)
     }

     public init(value: Int8) {
         super.init()
         _CFNumberInitInt8(_cfObject, value)
     }

     public init(value: UInt8) {
         super.init()
         _CFNumberInitUInt8(_cfObject, value)
     }

     public init(value: Int16) {
         super.init()
         _CFNumberInitInt16(_cfObject, value)
     }

     public init(value: UInt16) {
         super.init()
         _CFNumberInitUInt16(_cfObject, value)
     }

     public init(value: Int32) {
         super.init()
         _CFNumberInitInt32(_cfObject, value)
     }

     public init(value: UInt32) {
         super.init()
         _CFNumberInitUInt32(_cfObject, value)
     }

     public init(value: Int) {
         super.init()
         _CFNumberInitInt(_cfObject, value)
     }

     public init(value: UInt) {
         super.init()
         _CFNumberInitUInt(_cfObject, value)
     }

     public init(value: Int64) {
         super.init()
         _CFNumberInitInt64(_cfObject, value)
     }

     public init(value: UInt64) {
         super.init()
         _CFNumberInitUInt64(_cfObject, value)
     }

     public init(value: Float) {
         super.init()
         _CFNumberInitFloat(_cfObject, value)
     }

     public init(value: Double) {
         super.init()
         _CFNumberInitDouble(_cfObject, value)
     }

     public init(value: Bool) {
         super.init()
         _CFNumberInitBool(_cfObject, value)
     }

     public required convenience init(bytes buffer: UnsafeRawPointer, objCType: UnsafePointer<Int8>) {
         guard let type = _NSSimpleObjCType(UInt8(objCType.pointee)) else {
             fatalError("NSNumber.init: unsupported type encoding spec '\(String(cString: objCType))'")
         }
         switch type {
         case .Bool:
             self.init(value:buffer.load(as: Bool.self))
             break
         case .Char:
             self.init(value:buffer.load(as: Int8.self))
             break
         case .UChar:
             self.init(value:buffer.load(as: UInt8.self))
             break
         case .Short:
             self.init(value:buffer.load(as: Int16.self))
             break
         case .UShort:
             self.init(value:buffer.load(as: UInt16.self))
             break
         case .Int, .Long:
             self.init(value:buffer.load(as: Int32.self))
             break
         case .UInt, .ULong:
             self.init(value:buffer.load(as: UInt32.self))
             break
         case .LongLong:
             self.init(value:buffer.load(as: Int64.self))
             break
         case .ULongLong:
             self.init(value:buffer.load(as: UInt64.self))
             break
         case .Float:
             self.init(value:buffer.load(as: Float.self))
             break
         case .Double:
             self.init(value:buffer.load(as: Double.self))
             break
         default:
             fatalError("NSNumber.init: unsupported type encoding spec '\(String(cString: objCType))'")
             break
         }
     }

     public required convenience init?(coder aDecoder: NSCoder) {
         guard aDecoder.allowsKeyedCoding else {
             preconditionFailure("Unkeyed coding is unsupported.")
         }
         if type(of: aDecoder) == NSKeyedUnarchiver.self || aDecoder.containsValue(forKey: "NS.number") {
             let number = aDecoder._decodePropertyListForKey("NS.number")
             if let val = number as? Double {
                 self.init(value:val)
             } else if let val = number as? Int {
                 self.init(value:val)
             } else if let val = number as? Bool {
                 self.init(value:val)
             } else {
                 return nil
             }
         } else {
             if aDecoder.containsValue(forKey: "NS.boolval") {
                 self.init(value: aDecoder.decodeBool(forKey: "NS.boolval"))
             } else if aDecoder.containsValue(forKey: "NS.intval") {
                 self.init(value: aDecoder.decodeInt64(forKey: "NS.intval"))
             } else if aDecoder.containsValue(forKey: "NS.dblval") {
                 self.init(value: aDecoder.decodeDouble(forKey: "NS.dblval"))
             } else {
                 return nil
             }
         }
     }

     open var int8Value: Int8 {
         var val: Int8 = 0
         withUnsafeMutablePointer(to: &val) { (value: UnsafeMutablePointer<Int8>) -> Void in
             CFNumberGetValue(_cfObject, kCFNumberCharType, value)
         }
         return val
     }

     open var uint8Value: UInt8 {
         var val: UInt8 = 0
         withUnsafeMutablePointer(to: &val) { (value: UnsafeMutablePointer<UInt8>) -> Void in
             CFNumberGetValue(_cfObject, kCFNumberCharType, value)
         }
         return val
     }

     open var int16Value: Int16 {
         var val: Int16 = 0
         withUnsafeMutablePointer(to: &val) { (value: UnsafeMutablePointer<Int16>) -> Void in
             CFNumberGetValue(_cfObject, kCFNumberShortType, value)
         }
         return val
     }

     open var uint16Value: UInt16 {
         var val: UInt16 = 0
         withUnsafeMutablePointer(to: &val) { (value: UnsafeMutablePointer<UInt16>) -> Void in
             CFNumberGetValue(_cfObject, kCFNumberShortType, value)
         }
         return val
     }

     open var int32Value: Int32 {
         var val: Int32 = 0
         withUnsafeMutablePointer(to: &val) { (value: UnsafeMutablePointer<Int32>) -> Void in
             CFNumberGetValue(_cfObject, kCFNumberIntType, value)
         }
         return val
     }

     open var uint32Value: UInt32 {
         var val: UInt32 = 0
         withUnsafeMutablePointer(to: &val) { (value: UnsafeMutablePointer<UInt32>) -> Void in
             CFNumberGetValue(_cfObject, kCFNumberIntType, value)
         }
         return val
     }

     open var int64Value: Int64 {
         var val: Int64 = 0
         withUnsafeMutablePointer(to: &val) { (value: UnsafeMutablePointer<Int64>) -> Void in
             CFNumberGetValue(_cfObject, kCFNumberLongLongType, value)
         }
         return val
     }

     open var uint64Value: UInt64 {
         var val: UInt64 = 0
         withUnsafeMutablePointer(to: &val) { (value: UnsafeMutablePointer<UInt64>) -> Void in
             CFNumberGetValue(_cfObject, kCFNumberLongLongType, value)
         }
         return val
     }

     open var floatValue: Float {
         var val: Float = 0
         withUnsafeMutablePointer(to: &val) { (value: UnsafeMutablePointer<Float>) -> Void in
             CFNumberGetValue(_cfObject, kCFNumberFloatType, value)
         }
         return val
     }

     open var doubleValue: Double {
         var val: Double = 0
         withUnsafeMutablePointer(to: &val) { (value: UnsafeMutablePointer<Double>) -> Void in
             CFNumberGetValue(_cfObject, kCFNumberDoubleType, value)
         }
         return val
     }

     open var boolValue: Bool {
         return int64Value != 0
     }

     open var intValue: Int {
         var val: Int = 0
         withUnsafeMutablePointer(to: &val) { (value: UnsafeMutablePointer<Int>) -> Void in
             CFNumberGetValue(_cfObject, kCFNumberLongType, value)
         }
         return val
     }

     open var uintValue: UInt {
         var val: UInt = 0
         withUnsafeMutablePointer(to: &val) { (value: UnsafeMutablePointer<UInt>) -> Void in
             CFNumberGetValue(_cfObject, kCFNumberLongType, value)
         }
         return val
     }

     open var stringValue: String {
         return description(withLocale: nil)
     }

     /// Create an instance initialized to `value`.
     public required convenience init(integerLiteral value: Int) {
         self.init(value: value)
     }

     /// Create an instance initialized to `value`.
     public required convenience init(floatLiteral value: Double) {
         self.init(value: value)
     }

     /// Create an instance initialized to `value`.
     public required convenience init(booleanLiteral value: Bool) {
         self.init(value: value)
     }

     open func compare(_ otherNumber: NSNumber) -> ComparisonResult {
         return ._fromCF(CFNumberCompare(_cfObject, otherNumber._cfObject, nil))
     }

     open func description(withLocale locale: Locale?) -> String {
         let aLocale = locale
         let formatter: CFNumberFormatter
         if (aLocale == nil) {
             formatter = CFNumberFormatterCreate(nil, CFLocaleCopyCurrent(), kCFNumberFormatterNoStyle)
             CFNumberFormatterSetProperty(formatter, kCFNumberFormatterMaxFractionDigits, 15._bridgeToObjectiveC())

         } else {
             formatter = CFNumberFormatterCreate(nil, aLocale?._cfObject, kCFNumberFormatterDecimalStyle)
         }
         return CFNumberFormatterCreateStringWithNumber(nil, formatter, self._cfObject)._swiftObject
     }

     override open var _cfTypeID: CFTypeID {
         return CFNumberGetTypeID()
     }

     open override var description: String {
         return description(withLocale: nil)
     }
 }

 extension CFNumber : _NSBridgeable {
     typealias NSType = NSNumber
     internal var _nsObject: NSType { return unsafeBitCast(self, to: NSType.self) }
 }
	// This source file is part of the Swift.org open source project
	//
	// Copyright (c) 2014 - 2016 Apple Inc. and the Swift project authors
	// Licensed under Apache License v2.0 with Runtime Library Exception
	//
	// See http://swift.org/LICENSE.txt for license information
	// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
	//


	import CoreFoundation

	#if os(OSX) \|\| os(iOS)
	internal let kCFNumberSInt8Type = CFNumberType.sInt8Type
	internal let kCFNumberSInt16Type = CFNumberType.sInt16Type
	internal let kCFNumberSInt32Type = CFNumberType.sInt32Type
	internal let kCFNumberSInt64Type = CFNumberType.sInt64Type
	internal let kCFNumberFloat32Type = CFNumberType.float32Type
	internal let kCFNumberFloat64Type = CFNumberType.float64Type
	internal let kCFNumberCharType = CFNumberType.charType
	internal let kCFNumberShortType = CFNumberType.shortType
	internal let kCFNumberIntType = CFNumberType.intType
	internal let kCFNumberLongType = CFNumberType.longType
	internal let kCFNumberLongLongType = CFNumberType.longLongType
	internal let kCFNumberFloatType = CFNumberType.floatType
	internal let kCFNumberDoubleType = CFNumberType.doubleType
	internal let kCFNumberCFIndexType = CFNumberType.cfIndexType
	internal let kCFNumberNSIntegerType = CFNumberType.nsIntegerType
	internal let kCFNumberCGFloatType = CFNumberType.cgFloatType
	#endif

	extension Int : _ObjectTypeBridgeable {
	public init(_ number: NSNumber) {
	self = number.intValue
	}

	public typealias _ObjectType = NSNumber
	public func _bridgeToObjectiveC() -> _ObjectType {
	return NSNumber(value: self)
	}

	static public func _forceBridgeFromObjectiveC(_ source: _ObjectType, result: inout Int?) {
	result = _unconditionallyBridgeFromObjectiveC(source)
	}

	@discardableResult
	static public func _conditionallyBridgeFromObjectiveC(_ source: _ObjectType, result: inout Int?) -> Bool {
	result = source.intValue
	return true
	}

	static public func _unconditionallyBridgeFromObjectiveC(_ source: _ObjectType?) -> Int {
	if let object = source {
	var value: Int?
	_conditionallyBridgeFromObjectiveC(object, result: &value)
	return value!
	} else {
	return 0
	}
	}
	}

	extension UInt : _ObjectTypeBridgeable {
	public init(_ number: NSNumber) {
	self = number.uintValue
	}

	public typealias _ObjectType = NSNumber
	public func _bridgeToObjectiveC() -> _ObjectType {
	return NSNumber(value: self)
	}

	static public func _forceBridgeFromObjectiveC(_ source: _ObjectType, result: inout UInt?) {
	result = _unconditionallyBridgeFromObjectiveC(source)
	}

	@discardableResult
	static public func _conditionallyBridgeFromObjectiveC(_ source: _ObjectType, result: inout UInt?) -> Bool {
	result = source.uintValue
	return true
	}

	static public func _unconditionallyBridgeFromObjectiveC(_ source: _ObjectType?) -> UInt {
	if let object = source {
	var value: UInt?
	_conditionallyBridgeFromObjectiveC(object, result: &value)
	return value!
	} else {
	return 0
	}
	}
	}

	extension Float : _ObjectTypeBridgeable {
	public init(_ number: NSNumber) {
	self = number.floatValue
	}

	public typealias _ObjectType = NSNumber
	public func _bridgeToObjectiveC() -> _ObjectType {
	return NSNumber(value: self)
	}

	static public func _forceBridgeFromObjectiveC(_ source: _ObjectType, result: inout Float?) {
	result = _unconditionallyBridgeFromObjectiveC(source)
	}

	@discardableResult
	static public func _conditionallyBridgeFromObjectiveC(_ source: _ObjectType, result: inout Float?) -> Bool {
	result = source.floatValue
	return true
	}

	static public func _unconditionallyBridgeFromObjectiveC(_ source: _ObjectType?) -> Float {
	if let object = source {
	var value: Float?
	_conditionallyBridgeFromObjectiveC(object, result: &value)
	return value!
	} else {
	return 0.0
	}
	}
	}

	extension Double : _ObjectTypeBridgeable {
	public init(_ number: NSNumber) {
	self = number.doubleValue
	}

	public typealias _ObjectType = NSNumber
	public func _bridgeToObjectiveC() -> _ObjectType {
	return NSNumber(value: self)
	}

	static public func _forceBridgeFromObjectiveC(_ source: _ObjectType, result: inout Double?) {
	result = _unconditionallyBridgeFromObjectiveC(source)
	}

	@discardableResult
	static public func _conditionallyBridgeFromObjectiveC(_ source: _ObjectType, result: inout Double?) -> Bool {
	result = source.doubleValue
	return true
	}

	static public func _unconditionallyBridgeFromObjectiveC(_ source: _ObjectType?) -> Double {
	if let object = source {
	var value: Double?
	_conditionallyBridgeFromObjectiveC(object, result: &value)
	return value!
	} else {
	return 0.0
	}
	}
	}

	extension Bool : _ObjectTypeBridgeable {
	public init(_ number: NSNumber) {
	self = number.boolValue
	}

	public typealias _ObjectType = NSNumber
	public func _bridgeToObjectiveC() -> _ObjectType {
	return NSNumber(value: self)
	}

	static public func _forceBridgeFromObjectiveC(_ source: _ObjectType, result: inout Bool?) {
	result = _unconditionallyBridgeFromObjectiveC(source)
	}

	@discardableResult
	static public func _conditionallyBridgeFromObjectiveC(_ source: _ObjectType, result: inout Bool?) -> Bool {
	result = source.boolValue
	return true
	}

	static public func _unconditionallyBridgeFromObjectiveC(_ source: _ObjectType?) -> Bool {
	if let object = source {
	var value: Bool?
	_conditionallyBridgeFromObjectiveC(object, result: &value)
	return value!
	} else {
	return false
	}
	}
	}

	extension Bool : _CFBridgeable {
	typealias CFType = CFBoolean
	var _cfObject: CFType {
	return self ? kCFBooleanTrue : kCFBooleanFalse
	}
	}

	extension NSNumber : ExpressibleByFloatLiteral, ExpressibleByIntegerLiteral, ExpressibleByBooleanLiteral {

	}

	open class NSNumber : NSValue {
	typealias CFType = CFNumber
	// This layout MUST be the same as CFNumber so that they are bridgeable
	private var _base = _CFInfo(typeID: CFNumberGetTypeID())
	private var _pad: UInt64 = 0

	internal var _cfObject: CFType {
	return unsafeBitCast(self, to: CFType.self)
	}

	open override var hash: Int {
	return Int(bitPattern: CFHash(_cfObject))
	}

	open override func isEqual(_ value: Any?) -> Bool {
	if let number = value as? Int {
	return intValue == number
	} else if let number = value as? Double {
	return doubleValue == number
	} else if let number = value as? Bool {
	return boolValue == number
	} else if let number = value as? NSNumber {
	return CFEqual(_cfObject, number._cfObject)
	}
	return false
	}

	deinit {
	_CFDeinit(self)
	}

	public init(value: Int8) {
	super.init()
	_CFNumberInitInt8(_cfObject, value)
	}

	public init(value: UInt8) {
	super.init()
	_CFNumberInitUInt8(_cfObject, value)
	}

	public init(value: Int16) {
	super.init()
	_CFNumberInitInt16(_cfObject, value)
	}

	public init(value: UInt16) {
	super.init()
	_CFNumberInitUInt16(_cfObject, value)
	}

	public init(value: Int32) {
	super.init()
	_CFNumberInitInt32(_cfObject, value)
	}

	public init(value: UInt32) {
	super.init()
	_CFNumberInitUInt32(_cfObject, value)
	}

	public init(value: Int) {
	super.init()
	_CFNumberInitInt(_cfObject, value)
	}

	public init(value: UInt) {
	super.init()
	_CFNumberInitUInt(_cfObject, value)
	}

	public init(value: Int64) {
	super.init()
	_CFNumberInitInt64(_cfObject, value)
	}

	public init(value: UInt64) {
	super.init()
	_CFNumberInitUInt64(_cfObject, value)
	}

	public init(value: Float) {
	super.init()
	_CFNumberInitFloat(_cfObject, value)
	}

	public init(value: Double) {
	super.init()
	_CFNumberInitDouble(_cfObject, value)
	}

	public init(value: Bool) {
	super.init()
	_CFNumberInitBool(_cfObject, value)
	}

	public required convenience init(bytes buffer: UnsafeRawPointer, objCType: UnsafePointer<Int8>) {
	guard let type = _NSSimpleObjCType(UInt8(objCType.pointee)) else {
	fatalError("NSNumber.init: unsupported type encoding spec '\(String(cString: objCType))'")
	}
	switch type {
	case .Bool:
	self.init(value:buffer.load(as: Bool.self))
	break
	case .Char:
	self.init(value:buffer.load(as: Int8.self))
	break
	case .UChar:
	self.init(value:buffer.load(as: UInt8.self))
	break
	case .Short:
	self.init(value:buffer.load(as: Int16.self))
	break
	case .UShort:
	self.init(value:buffer.load(as: UInt16.self))
	break
	case .Int, .Long:
	self.init(value:buffer.load(as: Int32.self))
	break
	case .UInt, .ULong:
	self.init(value:buffer.load(as: UInt32.self))
	break
	case .LongLong:
	self.init(value:buffer.load(as: Int64.self))
	break
	case .ULongLong:
	self.init(value:buffer.load(as: UInt64.self))
	break
	case .Float:
	self.init(value:buffer.load(as: Float.self))
	break
	case .Double:
	self.init(value:buffer.load(as: Double.self))
	break
	default:
	fatalError("NSNumber.init: unsupported type encoding spec '\(String(cString: objCType))'")
	break
	}
	}

	public required convenience init?(coder aDecoder: NSCoder) {
	guard aDecoder.allowsKeyedCoding else {
	preconditionFailure("Unkeyed coding is unsupported.")
	}
	if type(of: aDecoder) == NSKeyedUnarchiver.self \|\| aDecoder.containsValue(forKey: "NS.number") {
	let number = aDecoder._decodePropertyListForKey("NS.number")
	if let val = number as? Double {
	self.init(value:val)
	} else if let val = number as? Int {
	self.init(value:val)
	} else if let val = number as? Bool {
	self.init(value:val)
	} else {
	return nil
	}
	} else {
	if aDecoder.containsValue(forKey: "NS.boolval") {
	self.init(value: aDecoder.decodeBool(forKey: "NS.boolval"))
	} else if aDecoder.containsValue(forKey: "NS.intval") {
	self.init(value: aDecoder.decodeInt64(forKey: "NS.intval"))
	} else if aDecoder.containsValue(forKey: "NS.dblval") {
	self.init(value: aDecoder.decodeDouble(forKey: "NS.dblval"))
	} else {
	return nil
	}
	}
	}

	open var int8Value: Int8 {
	var val: Int8 = 0
	withUnsafeMutablePointer(to: &val) { (value: UnsafeMutablePointer<Int8>) -> Void in
	CFNumberGetValue(_cfObject, kCFNumberCharType, value)
	}
	return val
	}

	open var uint8Value: UInt8 {
	var val: UInt8 = 0
	withUnsafeMutablePointer(to: &val) { (value: UnsafeMutablePointer<UInt8>) -> Void in
	CFNumberGetValue(_cfObject, kCFNumberCharType, value)
	}
	return val
	}

	open var int16Value: Int16 {
	var val: Int16 = 0
	withUnsafeMutablePointer(to: &val) { (value: UnsafeMutablePointer<Int16>) -> Void in
	CFNumberGetValue(_cfObject, kCFNumberShortType, value)
	}
	return val
	}

	open var uint16Value: UInt16 {
	var val: UInt16 = 0
	withUnsafeMutablePointer(to: &val) { (value: UnsafeMutablePointer<UInt16>) -> Void in
	CFNumberGetValue(_cfObject, kCFNumberShortType, value)
	}
	return val
	}

	open var int32Value: Int32 {
	var val: Int32 = 0
	withUnsafeMutablePointer(to: &val) { (value: UnsafeMutablePointer<Int32>) -> Void in
	CFNumberGetValue(_cfObject, kCFNumberIntType, value)
	}
	return val
	}

	open var uint32Value: UInt32 {
	var val: UInt32 = 0
	withUnsafeMutablePointer(to: &val) { (value: UnsafeMutablePointer<UInt32>) -> Void in
	CFNumberGetValue(_cfObject, kCFNumberIntType, value)
	}
	return val
	}

	open var int64Value: Int64 {
	var val: Int64 = 0
	withUnsafeMutablePointer(to: &val) { (value: UnsafeMutablePointer<Int64>) -> Void in
	CFNumberGetValue(_cfObject, kCFNumberLongLongType, value)
	}
	return val
	}

	open var uint64Value: UInt64 {
	var val: UInt64 = 0
	withUnsafeMutablePointer(to: &val) { (value: UnsafeMutablePointer<UInt64>) -> Void in
	CFNumberGetValue(_cfObject, kCFNumberLongLongType, value)
	}
	return val
	}

	open var floatValue: Float {
	var val: Float = 0
	withUnsafeMutablePointer(to: &val) { (value: UnsafeMutablePointer<Float>) -> Void in
	CFNumberGetValue(_cfObject, kCFNumberFloatType, value)
	}
	return val
	}

	open var doubleValue: Double {
	var val: Double = 0
	withUnsafeMutablePointer(to: &val) { (value: UnsafeMutablePointer<Double>) -> Void in
	CFNumberGetValue(_cfObject, kCFNumberDoubleType, value)
	}
	return val
	}

	open var boolValue: Bool {
	return int64Value != 0
	}

	open var intValue: Int {
	var val: Int = 0
	withUnsafeMutablePointer(to: &val) { (value: UnsafeMutablePointer<Int>) -> Void in
	CFNumberGetValue(_cfObject, kCFNumberLongType, value)
	}
	return val
	}

	open var uintValue: UInt {
	var val: UInt = 0
	withUnsafeMutablePointer(to: &val) { (value: UnsafeMutablePointer<UInt>) -> Void in
	CFNumberGetValue(_cfObject, kCFNumberLongType, value)
	}
	return val
	}

	open var stringValue: String {
	return description(withLocale: nil)
	}

	/// Create an instance initialized to `value`.
	public required convenience init(integerLiteral value: Int) {
	self.init(value: value)
	}

	/// Create an instance initialized to `value`.
	public required convenience init(floatLiteral value: Double) {
	self.init(value: value)
	}

	/// Create an instance initialized to `value`.
	public required convenience init(booleanLiteral value: Bool) {
	self.init(value: value)
	}

	open func compare(_ otherNumber: NSNumber) -> ComparisonResult {
	return ._fromCF(CFNumberCompare(_cfObject, otherNumber._cfObject, nil))
	}

	open func description(withLocale locale: Locale?) -> String {
	let aLocale = locale
	let formatter: CFNumberFormatter
	if (aLocale == nil) {
	formatter = CFNumberFormatterCreate(nil, CFLocaleCopyCurrent(), kCFNumberFormatterNoStyle)
	CFNumberFormatterSetProperty(formatter, kCFNumberFormatterMaxFractionDigits, 15._bridgeToObjectiveC())

	} else {
	formatter = CFNumberFormatterCreate(nil, aLocale?._cfObject, kCFNumberFormatterDecimalStyle)
	}
	return CFNumberFormatterCreateStringWithNumber(nil, formatter, self._cfObject)._swiftObject
	}

	override open var _cfTypeID: CFTypeID {
	return CFNumberGetTypeID()
	}

	open override var description: String {
	return description(withLocale: nil)
	}
	}

	extension CFNumber : _NSBridgeable {
	typealias NSType = NSNumber
	internal var _nsObject: NSType { return unsafeBitCast(self, to: NSType.self) }
	}