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August 29, 2015 14:12
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Flipping Bits
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| func flipOn<T: RawOptionSetType>(value: T, change: T) -> T { | |
| return T(rawValue: value.rawValue | change.rawValue ) | |
| } | |
| func flipOff<T: RawOptionSetType>(value: T, change: T) -> T { | |
| return T(rawValue: value.rawValue & ~change.rawValue ) | |
| } | |
| func toggle<T: RawOptionSetType>(value: T, change: T) -> T { | |
| return T(rawValue: value.rawValue ^ change.rawValue ) | |
| } | |
| func bitSetter<T: RawOptionSetType>(value: Int) -> (T,T)->T { | |
| if value==1 { | |
| return flipOn | |
| } else { | |
| return flipOff | |
| } | |
| } | |
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