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Add support for manipulating specific bits within an integer by treating it like an array of Bool values
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| // Source: https://www.douggregor.net/posts/swift-for-cxx-practitioners-extensions/ | |
| extension UInt32 { | |
| subscript(index: Int) -> Bool { | |
| get { | |
| (self & UInt32(1) << index) != 0 | |
| } | |
| set { | |
| let mask = UInt32(1) << index | |
| self = (self & ~mask) | (newValue ? mask : 0) | |
| } | |
| } | |
| } | |
| // Usage | |
| var flags: UInt32 = 0b1001 | |
| flags[2] = true // set bit #2 | |
| flags[0] = false // clear bit #0 |
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