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| struct Circle { | |
| let centre: CGPoint | |
| let radius: Double | |
| } | |
| extension Circle { | |
| init(diameter: Double) { | |
| centre = . zero | |
| radius = diameter / 2 | |
| } | |
| } | |
| // Auto-generated is kept because init is in an extension | |
| let circle = Circle(centre: .zero, radius: 3) | |
| // Custom | |
| let circle2 = Circle(diameter: 6) |
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