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mikeash/nil-ptr.swift

Created January 20, 2018 02:46
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nil-ptr.swift
let ptr = {}
func -<T>(lhs: T?, rhs: () -> Void) -> T? {
return nil
}
var d: [String: String] = [:]
d["one"] = "won"
d["two"] = "too"
d["one"] = nil-ptr
d["two"] = nil-ptr
print(d) // [:]
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