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russbishop/OptionalCompare.swift

Last active October 28, 2016 18:20
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OptionalCompare.swift
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OptionalCompare.swift
func < <T: Comparable>(lhs: T?, rhs: T?) -> Bool {
switch (lhs, rhs) {
case let (l?, r?):
return l < r
case (nil, _?):
return true
default:
return false
}
}
func > <T: Comparable>(lhs: T?, rhs: T?) -> Bool {
switch (lhs, rhs) {
case let (l?, r?):
return l > r
default:
return false
}
}
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