added strideable methods

pNre · Feb 1, 2015 · 53f018b · 53f018b
1 parent 48f084a
commit 53f018b
Showing 1 changed file with 10 additions and 0 deletions.
diff --git a/ExSwift/NSDate.swift b/ExSwift/NSDate.swift
@@ -229,6 +229,16 @@ public extension NSDate{
     }
 }
 
+extension NSDate: Strideable {
+    public func distanceTo(other: NSDate) -> NSTimeInterval {
+        return other - self
+    }
+
+    public func advancedBy(n: NSTimeInterval) -> Self {
+        return self.dynamicType(timeIntervalSinceReferenceDate: self.timeIntervalSinceReferenceDate + n)
+    }
+}
+
 // MARK: Comparable functions
 
 public func ==(lhs: NSDate, rhs: NSDate) -> Bool {