Stop increasing the nextIndex beyond endIndex in BagIterator.

andersio · andersio · commit 439f535825ef · 2016-11-27T19:58:36.000+01:00
diff --git a/Sources/Bag.swift b/Sources/Bag.swift
@@ -96,9 +96,9 @@ public struct BagIterator<Element>: IteratorProtocol {
 
 	public mutating func next() -> Element? {
 		let currentIndex = nextIndex
-		nextIndex = currentIndex + 1
 
 		if currentIndex < endIndex {
+			nextIndex = currentIndex + 1
 			return base[currentIndex].value
 		}
 

Original file line number	Diff line number	Diff line change
`@@ -96,9 +96,9 @@ public struct BagIterator<Element>: IteratorProtocol {`
`96`	`96`
`97`	`97`	`public mutating func next() -> Element? {`
`98`	`98`	`let currentIndex = nextIndex`
`99`		`- nextIndex = currentIndex + 1`
`100`	`99`
`101`	`100`	`if currentIndex < endIndex {`
	`101`	`+ nextIndex = currentIndex + 1`
`102`	`102`	`return base[currentIndex].value`
`103`	`103`	`}`
`104`	`104`