From f7566154f430c32cac84c178d8a4d5173580cca1 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Alexis=20Laferri=C3=A8re?= <alexis.laf@xymus.net>
Date: Sun, 3 Apr 2011 11:57:20 -0400
Subject: [PATCH] lib: adds swap_at to arrays
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Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>
---
 lib/standard/collection/array.nit |    7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/lib/standard/collection/array.nit b/lib/standard/collection/array.nit
index 8db629b..e8f7448 100644
--- a/lib/standard/collection/array.nit
+++ b/lib/standard/collection/array.nit
@@ -212,6 +212,13 @@ class AbstractArray[E]
 			_length = l - 1
 		end
 	end
+
+	fun swap_at( a : Int, b : Int )
+	do
+	    var e = self[a]
+	    self[a] = b
+	    self[b] = e
+	end
 end
 
 # Resizeable one dimention array of objects.
-- 
1.7.9.5