diff -r 47341245c458 -r 46ac2aac776b LinkedList.st
--- a/LinkedList.st	Tue Dec 30 13:47:13 2014 +0100
+++ b/LinkedList.st	Tue Dec 30 13:50:31 2014 +0100
@@ -215,6 +215,36 @@
 
     lastLink isNil ifTrue:[self emptyCollectionError].
     ^ lastLink
+!
+
+linkAt:index
+    "return the n'th element - use of this method should be avoided,
+     since it is slow to walk through the list - think about using
+     another collection if you need indexed access.
+     Notice, that many methods in SeqColl are based on at:-access,
+     so other inherited methods may be very slow (showing square runtime)."
+
+    ^ self linkAt:index ifAbsent:[ self subscriptBoundsError:index]
+!
+
+linkAt:index ifAbsent:exceptionBlock
+    "return the n'th element - use of this method should be avoided,
+     since it is slow to walk through the list - think about using
+     another collection if you need indexed access.
+     Notice, that many methods in SeqColl are based on at:-access,
+     so other inherited methods may be very slow (showing square runtime)."
+
+    |theLink
+     runIndex "{Class: SmallInteger}"|
+
+    theLink := firstLink.
+    runIndex := 1.
+    [runIndex == index] whileFalse:[
+        theLink isNil ifTrue:[^ exceptionBlock value].
+        theLink := theLink nextLink.
+        runIndex := runIndex + 1.
+    ].
+    ^ theLink
 ! !
 
 !LinkedList methodsFor:'adding & removing'!
@@ -478,10 +508,10 @@
 !LinkedList class methodsFor:'documentation'!
 
 version
-    ^ '$Header: /cvs/stx/stx/libbasic/LinkedList.st,v 1.46 2014-12-30 00:36:46 cg Exp $'
+    ^ '$Header: /cvs/stx/stx/libbasic/LinkedList.st,v 1.47 2014-12-30 12:50:31 cg Exp $'
 !
 
 version_CVS
-    ^ '$Header: /cvs/stx/stx/libbasic/LinkedList.st,v 1.46 2014-12-30 00:36:46 cg Exp $'
+    ^ '$Header: /cvs/stx/stx/libbasic/LinkedList.st,v 1.47 2014-12-30 12:50:31 cg Exp $'
 ! !