AfflictionNetworks/samskivert
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Made addAll() more efficient if it is called with another ArrayIntSet as

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its argument.


git-svn-id: https://samskivert.googlecode.com/svn/trunk@749 6335cc39-0255-0410-8fd6-9bcaacd3b74c
This commit is contained in:
mdb
2002-05-16 22:42:15 +00:00
parent d88837ba3e
commit 1939c9050e
1 changed files with 12 additions and 4 deletions
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projects/samskivert/src/java/com/samskivert/util/ArrayIntSet.java
+12 -4
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@@ -1,5 +1,5 @@
// //
// $Id: ArrayIntSet.java,v 1.7 2002/05/16 22:15:08 mdb Exp $ // $Id: ArrayIntSet.java,v 1.8 2002/05/16 22:42:15 mdb Exp $
// //
// samskivert library - useful routines for java programs // samskivert library - useful routines for java programs
// Copyright (C) 2001 Michael Bayne // Copyright (C) 2001 Michael Bayne
@@ -226,9 +226,17 @@ public class ArrayIntSet extends AbstractSet
public boolean addAll (Collection c) public boolean addAll (Collection c)
{ {
boolean modified = false; boolean modified = false;
Iterator iter = c.iterator(); if (c instanceof ArrayIntSet) {
while (iter.hasNext()) { ArrayIntSet other = (ArrayIntSet)c;
modified = (add(iter.next()) || modified); for (int ii = 0; ii < other._size; ii++) {
modified = (add(other._values[ii]) || modified);
}
} else {
Iterator iter = c.iterator();
while (iter.hasNext()) {
modified = (add(iter.next()) || modified);
}
} }
return modified; return modified;
} }