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authorTom Tromey <tromey@redhat.com>2004-09-03 20:59:08 +0000
committerTom Tromey <tromey@redhat.com>2004-09-03 20:59:08 +0000
commit8b8efdc07c7e749649eec0b0346eaee290aae455 (patch)
tree7e8d0750cf82fd41dc1e1366fdf0483a18d4ffdc /java/util/BitSet.java
parent1445125d7a407b3cd33db1a6f25e4770f16cc010 (diff)
downloadclasspath-8b8efdc07c7e749649eec0b0346eaee290aae455.tar.gz
* java/util/EnumMap.java: New file.
* java/util/EnumSet.java: New file. * java/util/BitSet.java (containsAll): New method.
Diffstat (limited to 'java/util/BitSet.java')
-rw-r--r--java/util/BitSet.java13
1 files changed, 12 insertions, 1 deletions
diff --git a/java/util/BitSet.java b/java/util/BitSet.java
index c56c0d18c..1f9cb599c 100644
--- a/java/util/BitSet.java
+++ b/java/util/BitSet.java
@@ -1,5 +1,5 @@
/* BitSet.java -- A vector of bits.
- Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
+ Copyright (C) 1998, 1999, 2000, 2001, 2004 Free Software Foundation, Inc.
This file is part of GNU Classpath.
@@ -735,4 +735,15 @@ public class BitSet implements Cloneable, Serializable
bits = nd;
}
}
+
+ // This is used by EnumSet for efficiency.
+ final boolean containsAll(BitSet other)
+ {
+ for (int i = bs.bits.length - 1; i >= 0; i--)
+ {
+ if ((bits[i] & bs.bits[i]) != bs.bits[i])
+ return false;
+ }
+ return true;
+ }
}