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add FastSet.first() for quick access to the first element of a FastSet
author
adam
<adam@megacz.com>
Tue, 4 Mar 2008 04:06:40 +0000
(23:06 -0500)
committer
adam
<adam@megacz.com>
Tue, 4 Mar 2008 04:06:40 +0000
(23:06 -0500)
darcs-hash:
20080304040640
-5007d-
bb4ef3dcf9eba44ce411de64a2f5fb565787e660
.gz
src/edu/berkeley/sbp/util/FastSet.java
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diff --git
a/src/edu/berkeley/sbp/util/FastSet.java
b/src/edu/berkeley/sbp/util/FastSet.java
index
4e289cd
..
581886e
100644
(file)
--- a/
src/edu/berkeley/sbp/util/FastSet.java
+++ b/
src/edu/berkeley/sbp/util/FastSet.java
@@
-22,6
+22,12
@@
public /*final*/ class FastSet<T> implements Iterator<T>, Iterable<T>, Visitable
return (T)array[i];
}
+ public T first() {
+ if (only != null) return only;
+ if (array != null) return (T)(array[0]);
+ return null;
+ }
+
public FastSet() { }
public FastSet(T t) { only = t; }
public FastSet(Set<T> s) {