package edu.berkeley.sbp.util;
import java.util.*;
-public final class FastSet<T> implements Iterator<T>, Iterable<T> {
+public /*final*/ class FastSet<T> implements Iterator<T>, Iterable<T> {
public static final int INITIAL_SIZE = 128;
private Object[] array;
private T only = null;
- private int i = 0;
+ private int i = -1;
private int size = 0;
public Iterator<T> iterator() { i=0; return this; }
public void remove() { throw new Error(); }
public boolean hasNext() { return only==null ? i<size : i<1; }
public T next() { return only==null ? (T)array[i++] : (i++)==0 ? only : null; }
+ public T get(int i) {
+ if (i==0 && only!=null) return only;
+ if (array==null) return null;
+ return (T)array[i];
+ }
public FastSet() { }
public FastSet(T t) { only = t; }