@Override
	public boolean add(E elem) {
		if (DEBUG_TRACE) {
			debugLog("add: " + elem);
			if (DEBUG_DUMP) debugDump();
		}
		return doAdd(-1, elem);
	}
Initialize all instance fields.

@param values	new values array
@param size		new size
jphp-runtime/src/php/runtime/memory/support/GapList.java