public boolean contains(int val) {
		if (val <= 0) {
			return false;
		}
		int index = val >> 5;
		int bit = val & 0x1f;
		return (index < array.size()) && ((array.get(index) & bitMask[bit]) != 0);
	}
Returns whether the dense integer array contains the argument val.
@param val Value to check.
@return True if value is contained.
Ghidra/Features/PDB/src/main/java/ghidra/app/util/bin/format/pdb2/pdbreader/DenseIntegerArray.java