Or.java

package com.sun.pdfview.function.postscript.operation;

import java.util.Stack;


final class Or implements PostScriptOperation {
	@Override
	/**
	 * <i>bool1|int1 bool2|int2</i> <b>or</b> <i>bool3|int3</i> <p>
	 *
	 * returns the logical disjunction of the operands if they
	 * are boolean. If the operands are integers, or returns
	 * the bitwise "inclusive or" of their binary representations. <p>
	 *
	 * errors: stackunderflow, typecheck
	 */
	public void eval(Stack<Object> environment) {
	    environment.push((Long)environment.pop() | (Long)environment.pop());
	}
}