package com.sun.pdfview.function.postscript.operation; import java.util.Stack; final class Ge implements PostScriptOperation { @Override /** * <i>num1 num2</i> <b>ge</b> <i>bool</i> <p> * * pops two objects from the operand stack and pushes true * if the first operand is greater than or equal to the second, * or false otherwise. If both operands are numbers, * ge compares their mathematical values. If both operands * are strings, ge compares them element by element, treating * the elements as integers in the range 0 to 255, to determine * whether the first string is lexically greater than or equal * to the second. If the operands are of other types or one * is a string and the other is a number, a typecheck * error occurs. <p> * * errors: invalidaccess, stackunderflow, typecheck */ public void eval(Stack<Object> environment) { double num2 = (Double)environment.pop(); double num1 = (Double)environment.pop(); environment.push(num1 >= num2); } }