michael@0: // Copyright 2009 the Sputnik authors.  All rights reserved.
michael@0: // This code is governed by the BSD license found in the LICENSE file.
michael@0: 
michael@0: /**
michael@0:  * If x is NaN, operator -x returns NaN
michael@0:  *
michael@0:  * @path ch11/11.4/11.4.7/S11.4.7_A4.1.js
michael@0:  * @description Checking NaN
michael@0:  */
michael@0: 
michael@0: //CHECK#1
michael@0: if (isNaN(-NaN) !== true) {
michael@0:   $ERROR('#1: -NaN === Not-a-Number. Actual: ' + (-NaN));
michael@0: }
michael@0: 
michael@0: //CHECK#2
michael@0: var x = NaN; 
michael@0: if (isNaN(-x) != true) {
michael@0:   $ERROR('#2: var x = NaN; -x === Not-a-Number. Actual: ' + (-x));
michael@0: }
michael@0: