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:  * The result of a floating-point multiplication is governed by the rules of IEEE 754 double-precision arithmetics
michael@0:  *
michael@0:  * @path ch11/11.5/11.5.1/S11.5.1_A4_T4.js
michael@0:  * @description Multiplication of an infinity by an infinity results in an infinity of appropriate sign
michael@0:  */
michael@0: 
michael@0: //CHECK#1
michael@0: if (Number.NEGATIVE_INFINITY * Number.NEGATIVE_INFINITY !== Number.POSITIVE_INFINITY) {
michael@0:   $ERROR('#1: -Infinity * -Infinity === Infinity. Actual: ' + (-Infinity * -Infinity));
michael@0: }
michael@0: 
michael@0: //CHECK#2
michael@0: if (Number.POSITIVE_INFINITY * Number.POSITIVE_INFINITY !== Number.POSITIVE_INFINITY) {
michael@0:   $ERROR('#2: Infinity * Infinity === Infinity. Actual: ' + (Infinity * Infinity));
michael@0: }
michael@0: 
michael@0: //CHECK#3
michael@0: if (Number.NEGATIVE_INFINITY * Number.POSITIVE_INFINITY !== Number.NEGATIVE_INFINITY) {
michael@0:   $ERROR('#3: -Infinity * Infinity === -Infinity. Actual: ' + (-Infinity * Infinity));
michael@0: }
michael@0: 
michael@0: //CHECK#4
michael@0: if (Number.POSITIVE_INFINITY * Number.NEGATIVE_INFINITY !== Number.NEGATIVE_INFINITY) {
michael@0:   $ERROR('#4: Infinity * -Infinity === -Infinity. Actual: ' + (Infinity * -Infinity));
michael@0: }
michael@0: