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 division is determined by the specification of IEEE 754 arithmetics
michael@0:  *
michael@0:  * @path ch11/11.5/11.5.2/S11.5.2_A4_T6.js
michael@0:  * @description Division of a finite value by an infinity results in zero of appropriate sign
michael@0:  */
michael@0: 
michael@0: //CHECK#1
michael@0: if (1 / Number.NEGATIVE_INFINITY !== -0) {
michael@0:   $ERROR('#1.1: 1 / -Infinity === 0. Actual: ' + (1 / -Infinity));
michael@0: } else {
michael@0:   if (1 / (1 / Number.NEGATIVE_INFINITY) !== Number.NEGATIVE_INFINITY) {
michael@0:     $ERROR('#1.2: 1 / -Infinity === - 0. Actual: +0');
michael@0:   }
michael@0: }
michael@0: 
michael@0: //CHECK#2
michael@0: if (-1 / Number.NEGATIVE_INFINITY !== +0) {
michael@0:   $ERROR('#2.1: -1 / -Infinity === 0. Actual: ' + (-1 / -Infinity));
michael@0: } else {
michael@0:   if (1 / (-1 / Number.NEGATIVE_INFINITY) !== Number.POSITIVE_INFINITY) {
michael@0:     $ERROR('#2.2: -1 / -Infinity === + 0. Actual: -0');
michael@0:   }
michael@0: }
michael@0: 
michael@0: //CHECK#3
michael@0: if (1 / Number.POSITIVE_INFINITY !== +0) {
michael@0:   $ERROR('#3.1: 1 / Infinity === 0. Actual: ' + (1 / Infinity));
michael@0: } else {
michael@0:   if (1 / (1 / Number.POSITIVE_INFINITY) !== Number.POSITIVE_INFINITY) {
michael@0:     $ERROR('#3.2: 1 / Infinity === + 0. Actual: -0');
michael@0:   }
michael@0: }
michael@0: 
michael@0: //CHECK#4
michael@0: if (-1 / Number.POSITIVE_INFINITY !== -0) {
michael@0:   $ERROR('#4.1: -1 / Infinity === 0. Actual: ' + (-1 / Infinity));
michael@0: } else {
michael@0:   if (1 / (-1 / Number.POSITIVE_INFINITY) !== Number.NEGATIVE_INFINITY) {
michael@0:     $ERROR('#4.2: -1 / Infinity === - 0. Actual: +0');
michael@0:   }
michael@0: }
michael@0: