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 value is NaN, +0, -0, +Infinity, or -Infinity, return +0
michael@0:  *
michael@0:  * @path ch09/9.5/S9.5_A1_T1.js
michael@0:  * @description For testing use operator <<0
michael@0:  */
michael@0: 
michael@0: // CHECK#1
michael@0: if ((Number.NaN << 0) !== +0) {
michael@0:   $ERROR('#1.1: (Number.NaN << 0) === 0. Actual: ' + ((Number.NaN << 0)));
michael@0: } else if (1/(Number.NaN << 0) !== Number.POSITIVE_INFINITY) {
michael@0:   $ERROR('#1.2: (Number.NaN << 0) === +0. Actual: -0');
michael@0: }
michael@0: 
michael@0: // CHECK#2
michael@0: if ((Number("abc") << 0) !== +0) {
michael@0:   $ERROR('#2.1: (Number("abc") << 0) === 0. Actual: ' + ((Number("abc") << 0)));
michael@0: } else if (1/(0 << 0) !== Number.POSITIVE_INFINITY) {
michael@0:   $ERROR('#2.2: (0 << 0) === +0. Actual: -0');
michael@0: }
michael@0: 
michael@0: // CHECK#3
michael@0: if ((0 << 0) !== +0) {
michael@0:   $ERROR('#3.1: (0 << 0) === 0. Actual: ' + ((0 << 0)));
michael@0: } else if (1/(0 << 0) !== Number.POSITIVE_INFINITY) {
michael@0:   $ERROR('#3.2: (0 << 0) === +0. Actual: -0');
michael@0: }
michael@0: 
michael@0: // CHECK#4
michael@0: if ((-0 << 0) !== +0) {
michael@0:   $ERROR("#4.1: (-0 << 0) === 0");
michael@0: } else if (1/(-0 << 0) !== Number.POSITIVE_INFINITY) {
michael@0:   $ERROR("#4.2: (-0 << 0) === +0. Actual: -0");
michael@0: }
michael@0: 
michael@0: // CHECK#5
michael@0: if ((Number.POSITIVE_INFINITY << 0) !== +0) {
michael@0:   $ERROR('#5.1: (Number.POSITIVE_INFINITY << 0) === 0. Actual: ' + ((Number.POSITIVE_INFINITY << 0)));
michael@0: } else if (1/(Number.POSITIVE_INFINITY << 0) !== Number.POSITIVE_INFINITY) {
michael@0:   $ERROR('#5.2: (Number.POSITIVE_INFINITY << 0) === +0. Actual: -0');
michael@0: }
michael@0: 
michael@0: // CHECK#6
michael@0: if ((Number.NEGATIVE_INFINITY << 0) !== +0) {
michael@0:   $ERROR("#6.1: (Number.NEGATIVE_INFINITY << 0) === 0");
michael@0: } else if (1/(Number.NEGATIVE_INFINITY << 0) !== Number.POSITIVE_INFINITY) {
michael@0:   $ERROR("#6.2: (Number.NEGATIVE_INFINITY << 0) === +0. Actual: -0");
michael@0: }
michael@0: