mirror of https://github.com/tc39/test262.git
61 lines
1.9 KiB
JavaScript
61 lines
1.9 KiB
JavaScript
// Copyright 2009 the Sputnik authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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info: >
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The result of a floating-point multiplication is governed by the rules of
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IEEE 754 double-precision arithmetics
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es5id: 11.5.1_A4_T7
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description: >
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If the magnitude is too small to represent, the result is then a
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zero of appropriate sign
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---*/
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//CHECK#1
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if (Number.MIN_VALUE * 0.1 !== 0) {
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$ERROR('#1: Number.MIN_VALUE * 0.1 === 0. Actual: ' + (Number.MIN_VALUE * 0.1));
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}
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//CHECK#2
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if (-0.1 * Number.MIN_VALUE !== -0) {
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$ERROR('#2.1: -0.1 * Number.MIN_VALUE === -0. Actual: ' + (-0.1 * Number.MIN_VALUE));
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} else {
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if (1 / (-0.1 * Number.MIN_VALUE) !== Number.NEGATIVE_INFINITY) {
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$ERROR('#2.2: -0.1 * Number.MIN_VALUE === -0. Actual: +0');
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}
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}
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//CHECK#3
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if (Number.MIN_VALUE * 0.5 !== 0) {
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$ERROR('#3: Number.MIN_VALUE * 0.5 === 0. Actual: ' + (Number.MIN_VALUE * 0.5));
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}
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//CHECK#4
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if (-0.5 * Number.MIN_VALUE !== -0) {
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$ERROR('#4.1: -0.5 * Number.MIN_VALUE === -0. Actual: ' + (-0.5 * Number.MIN_VALUE));
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} else {
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if (1 / (-0.5 * Number.MIN_VALUE) !== Number.NEGATIVE_INFINITY) {
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$ERROR('#4.2: -0.5 * Number.MIN_VALUE === -0. Actual: +0');
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}
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}
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//CHECK#5
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if (Number.MIN_VALUE * 0.51 !== Number.MIN_VALUE) {
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$ERROR('#5: Number.MIN_VALUE * 0.51 === Number.MIN_VALUE. Actual: ' + (Number.MIN_VALUE * 0.51));
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}
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//CHECK#6
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if (-0.51 * Number.MIN_VALUE !== -Number.MIN_VALUE) {
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$ERROR('#6: -0.51 * Number.MIN_VALUE === -Number.MIN_VALUE. Actual: ' + (-0.51 * Number.MIN_VALUE));
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}
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//CHECK#7
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if (Number.MIN_VALUE * 0.9 !== Number.MIN_VALUE) {
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$ERROR('#7: Number.MIN_VALUE * 0.9 === Number.MIN_VALUE. Actual: ' + (Number.MIN_VALUE * 0.9));
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}
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//CHECK#8
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if (-0.9 * Number.MIN_VALUE !== -Number.MIN_VALUE) {
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$ERROR('#8: -0.9 * Number.MIN_VALUE === -Number.MIN_VALUE. Actual: ' + (-0.9 * Number.MIN_VALUE));
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}
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