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_T8.js michael@0: * @description Multiplication is not always associative (x * y * z is the same as (x * y) * z, not x * (y * z)) michael@0: */ michael@0: michael@0: //CHECK#1 michael@0: if (Number.MAX_VALUE * 1.1 * 0.9 !== (Number.MAX_VALUE * 1.1) * 0.9) { michael@0: $ERROR('#1: Number.MAX_VALUE * 1.1 * 0.9 === (Number.MAX_VALUE * 1.1) * 0.9. Actual: ' + (Number.MAX_VALUE * 1.1 * 0.9)); michael@0: } michael@0: michael@0: //CHECK#2 michael@0: if ((Number.MAX_VALUE * 1.1) * 0.9 === Number.MAX_VALUE * (1.1 * 0.9)) { michael@0: $ERROR('#2: (Number.MAX_VALUE * 1.1) * 0.9 !== Number.MAX_VALUE * (1.1 * 0.9)'); michael@0: } michael@0: