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 an addition is determined using the rules of IEEE 754 double-precision arithmetics
michael@0:  *
michael@0:  * @path ch11/11.6/11.6.1/S11.6.1_A4_T9.js
michael@0:  * @description The addition operator is not always associative ( x + y + z is the same (x + y) + z, not x + (y + z))
michael@0:  */
michael@0: 
michael@0: //CHECK#1
michael@0: if (-Number.MAX_VALUE + Number.MAX_VALUE + Number.MAX_VALUE !== (-Number.MAX_VALUE + Number.MAX_VALUE) + Number.MAX_VALUE) {
michael@0:   $ERROR('#1: -Number.MAX_VALUE + Number.MAX_VALUE + Number.MAX_VALUE === (-Number.MAX_VALUE + Number.MAX_VALUE) + Number.MAX_VALUE. Actual: ' + (-Number.MAX_VALUE + Number.MAX_VALUE + Number.MAX_VALUE));
michael@0: } 
michael@0: 
michael@0: //CHECK#2
michael@0: if ((-Number.MAX_VALUE + Number.MAX_VALUE) + Number.MAX_VALUE === -Number.MAX_VALUE + (Number.MAX_VALUE + Number.MAX_VALUE)) {
michael@0:   $ERROR('#2: (-Number.MAX_VALUE + Number.MAX_VALUE) + Number.MAX_VALUE === -Number.MAX_VALUE + (Number.MAX_VALUE + Number.MAX_VALUE). Actual: ' + ((-Number.MAX_VALUE + Number.MAX_VALUE) + Number.MAX_VALUE));
michael@0: }
michael@0: 
michael@0: //CHECK#3
michael@0: if ("1" + 1 + 1 !== ("1" + 1) + 1) {
michael@0:   $ERROR('#3: "1" + 1 + 1 === ("1" + 1) + 1. Actual: ' + ("1" + 1 + 1));
michael@0: } 
michael@0: 
michael@0: //CHECK#4
michael@0: if (("1" + 1) + 1 === "1" + (1 + 1)) {
michael@0:   $ERROR('#4: ("1" + 1) + 1 !== "1" + (1 + 1)');
michael@0: }
michael@0: