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_T7.js
michael@0:  * @description The sum of two nonzero finite values of the same magnitude and opposite sign is +0
michael@0:  */
michael@0: 
michael@0: //CHECK#1
michael@0: if (-Number.MIN_VALUE + Number.MIN_VALUE !== +0) {  
michael@0:   $ERROR('#1.1: -Number.MIN_VALUE + Number.MIN_VALUE === 0. Actual: ' + (-Number.MIN_VALUE + Number.MIN_VALUE));
michael@0: } else {
michael@0:   if (1 / (-Number.MIN_VALUE + Number.MIN_VALUE) !== Number.POSITIVE_INFINITY) {
michael@0:     $ERROR('#1.2: -Number.MIN_VALUE + Number.MIN_VALUE === + 0. Actual: -0');
michael@0:   }
michael@0: }
michael@0: 
michael@0: //CHECK#2
michael@0: if (-Number.MAX_VALUE + Number.MAX_VALUE !== +0) {  
michael@0:   $ERROR('#2.1: -Number.MAX_VALUE + Number.MAX_VALUE === 0. Actual: ' + (-Number.MAX_VALUE + Number.MAX_VALUE));
michael@0: } else {
michael@0:   if (1 / (-Number.MAX_VALUE + Number.MAX_VALUE) !== Number.POSITIVE_INFINITY) {
michael@0:     $ERROR('#2.2: -Number.MAX_VALUE + Number.MAX_VALUE === + 0. Actual: -0');
michael@0:   }
michael@0: }
michael@0: 
michael@0: //CHECK#3
michael@0: if (-1 / Number.MAX_VALUE + 1 / Number.MAX_VALUE !== +0) {  
michael@0:   $ERROR('#3.1: -1 / Number.MAX_VALUE + 1 / Number.MAX_VALUE === 0. Actual: ' + (-1 / Number.MAX_VALUE + 1 / Number.MAX_VALUE));
michael@0: } else {
michael@0:   if (1 / (-1 / Number.MAX_VALUE + 1 / Number.MAX_VALUE) !== Number.POSITIVE_INFINITY) {
michael@0:     $ERROR('#3.2: -1 / Number.MAX_VALUE + 1 / Number.MAX_VALUE === + 0. Actual: -0');
michael@0:   }
michael@0: }
michael@0: