The Tor Browser: js/src/tests/test262/ch11/11.5/11.5.3/S11.5.3_A4

     1 // Copyright 2009 the Sputnik authors.  All rights reserved.

     2 // This code is governed by the BSD license found in the LICENSE file.

     4 /**

     5  * The result of a ECMAScript floating-point remainder operation is determined by the rules of IEEE arithmetics

     6  *

     7  * @path ch11/11.5/11.5.3/S11.5.3_A4_T7.js

     8  * @description If operands neither an infinity, nor a zero, nor NaN, return x - truncate(x / y) * y

     9  */

    11 function truncate(x) {

    12   if (x > 0) {

    13     return Math.floor(x);

    14   } else {

    15     return Math.ceil(x);

    16   }

    17 }

    19 //CHECK#1

    20 x = 1.3;

    21 y = 1.1;

    22 if (x % y !== 0.19999999999999996) {

    23   $ERROR('#1: x = 1.3; y = 1.1; x % y === 0.19999999999999996. Actual: ' + (x % y));

    24 }

    26 //CHECK#2

    27 x = -1.3;

    28 y = 1.1;

    29 if (x % y !== -0.19999999999999996) {

    30   $ERROR('#2: x = -1.3; y = 1.1; x % y === -0.19999999999999996. Actual: ' + (x % y));

    31 }

    33 //CHECK#3

    34 x = 1.3;

    35 y = -1.1;

    36 if (x % y !== 0.19999999999999996) {

    37   $ERROR('#3: x = 1.3; y = -1.1; x % y === 0.19999999999999996. Actual: ' + (x % y));

    38 }

    40 //CHECK#4

    41 x = -1.3;

    42 y = -1.1;

    43 if (x % y !== -0.19999999999999996) {

    44   $ERROR('#4: x = -1.3; y = -1.1; x % y === -0.19999999999999996. Actual: ' + (x % y));

    45 }

    47 //CHECK#5

    48 x = 1.3;

    49 y = 1.1;

    50 if (x % y !== x - truncate(x / y) * y) {

    51   $ERROR('#5: x = 1.3; y = 1.1; x % y === x - truncate(x / y) * y. Actual: ' + (x % y));

    52 }

    54 //CHECK#6

    55 x = -1.3;

    56 y = 1.1;

    57 if (x % y !== x - truncate(x / y) * y) {

    58   $ERROR('#6: x = -1.3; y = 1.1; x % y === x - truncate(x / y) * y. Actual: ' + (x % y));

    59 }

    61 //CHECK#7

    62 x = 1.3;

    63 y = -1.1;

    64 if (x % y !== x - truncate(x / y) * y) {

    65   $ERROR('#7: x = 1.3; y = -1.1; x % y === x - truncate(x / y) * y. Actual: ' + (x % y));

    66 }

    68 //CHECK#8

    69 x = -1.3;

    70 y = -1.1;

    71 if (x % y !== x - truncate(x / y) * y) {

    72   $ERROR('#8: x = -1.3; y = -1.1; x % y === x - truncate(x / y) * y. Actual: ' + (x % y));

    73 }

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