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js-hexfloat

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js-hexfloat - npm Package Compare versions

Comparing version
0.4.4
 to
0.4.5
+12
-3
hexfloat.js
/*
* $Id: hexfloat.js,v 0.4 2016/01/05 07:13:22 dankogai Exp dankogai $
*
* Licensed under the MIT license.

@@ -21,3 +19,7 @@ * http://www.opensource.org/licenses/mit-license.php

: arguments;
if (!m) return NaN;
if (!m) {
var mx = (/^([\+\-]?)inf(?:inity)?/i).exec(arguments[0]);
if (!mx) return NaN;
return mx[1] == '-' ? -1/0 : 1/0;
}
var mantissa = parseInt(m[1] + m[2] + m[3], 16);

@@ -28,2 +30,9 @@ var exponent = (m[4]|0) - 4*m[3].length;

var toHexString = function() {
if (this == 0.0) {
return (1/0 !== 1/this ? '-' : '') + '0x0p+0';
} else if (isNaN(this)) {
return 'nan';
}else if (!isFinite(this)) {
return (this < 0 ? '-' : '') + 'inf';
}
var sign = this < 0 ? '-' : '';

@@ -30,0 +39,0 @@ var a = Math.abs(this);

+1
-1
package.json
{
"name": "js-hexfloat",
"version": "0.4.4",
"version": "0.4.5",
"description": "Rudimentary C99 Hexadecimal Floating Point Support in JS",

@@ -5,0 +5,0 @@ "main": "hexfloat.js",

+23
-5
test/00-basic.js
/*
* $Id: 00-basic.js,v 0.4 2016/01/08 03:58:34 dankogai Exp dankogai $
*
* use mocha to test me

@@ -21,3 +19,3 @@ * http://visionmedia.github.com/mocha/

describe('Hexadecimal Float', function () {
describe('Basic', function () {
it('Math.PI == 0x1.921fb54442d18p+1',

@@ -45,4 +43,2 @@ is(parseHexFloat('0x1.921fb54442d18p+1'), Math.PI));

is(parseHexFloat('-0x1p-42'), -Math.pow(2, -42)));
it('isNaN(parseHexFloat("nonsense"))',
is(isNaN(parseHexFloat('nonsense')), true));
it('0x1p-1074 == Number.MIN_VALUE',

@@ -59,1 +55,23 @@ is(parseHexFloat('0x1p-1074'), Number.MIN_VALUE));

});
describe('Extreme', function () {
it('parseHexFloat("+0x0p+0") == ' + 0.0,
is(parseHexFloat('+0x0p+0'), 0.0));
it('(0.0).toHexString() == "0x0p+0"',
is((0.0).toHexString(), '0x0p+0'));
it('parseHexFloat("-0x0p+0") == ' + 0.0,
is(parseHexFloat('-0x0p+0'), -1.0*0.0));
it('(-1.0*0.0).toHexString() == "-0x0p+0"',
is((-1.0*0.0).toHexString(), '-0x0p+0'));
it('parseHexFloat("inf") == ' + 1/0,
is(parseHexFloat('inf'), 1/0));
it('(1/0).toHexString() == "inf"',
is((-1/0).toHexString(), '-inf'));
it('parseHexFloat("-inf") == ' + -1/0,
is(parseHexFloat('-inf'), -1/0));
it('(-1/0).toHexString() == "-inf"',
is((-1/0).toHexString(), '-inf'));
it('parseHexFloat("uninfected") == ' + NaN,
is(isNaN(parseHexFloat('uninfected')), true));
it('(0/0).toHexString() == "nan"',
is((0/0).toHexString(), 'nan'));
});
+0
-2
test/01-roundtrip.js
/*
* $Id: 01-roundtrip.js,v 0.2 2016/01/08 04:03:25 dankogai Exp dankogai $
*
* use mocha to test me

@@ -5,0 +3,0 @@ * http://visionmedia.github.com/mocha/

+0
-1
test/index.html

@@ -28,5 +28,4 @@ <html>

<body>
$Id: index.html,v 0.1 2016/01/04 11:51:29 dankogai Exp dankogai $
<div id="mocha"></div>
</body>
</html>
hexfloat.js,v

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test/00-basic.js,v

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test/01-roundtrip.js,v

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test/index.html,v

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