js-hexfloat - npm Package Compare versions

Comparing version 0.4.4 to 0.4.5

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);

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",

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'));
+});

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/

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Improved metrics

Lines of code

157

increased by18.94%

Worsened metrics

Total package byte prevSize

12696

decreased by-41.43%

Number of package files

9

decreased by-30.77%

No dependency changes