cuint - npm Package Compare versions

Comparing version 0.0.0 to 0.0.1

History.md

@@ -0,1 +1,9 @@
+0.0.1 / 2014-01-01
+==================
+
+* toString() fix for uint < radix
+* toString() no longer alters the unsigned integer
+* fixed shiftLeft() not applying mask properly, affecting toString() and div()
+* added examples
+
 0.0.0 / 2013-12-31
@@ -2,0 +10,0 @@ ==================

lib/uint32.js

@@ -116,14 +116,15 @@ /**
 	UINT32.prototype.toString = function (radix) {
-		if (this._low == 0 && this._high == 0) return '0'
-
 		radix = radix || 10
 		var radixUint = radixCache[radix] || new UINT32(radix)
 
+		if ( this.lt(radixUint) ) return this.toNumber().toString(radix)
+
+		var self = this.clone()
 		var res = new Array(32)
 		for (var i = 31; i >= 0; i--) {
-			this.div(radixUint, true)
-			res[i] = this.remainder.toNumber().toString(radix)
-			if ( !this.gt(radixUint) ) break
+			self.div(radixUint, true)
+			res[i] = self.remainder.toNumber().toString(radix)
+			if ( !self.gt(radixUint) ) break
 		}
-		res[i-1] = this.toNumber().toString(radix)
+		res[i-1] = self.toNumber().toString(radix)
 
@@ -391,5 +392,5 @@ return res.join('')
 			this._high = (this._high << n) | (this._low >>> (16-n))
-			this._low = this._low << n
+			this._low = (this._low << n) & 0xFFFF
 			if (!allowOverflow) {
-				this._low &= 0xFFFF
+				// Overflow only allowed on the high bits...
 				this._high &= 0xFFFF
@@ -396,0 +397,0 @@ }

package.json

 {
   "name": "cuint",
-  "version": "0.0.0",
+  "version": "0.0.1",
   "description": "Unsigned integers for Javascript",
@@ -5,0 +5,0 @@ "main": "index.js",

README.md

@@ -31,10 +31,10 @@ # C-like unsigned integers for Javascript
 
-In the browser, include the following, and access the constructor with _UINT32_:
+In the browser, include the following (file is located in the _build_ directory), and access the constructor with _UINT32_:
 
-`<script src="/your/path/to/uint32.js"></script>
+`<script src="/your/path/to/uint32.lmd.js"></script>
 ...
 <script type="text/javascript">
-  var prime1 = UINT32('3266489917');
-  var prime2 = UINT32('2654435761');
-  var prime1plus2 = prime1.add(prime2)
+  var v1 = UINT32('326648991');
+  var v2 = UINT32('265443576');
+  var v1plus2 = v1.add(v2) // 592092567
 </script>`
@@ -41,0 +41,0 @@

test/UINT32_add-test.js

@@ -98,2 +98,13 @@ var assert = require('assert')
 
+  describe('high bit+high bit 2', function () {
+
+    it('should return n', function (done) {
+      var u = UINT32('326648991').add( UINT32('265443576') )
+
+      assert.equal( u.toNumber(), 592092567 )
+      done()
+    })
+
+  })
+
 })

test/UINT32_div-test.js

@@ -72,2 +72,13 @@ var assert = require('assert')
 
+  describe('high bit/high bit 2', function () {
+
+    it('should return n', function (done) {
+      var u = UINT32('3266489917').div( UINT32('668265263') )
+
+      assert.equal( u.toNumber(), 4 )
+      done()
+    })
+
+  })
+
 })

test/UINT32_toString-test.js

@@ -52,2 +52,13 @@ var assert = require('assert')
 
+  describe('< radix', function () {
+
+    it('should return the number', function (done) {
+      var u = UINT32(4).toString()
+
+      assert.equal( u, '4' )
+      done()
+    })
+
+  })
+
 })

No alert changes

Improved metrics

Total package byte prevSize

56763

increased by54.42%

Number of package files

29

increased by26.09%

Lines of code

1856

increased by54.67%

No dependency changes