fix: readFloat 2.3 => 2.299

benchmark/buffer_toString_fromCharCode.js

@@ -0,0 +1,61 @@
+/**!
+ * byte - benchmark/buffer_toString_fromCharCode.js
+ *
+ * Copyright(c) tangyao and other contributors.
+ * MIT Licensed
+ *
+ * Authors:
+ *   tangyao <2001-wms@163.com>
+ */
+
+'use strict';
+
+/**
+ * Module dependencies.
+ */
+
+var Benchmark = require('benchmark');
+var benchmarks = require('beautify-benchmark');
+
+function getRawString(_bytes, index, length) {
+  var data = [];
+  for (var pos = index, end = index + length; pos < end; pos++) {
+    var ch = _bytes[pos];
+    if (ch < 0x80) {
+      data.push(ch);
+    } else if ((ch & 0xe0) === 0xc0) {
+      var ch1 = _bytes[++pos];
+      var v = ((ch & 0x1f) << 6) + (ch1 & 0x3f);
+      data.push(v);
+    } else if ((ch & 0xf0) === 0xe0) {
+      var ch1 = _bytes[++pos];
+      var ch2 = _bytes[++pos];
+      var v = ((ch & 0x0f) << 12) + ((ch1 & 0x3f) << 6) + (ch2 & 0x3f);
+      data.push(v);
+    }
+  }
+  return String.fromCharCode.apply(null, data);
+}
+
+var suite = new Benchmark.Suite();
+
+var buffer = new Buffer('eda0bdedb880577777e982a3', 'hex');
+
+suite
+.add('buffer.toString', function () {
+  buffer.toString('utf8', 0, 12);
+})
+.add('getRawString', function () {
+  getRawString(buffer, 0, 12);
+})
+
+.on('cycle', function(event) {
+  benchmarks.add(event.target);
+})
+.on('start', function(event) {
+  console.log('\n  node version: %s, date: %s\n  Starting...', process.version, Date());
+})
+.on('complete', function done() {
+  benchmarks.log();
+})
+.run({ 'async': false });

lib/byte.js

@@ -170,6 +170,7 @@ Object.keys(numbers).forEach(function (type) {
   var getMethod = 'get' + type;
   var handles = numbers[type];
   var size = handles.size;
+  var isFloat = type === 'Float';
 
   ByteBuffer.prototype[putMethod] = function (index, value) {
     // index, value
@@ -198,7 +199,8 @@ Object.keys(numbers).forEach(function (type) {
     var handle = this._order === BIG_ENDIAN
       ? handles.readBE
       : handles.readLE;
-    return this._bytes[handle](index);
+    var rs = this._bytes[handle](index);
+    return isFloat ? Number(rs.toLocaleString()) : rs;
   };
 });
 

test/byte.test.js

@@ -18,6 +18,7 @@
 var should = require('should');
 var Long = require('long');
 var ByteBuffer = require('../');
+var debug = require('debug')('byte');
 
 describe('byte.test.js', function () {
   describe('new ByteBuffer()', function () {
@@ -134,16 +135,23 @@ describe('byte.test.js', function () {
       bytes.getFloat().should.equal(0);
       cases.forEach(function (item) {
         bytes.order(ByteBuffer.BIG_ENDIAN);
+        debug('putFloat', item[0]);
         bytes.putFloat(0, item[0]);
         bytes.toString().should.equal(item[1]);
-        String(bytes.getFloat(0)).should.containEql(item[0]);
+        bytes.getFloat(0).should.containEql(item[0]);
 
         bytes.order(ByteBuffer.LITTLE_ENDIAN);
         bytes.putFloat(0, item[0]);
         bytes.toString().should.equal(item[2]);
-        String(bytes.getFloat(0)).should.containEql(item[0]);
+        bytes.getFloat(0).should.containEql(item[0]);
       });
+
+      bytes.position(0);
+      bytes.putFloat(2.3);
+      bytes.getFloat(0).should.eql(2.3);
+
     });
+
   });
 
   describe('putInt(), getInt()', function () {