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Visual Leak Detector是一款免費的檢查內存泄露的工具。最新的2.1版本可以很好的支持VS2008/2010。

點擊這里下載

安裝后，在VS中設置Tool->Options 選擇Projects and Solutions中的VC++ Directories，將Visual Leak Detector安裝路徑中的include和lib路徑設置Include Files和Library Files中，如有必要可以將安裝路徑下bin里的相應dll拷貝至System32下。

創建一個簡單的工程，其中指針b所指向的內存沒有被正確地釋放。

include<vld.h>，運行就能在output窗口看到效果啦。

輸出的部分主要分為兩塊

Call Stack部分：

是泄露內存的調用堆棧，其中顯示了泄露資源創建的位置，雙擊便可以定位到相應的代碼部分。

Data部分：

即使泄露部分的內存內容。

注：在自己機器上VS2008上，用了下1.0和1.9b的版本，都出現了不同的問題（1.0版本不能定位泄露代碼，1.9b沒有正確檢查出泄露）。2.1版本運行一切正常。

Project Description

Visual Leak Detector is a free, robust, open-source memory leak detection system for Visual C++.

It's pretty easy to use. After installing it, you just need to tell Visual C++ where to find the included header and library file.

Then it can be used with any C/C++ project simply by adding the following line to your code:
#include <vld.h> 

When you run your program under the Visual Studio debugger, Visual Leak Detector will output a memory leak report at the end of your debugging session. The leak report includes the full call stack showing how any leaked memory blocks were allocated. Double-click on a line in the call stack to jump to that file and line in the editor window.

It's a very effective way to quickly diagnose, and fix, memory leaks in C/C++ applications.

The main difference between the CRT Debug Library and VLD, is that Visual Leak Detector shows you the complete callstack used for memory allocation has led to the leak.

For example:

---------- Block 1199 at 0x04BE1058: 136 bytes ----------
Call Stack:
d:\Foobar\FooLog.cpp (26): FooLog::getInstance
d:\Foobar\FooMain.cpp (75): FooMain::init
f:\dd\vctools\crt_bld\self_x86\crt\src\crtexe.c (578): __tmainCRTStartup
f:\dd\vctools\crt_bld\self_x86\crt\src\crtexe.c (403): WinMainCRTStartup
0x759A3677 (File and line number not available): BaseThreadInitThunk
0x770C9D42 (File and line number not available): RtlInitializeExceptionChain
0x770C9D15 (File and line number not available): RtlInitializeExceptionChain
Data:
9C 33 2D 6B    74 2A 2D 6B    C8 11 BE 04    00 00 00 00     .3-kt*-k ........
00 00 00 00    70 14 BB 6C    70 14 BB 6C    00 00 00 00     ....p..l p..l....
00 00 00 00    68 14 BB 6C    68 14 BB 6C    00 00 00 00     ....h..l h..l....
00 00 00 00    6C 14 BB 6C    6C 14 BB 6C    20 12 BE 04     ....l..l l..l....
00 00 00 00    CD 00 CD CD    00 00 00 00    01 CD CD CD     ........ ........
68 14 BB 6C    78 33 2D 6B    00 00 00 00    00 00 00 00     h..lx3-k ........
00 00 00 00    01 02 00 00    06 00 00 00    00 00 00 00     ........ ........
00 00 00 00    00 00 00 00    88 11 BE 04    5C 10 BE 04     ........ ....\...
00 00 00 00    20 CD CD CD                                   ........ ........

This software is provided "AS IS" without warranty of any kind.

The project was originally developed by Dan Moulding, but they are no longer supported. Features of version 2.0 are implemented by Arkadiy Shapkin (me).