Visual Studio内存泄漏检测未打印文件名和行号 [英] Visual Studio memory leak detection not printing file name and line number

问题描述

我想检查程序是否存在内存泄漏，并找到此Microsoft文章.

I want to check my program for memory leaks and found this Microsoft article.

我完全关注了这篇文章并添加了

I thoroughly followed the article and added

#define CRTDBG_MAP_ALLOC
#include <stdlib.h>
#include <crtdbg.h>

和

_CrtDumpMemoryLeaks();

程序退出时.

它可以正确地将所有内存泄漏信息转储到我的输出窗口中，但这是问题所在:

It properly dumps all the memory leak info in my output window, but here's the problem:

它不会显示内存泄漏所在的文件名和行号！

在文章中说，使用#define _CRTDBG_MAP_ALLOC可以打印文件名和行号，但不适用于我.

It says in the article that with #define _CRTDBG_MAP_ALLOC it prints the file name and line number, but it doesn't for me.

我的输出看起来像这样

Detected memory leaks!
Dumping objects ->
{3456} normal block at 0x038F81E8, 560 bytes long.
 Data: <       A       B> 00 00 00 00 00 00 10 41 00 00 00 FF 00 00 E6 42 
{3447} normal block at 0x038F8170, 56 bytes long.
 Data: < B    ^  B      > 80 42 90 03 10 02 5E 08 80 42 90 03 00 00 CD CD 
{3440} normal block at 0x038F86B0, 840 bytes long.
 Data: <       A       B> 00 00 00 00 00 00 10 41 00 00 00 FF 00 00 A8 42 
...

所以我不能真正使用它...也按F4转到该行不起作用.

So I can't really work with that... also pressing F4 to go to the line doesn't work.

能请你帮我吗?

推荐答案

我希望这对您有帮助，如果您尚未弄清楚@ A.D是否适用于Win32应用程序，我们需要重写新的运算符.不幸的是，它不适用于MFC应用程序.:(

I hope this helps if u havent figured out @A.D, works for win32 applications, we need to override the new operator. unfortunately it doesnot work for MFC application.:(

#define _CRTDBG_MAP_ALLOC
#include<iostream>
#include <crtdbg.h>
#ifdef _DEBUG
    #define DEBUG_NEW new(_NORMAL_BLOCK, __FILE__, __LINE__)
    #define new DEBUG_NEW
#endif
int main() 
{
_CrtSetDbgFlag ( _CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF ) ;
char *a = new char[10];
return 0; 
}

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