Qt4 & Visual Studio memory leak detection

[thomaspu]

I was trying to use Visual Studios's built in memory leak detection according to
http://msdn2.microsoft.com/en-us/lib...h3(VS.80).aspx
but when I compile my project I get errors in the Qt library:

help!?
Paul

2>c:\devel\code\3rdparty\qt-4.3.3\src\corelib\tools\qbytearray.h(332) : warning C4003: not enough actual parameters for macro 'realloc'
2>c:\devel\code\3rdparty\qt-4.3.3\src\corelib\tools\qbytearray.h(332) : error C2059: syntax error : ','
2>c:\devel\code\3rdparty\qt-4.3.3\src\corelib\tools\qbytearray.h(365) : warning C4003: not enough actual parameters for macro 'realloc'
2>c:\devel\code\3rdparty\qt-4.3.3\src\corelib\tools\qbytearray.h(365) : error C2059: syntax error : ','
2>c:\devel\code\3rdparty\qt-4.3.3\src\corelib\tools\qbytearray.h(379) : warning C4003: not enough actual parameters for macro 'realloc'
2>c:\devel\code\3rdparty\qt-4.3.3\src\corelib\tools\qbytearray.h(379) : error C2059: syntax error : ','
2>c:\devel\code\3rdparty\qt-4.3.3\src\corelib\tools\qbytearray.h(382) : warning C4003: not enough actual parameters for macro 'realloc'

2>c:\devel\code\3rdparty\qt-4.3.3\src\corelib\tools\qbytearray.h(332) : warning C4003: not enough actual parameters for macro 'realloc'
2>c:\devel\code\3rdparty\qt-4.3.3\src\corelib\tools\qbytearray.h(332) : error C2059: syntax error : ','
2>c:\devel\code\3rdparty\qt-4.3.3\src\corelib\tools\qbytearray.h(365) : warning C4003: not enough actual parameters for macro 'realloc'
2>c:\devel\code\3rdparty\qt-4.3.3\src\corelib\tools\qbytearray.h(365) : error C2059: syntax error : ','
2>c:\devel\code\3rdparty\qt-4.3.3\src\corelib\tools\qbytearray.h(379) : warning C4003: not enough actual parameters for macro 'realloc'
2>c:\devel\code\3rdparty\qt-4.3.3\src\corelib\tools\qbytearray.h(379) : error C2059: syntax error : ','
2>c:\devel\code\3rdparty\qt-4.3.3\src\corelib\tools\qbytearray.h(382) : warning C4003: not enough actual parameters for macro 'realloc'

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[thomaspu]

Ah, figures, the MS header stuff has to be after all the Qt stuff. To bad it still doesn't work right.

Paul

[ConfusedSushi]

I can recommend Visual Leak Detector for memory leak detection, works very well for me.

[thomaspu]

Huh, I just tried to use it and it couldn't catch any memory leaks at all. I even started putting in memory leaks on purpose, and each time it kept saying "No memory leaks detected."

You really use this? It doesn't seem to work worth a darn. For instance, this code should leak pretty badly.

#include "vld.h"
int main () {
	char *pChar = new char[30];
	pChar = 0;
	int *pInt = new int;
	return 0; 
}

#include "vld.h"
int main () {
	char *pChar = new char[30];
	pChar = 0;
	int *pInt = new int;
	return 0; 
}

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Yet the output on the visual studio says:
Visual Leak Detector Version 1.9f installed.
No memory leaks detected.
Visual Leak Detector is now exiting.

Doesn't seem to work at all.
Paul

[thomaspu]

What sucks is that using Visual Studio's method, it picks up the memory leaks just fine, but doesn't tell me where in the world they originated from!

#define _CRTDBG_MAP_ALLOC
#include <stdlib.h>
#include <crtdbg.h>
int main () {
	_CrtSetDbgFlag ( _CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF );
 
	char *pChar = new char[30];
	pChar = 0;
	int *pInt = new int;
	return 0; 
}

#define _CRTDBG_MAP_ALLOC
#include <stdlib.h>
#include <crtdbg.h>
int main () {
	_CrtSetDbgFlag ( _CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF );
	
	char *pChar = new char[30];
	pChar = 0;
	int *pInt = new int;
	return 0; 
}

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Detected memory leaks!
Dumping objects ->
{61} normal block at 0x00335FD8, 4 bytes long.
Data: < > CD CD CD CD
{60} normal block at 0x00332A00, 30 bytes long.
Data: < > CD CD CD CD CD CD CD CD CD CD CD CD CD CD CD CD
Object dump complete.
The program '[1380] exceptions.exe: Native' has exited with code 0 (0x0).

Anyone know what I'm doing wrong here?
Paul