Original Post
Hi!
Every one is talkin about memory leaks if your not careful with memory alocaiton and deallocation. So i have always wondered how can you notice if your game leaks memory?
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memory leaks
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The computer will slow down as the program runs. And if it''s a serious leak, then the computer may stay slow after the application has finished.
But if you want to be more high-tech about it, then I expect there are tools to monitor and log memory levels which would help you see if there is a leak.
As for finding the source of the leak - that''s harder, sometimes there are clues - but it depends on the specific case.
John B
But if you want to be more high-tech about it, then I expect there are tools to monitor and log memory levels which would help you see if there is a leak.
As for finding the source of the leak - that''s harder, sometimes there are clues - but it depends on the specific case.
John B
If your performance goes downhill the longer your game is running, or if you can see the memory usage climbing up in the windows task manager.
Helpful links:
How To Ask Questions The Smart Way | Google can help with your question | Search MSDN for help with standard C or Windows functions
Helpful links:
How To Ask Questions The Smart Way | Google can help with your question | Search MSDN for help with standard C or Windows functions
OK thanks!
On some operating systems, the program will actually crash on exit if it doesn''t release all of its memory. I don''t know if it''s supposed to do this, but it does on my system (winME). It is useful in a way because it lets you know when you have a leak.
If you want to detect leaks from within your program, there are ways to do it in C++ I believe, by overloading the new and delete operators.
If you want to detect leaks from within your program, there are ways to do it in C++ I believe, by overloading the new and delete operators.
If you want to detect memory leaks (info shamelessly stolen from this flipCode thread) using MSVC, you can do something like this. First, include this either at the top of the files you want to check for leaks, or in another header file that is included in everything.
Then just compile in debug mode and start debugging, and when the program ends, it will report every memory leak along with the line where the memory was allocated, which should give you a hint where to look. Good luck
.
Anthracks
edit: formatting.
[edited by - Anthracks on April 21, 2002 7:39:44 PM]
#ifdef _DEBUG
#include <crtdbg.h>
#define new new(_NORMAL_BLOCK,__FILE__, __LINE__)
#endif
And then in your main or WinMain function, put this:
#ifndef NDEBUG
int flag = _CrtSetDbgFlag(_CRTDBG_REPORT_FLAG); // Get current flag
flag |= _CRTDBG_LEAK_CHECK_DF; // Turn on leak-checking bit
_CrtSetDbgFlag(flag); // Set flag to the new value
#endif
Then just compile in debug mode and start debugging, and when the program ends, it will report every memory leak along with the line where the memory was allocated, which should give you a hint where to look. Good luck
.Anthracks
edit: formatting.
[edited by - Anthracks on April 21, 2002 7:39:44 PM]
quote:
Original post by Anthracks
First, include this either at the top of the files you want to check for leaks, or in another header file that is included in everything.
Unfortunately, it doesn''t work that way, as it just ends up reporting the name of the header file as where the memory was allocated. You need to explicitly put it in every .CPP file. *sigh*
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