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Subject: Re: Statistics needed on memory leaks for chess programs

Author: Komputer Korner

Date: 21:59:58 12/28/98

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On December 28, 1998 at 22:23:58, Robert Hyatt wrote:

>On December 28, 1998 at 18:26:47, KarinsDad wrote:
>
>>On December 28, 1998 at 17:50:59, Inmann Werner wrote:
>>
>>>Try to use some Microsoft Compilers (C++, Foxpro..). If you run some of the
>>>"sample applications" again and again, you will see the decreasing memory!
>>>
>>>I hate it, cause I have to do with it every day.
>>>
>>>Most problem is, if you create an object in the running program. Then you kill
>>>the "father". Take a look!
>>>
>>>Regards
>>>
>>>Werner
>>
>>Werner,
>>
>>I was trying to re-create what I have seen before and was unsuccessful. I could
>>create memory leaks with no problem, but the OS always cleaned it back up when
>>the application exited (as is proper). Please let me know which sample C++
>>applications you were using, which "father" objects you destroyed, and on which
>>OS.
>>
>>Thanks,
>>
>>KarinsDad
>
>
>I don't follow any of this.  IE in crafty, I "malloc()" the hash tables, I
>do _not_ free() them before I exit(0) the program.  And the memory gets freed
>up under windows just as it does under linux.  Yes I can create a thread and
>so long as a thread "lives" its resources remain allocated.  But I don't know
>of commercial chess programs that create threads so don't see where this is a
>problem.
>
>this "object" discussion loses me.  An object (in C++) is not a permanent thing
>that exists 'on its own'... it is simply a data structure that comes into being
>when you access an object constructor, and disappears when you access the
>destructor...  but when the program terminates, the objects disappear along
>with it...

Power Chess creates different threads. I have 40 Mb RAM on 1 system with WIN 95
400.950 B that supposedly has all the patches and there are system resource
leaks with certain programs.
--
Komputer Korner



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