From:	Dave Bird <dave AT xemu DOT demon DOT co DOT uk>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Error General Fault Protection on quit???
Date:	Sun, 29 Aug 1999 19:07:07 +0100
Organization:	ARS HakeMongers inc...... ><_'> <_"
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References:	<7pvk33$ut4$1 AT nnrp1 DOT deja DOT com>
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In article <7pvk33$ut4$1 AT nnrp1 DOT deja DOT com>, Sid <zidharta AT yahoo DOT com>
writes
>I made a bmp loader
>it works fine but when the program quit


 Sid, the textbook suggestion for this is that you are probably
 deallocating some memory on exit,  and have done a dodgy
 deallocation of a pointer e.g. one which has already been
 reallocated (or maybe just one which is corrupted).  
 Cure the former case by setting pointers to NULL __immediately__ 
 after deallocating them.  

 I don't know whether it is possible to right a function which
 tests for an invalid pointer without bombing.  You could then
 call it in key, but rarely visited, gateways such as destructors.

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