From: "Edmund Horner" <ejrh AT paradise DOT net DOT nz>
Newsgroups: comp.os.msdos.djgpp
References: <394BC51F DOT B6B956C1 AT ne DOT infi DOT net>
Subject: Re: free crashes
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Date: Sun, 18 Jun 2000 17:30:03 +1200
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To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp
Reply-To: djgpp AT delorie DOT com

we would need to know exactly how your bmp variable was created.

are you using allegro, and is bmp a BITMAP variable?  if so, it's better to
use destroy_bitmap(), unless of course you're doing something really clev
er.

generally free() will work only if the pointer you're trying it on was
created with malloc().  free() will only work once; afterwards, the pointer
will be invalid and shouldn't be dereferenced.

"Martell" <crazy AT ne DOT infi DOT net> wrote in message
news:394BC51F DOT B6B956C1 AT ne DOT infi DOT net...
> my program works fine, except when the line at the very end of my code
> comes along:
>
> free(bmp.data);
>
> then it crashes.  what in the world could cause this?!
>