From: "Cliff Rhodes" <crhodes AT flash DOT net>
Newsgroups: comp.os.msdos.djgpp,comp.lang.c
Subject: Re: Functions in struct's... possible?  How?
Date: 22 Aug 1997 03:04:52 GMT
Organization: Flashnet Communications, http://www.flash.net
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Jeff Weeks <pweeks AT execulink DOT com> wrote

> I'd like to have a function in a struct that I've created.  I realise I
> can't just stick a functions in there, so I used a pointer to a
> function. 

That's the right approach.

> char *virt = (char *)malloc(640*480*2);

Did you ever check the return value from malloc()? I think you will have a
surprise.

> driver.blit(virt);
> 
> Can C not do this?  Is there no way to call a function from a struct? 
> If there is a way (perferable a portable way!) could you please tell me.

Your method is correct. Your allocation is bad. You'll need to use the correct
method to allocate a large block for your system.