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Mail Archives: djgpp/1997/05/10/03:31:44

From: "A. Sinan Unur" <asu1 AT cornell DOT edu>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: compile warning
Date: Fri, 09 May 1997 23:41:57 -0400
Organization: Cornell University http://www.cornell.edu
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DJ-Gateway: from newsgroup comp.os.msdos.djgpp

Ross Litscher wrote:
> 
> Hi, I am kind of new to c++ and brand new to djgpp. I got about 98% of
> the following code off the internet. The problem is that I get a 
> warning after I compile this. It is as follows:
> 
> vidmode2.cpp(30) Warning: implicit declaration of function 'int
> rand(...)'

read the docs. find out that rand is declared in stdlib.h, include
stdlib.h. now, was that so hard?

> void main(void)

first, this is pure and simple C. in any case, void is not a valid
return type for main. main has to return an int. if you can't think of
values EXIT_SUCCESS and EXIT_FAILURE are good ones (also in stdlib.h.)

-- 
   Sinan
 
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