From: "Georg v. Wichert" <georg AT rt DOT e-technik DOT th-darmstadt DOT de>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: hello world
Date: Wed, 12 Feb 1997 19:40:54 +0100
Organization: Technisch Hochscule Darmstadt (Germany)
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Message-ID: <33020EB6.660F@rt.e-technik.th-darmstadt.de>
References: <5draph$fhk$2 AT thor DOT atcon DOT com>
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To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp

Golem wrote:
> 
> ugh! i can't beleive i got an error for djgpp when i first ran it!!
> here is my source code, saved as 'hello1.cc':
>  main() {
>    printf("Hello world!");
>  }
> and when i used the msdos command line:
>  gcc -c -Wall hello1.cc
> i get a 'warning: implicit declaration of function 'int printf(...)'
> what the..?? 

THis is not an error, but the compilers very kind way of telling 
you to learn to read your C textbooks carefully!

if you do not include the header file which has the printf prototype,
the compiler assumes

int printf(int);

and informs you about the fact that this may result in servere
errors.

for the rest of your questions I recommend you to read the FAQ available
at the same place where you got the compiler package.

Bye Georg