From:	"John M. Aldrich" <fighteer AT cs DOT com>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: newbie question
Date:	Fri, 03 Jan 1997 18:55:15 -0800
Organization:	Two pounds of chaos and a pinch of salt
Lines:	43
Message-ID:	<32CDC693.7051@cs.com>
References:	<32cd9e4f DOT 6800703 AT news DOT value DOT net>
Reply-To:	fighteer AT cs DOT com
NNTP-Posting-Host:	ppp211.cs.com
Mime-Version:	1.0
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Wild Thing wrote:
> 
> sorry about the bad example, i'm just learning c and had to think of
> it off the top of my head.. anyhow, when i try to compile it under
> rhide with djgppv2 it says "warning: newFunction() has no data type or
> something or other".. but the program works fine if i remove the
> prototype at the top.. is this normal?

Yes, and it's because you are declaring your functions with default
return types.  This is a very bad; even unsanitary habit to get into, so
it's best you break it ASAP.  Here's code that doesn't give any
warnings, even with -Wall (which I strongly suggest you use).  The extra
spacing and formatting is my own; feel free to adopt this style or any
other you choose.  :)

// my c program
#include <stdio.h>
#include <conio.h>

int newFunction( int i );     // prototype

int main( void )
{
    int i = 5;
    clrscr( );
    printf( "blah blah" );
    newFunction( i );
    return 0;
}

int newFunction( int i )
{
    printf( " %d", i );
    return 0;
}

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