From: dontmailme AT iname DOT com (Steamer)
Newsgroups: comp.os.msdos.djgpp
Subject: Re: implicite declaration warning?
Date: Fri, 04 Aug 2000 13:14:03 GMT
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References: <8medee$kd5$1 AT nnrp1 DOT deja DOT com>
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To: djgpp AT delorie DOT com
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sachsen001 AT my-deja DOT com wrote:

> I'm new to c and I would like to know how to avoid the warnigs I get
> when I
> compile
> this part of code with all warnings turned on.
> The programm itself works fine.
> It's important that no warnings are reportet because the grader
> programm of
> various
> coding contests don't accept programms that produce warnings.
> 
> the warnings are:
> implicite declaration of function 'memmove'
> implicite declaration of function 'v'

You need to learn about prototypes.  The prototype for `memmove'
is in string.h, so put

    #include <string.h>

at the beginning of the file.  The function `v' is your own, so put
a prototype for it at the beginning of the file:

    int v(void);

(Or just put the function `v' before the function that uses it.)