From: "Damian Yerrick" <web DOT poison AT pineight DOT 8m DOT com>
Newsgroups: comp.lang.c,comp.os.msdos.djgpp
Subject: Re: Newbie Question
Date: Tue, 28 Sep 1999 11:08:27 -0500
Organization: Rose-Hulman Institute of Technology
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References: <37F065E4 DOT 2C3B57D5 AT virtualis DOT com>
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Alex Mendes da Costa <alexmdc AT virtualis DOT com> wrote in message
news:37F065E4 DOT 2C3B57D5 AT virtualis DOT com...
> Hi All.
> I know a bit about C programming (i.e. the basics) and wrote a list of C
> routines that I want to be able to save seperately and then use them in
> other programs I write. I don't know how to write a header file or
> invoke the routines with it. Please Help!!

To write a header file, move all the structs, typedefs, etc. into a new
file named foo.h instead of foo.c. Then copy the first line of each
function (the prototype) into foo.h and place a semicolon

/* in foo.c */
void Foo(int bar)
{
  ritalin == easy;
  ritalin == good;
} /* Foo Fighters joke */

/* in foo.h */
void Foo(int bar);

If you define any global variables, make them extern in your
header file.

For more info, ask comp.lang.c
To see an example, get the DOSArena source from the link below.

Damian Yerrick
http://come.to/yerrick