Path: utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!thunder.mcrcim.mcgill.edu!mouse
From: mouse@thunder.mcrcim.mcgill.edu (der Mouse)
Newsgroups: comp.lang.c
Subject: Re: include files -- help needed
Message-ID: <1991Jun26.091408.5023@thunder.mcrcim.mcgill.edu>
Date: 26 Jun 91 09:14:08 GMT
References: <1991Jun7.233854.11170@arcturus.uucp> <1966@nixsin.UUCP> <1991Jun20.170144.1109@keinstr.uucp>
Organization: McGill Research Centre for Intelligent Machines
Lines: 21

In article <1991Jun20.170144.1109@keinstr.uucp>, chaplin@keinstr.uucp (chaplin) writes:

> One technique I have used to make the defines unique is to use the
> name of the header file.  Eg, in my header file foobar.h you will
> find:

> #ifndef FOOBAR_H
> #define FOOBAR_H
> ...
> #endif

I used to do that too, until I found I had two time.h files, both using
TIME_H.  So now I tack on a 32-bit hash of the file contents (computed
by wraphfile, the program that throws the construct around the file in
the first place).  Now the time.hs use different defines.

					der Mouse

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