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From: trt@rti.rti.org (Thomas Truscott)
Newsgroups: comp.misc
Subject: Re: "Invalid null command"
Summary: more portable "null" command
Message-ID: <1991Apr2.162016.5724@rti.rti.org>
Date: 2 Apr 91 16:20:16 GMT
References: <1991Apr2.005620.11434@ico.isc.com>
Organization: Research Triangle Institute, RTP, NC
Lines: 41

The IEFBR14 posting is one of those pleasant surprises on Usenet,
a must-have program for the thoughtful programmer's toolchest.
But it included neither Makefile nor man page, was that an oversight?

Alas IEFBR14.c seems to have portability problems.
A proposed revision is included below.
I am no language-lawyer, and am uncertain if main's value must be
declared (int, or void?), or whether one must declare
function arguments that are unused.
But I am confident that a few more revisions will yield a marvel,
a trophy even for Ritchie himself!
	Tom Truscott
----------------
(Revised lines preceded with '**')

**	#if defined(vms)
**	/* avoid VMS install-specific problems */
**	#include stdlib.h
**	#include locale.h
**	#else
	#include <stdlib.h>
	#include <locale.h>
**	#endif

**	/* System-specific exit status (K&R 2nd Ed, page 252) */
**	#if !defined(EXIT_SUCCESS)
**	/* Should print a warning here, but cannot in ANSI C */
**	#define EXIT_SUCCESS 0
**	#endif
	
	#ifndef	lint
	static char *sccsid = "%W% - %E%";
	#endif
	
	/*ARGSUSED*/
**	main(int argc, char *argv[], char *envp[])
	{
		setlocale(LC_ALL, "");
**		exit(EXIT_SUCCESS);
**		/* NOTREACHED */
	}