NetNews Offline 2/NetNews Offline Volume 2.iso/news/comp/lang/c-part1/5505

Internet Message Format | 1996-08-05 | 1.2 KB

Path: pegasus.montclair.edu!harmon
From: [e-mail] (Derek Harmon)
Newsgroups: comp.lang.c
Subject: Re: simple code, argc, argv, strcmp()
Date: 1 Feb 1996 13:08:37 -0500
Organization: Montclair State University
Message-ID: <[e-mail]>
References: <11f7cc$17261a.3b3@daprez>
NNTP-Posting-Host: pegasus.montclair.edu
Keywords: strcmp encode decode argc argv
X-Newsreader: NN version 6.5.0 #68 (NOV)

[e-mail] (Otis Gospodnetic) writes:
>  if (!strcmp(argv[1],"-d") || !strcmp(argv[1],"-e")) {
>    Usage();
>  }

   This is where your troubles lie.  Let's think for a second, if argv[1]
is "-d", then the first clause is false.  BUT, if argv[1] is "-d" then it
cannot also be "-e", so the second clause is true, and Usage() is called.
On the other hand, if argv[1] is "-e", then the second clause is false.
Unfortunately, argv[1] is then surely not "-d", and the first clause is true.

   Therefore, I would suggest that you only call Usage() when argv[1] is
not "-d" AND not "-e":

:   if (!strcmp(argv[1],"-d") && !strcmp(argv[1],"-e")) {

                                                  -- Stone
--
... Your program is sick!  Shoot it and put it out of its memory.