Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!uflorida!haven!adm!smoke!gwyn
From: gwyn@smoke.BRL.MIL (Doug Gwyn)
Newsgroups: comp.lang.c
Subject: Re: two chars at once...
Message-ID: <11057@smoke.BRL.MIL>
Date: 14 Sep 89 11:30:34 GMT
References: <QZ3bmsW00WB4E5BEob@andrew.cmu.edu>
Reply-To: gwyn@brl.arpa (Doug Gwyn)
Organization: Ballistic Research Lab (BRL), APG, MD.
Lines: 17

In article <QZ3bmsW00WB4E5BEob@andrew.cmu.edu> sr16+@andrew.cmu.edu (Seth Benjamin Rothenberg) writes:
>One of the nasty things it does is treat 2 characters
>as a single 2-byte integer.
>      if  "ax" = mystr         ->  if mystr[1]=>C1D9  (or something like that)
>      mystr = "AX"
>Should I just change this call to use macros, like
>    if cmp2("ax", mystr);
>    cpy2(mystr, "AX");
>or is a more direct (kludgy?) way possible?

The direct equivalent in C would be to use multi-character character
constants such as 'AX', which are ints containing the multiple
character codes "somehow".  The details of how they are represented
are implementation-dependent; however, it is probable that 'AX' would
be equal to either 'A'<<CHAR_BIT|'X' or 'X'<<CHAR_BIT|'A'.

Using 2-character strings would be more portable, of course.