Path: utzoo!mnetor!uunet!husc6!bbn!bbn.com!rsalz
From: rsalz@bbn.com (Rich Salz)
Newsgroups: comp.lang.c
Subject: Re: 'C' style etc... (really multi-char constants)
Message-ID: <632@fig.bbn.com>
Date: 15 Apr 88 15:20:53 GMT
Organization: BBN Laboratories, Cambridge MA
Lines: 20

>I never tried case 'ABCD' on a pdp-11, but I found case 'AB' quite
>useful.

The following is only slightly longer and completely portable:
	case ('A' << 8) | 'B' :
if you know how big |int| and |long| are on the target machine, then
you can extend this as necessary.  I've used the following macro
for code that's had to run on the Vax and Pyramid with shared semi-binary
data files.

	#define PAIR(a,b)	(((a) << 8) | (b))

	switch (c = getword(infile)) {
	case PAIR('H', 'L'):
	    ...
	case PAIR('H', 'I'):
	    ...
	}
-- 
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