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From: drw@cullvax.UUCP (Dale Worley)
Newsgroups: comp.lang.c
Subject: Portable integer types
Message-ID: <1103@cullvax.UUCP>
Date: Thu, 16-Apr-87 14:36:52 EST
Article-I.D.: cullvax.1103
Posted: Thu Apr 16 14:36:52 1987
Date-Received: Sun, 19-Apr-87 06:31:32 EST
Organization: Cullinet Software, Inc., Westwood, MA
Lines: 24

Under the new ANSI standard, if you want to, say, define a type
'int12' that has at least 12 bits (signed), you can write:

#include <limits.h>
#if CHAR_MAX >= 2047
typedef signed char int12;
#elif SHRT_MAX >= 2047
typedef signed short int12;
#elif INT_MAX >= 2047
typedef signed int int12;
#elif LONG_MAX >= 2047
typedef signed long int12;
#else
#error No integer type wide enough for 12 bits!
#endif

And it's portable!

Dale
-- 
Dale Worley		Cullinet Software
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