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From: ebk@iedl02.UUCP
Newsgroups: net.unix-wizards
Subject: Re: 4.2BSD ctime() arguments
Message-ID: <1738@iedl02.UUCP>
Date: Fri, 20-Apr-84 23:07:48 EST
Article-I.D.: iedl02.1738
Posted: Fri Apr 20 23:07:48 1984
Date-Received: Sun, 22-Apr-84 08:22:34 EST
Lines: 17

On any Unix system I've ever seen, time_t exists and is 32 bits.
<sys/types.h> goes back to v7, and probably further, and defines the necessary
bit widths for certain types, such as time_t, daddr_t (disk address),
caddr_t (core address), etc.  types.h could be made a bit clearer by doing
something like:
#define BIT16 int
#define BIT32 long

typedef time_t BIT32
typedef ino_t BIT16
...
...

For portability, never use int, long, etc., when referring to a system
type - use the entry from sys/types.h

John Owens