Article View: comp.windows.x
Article #25565Problem with typdef of Bool
From: lmjm
Date: Sun, 10 May 1987 13:30
Date: Sun, 10 May 1987 13:30
28 lines
1392 bytes
1392 bytes
In serveral of the utility sources (and once in Xlib) there is a definition of Bool:-
typedef enum _bool {FALSE, TRUE} Bool
Later on there are various places where you get:-
Bool somevar;
if(!somevar)...
Yet as far as I can recall ! is not defined to work over elements
enum's it was only allowed due to over generous implementation of
enum's in PCC. I was using a version of the compiler written from
scratch and it rejected everyone of these. Using the more old
fashioned
typedef int Bool;
#define FALSE 0
#define TRUE 1
works just as well and is not a questionable construct.
Lee.
--
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: arc1-ca.pugleaf.net!utzoo!mnetor!seismo!gatech!hao!ames!ucbcad!ucbvax!doc.ic.ac.UK!lmjm From: lmjm@doc.ic.ac.UK Newsgroups: comp.windows.x Subject: Problem with typdef of Bool Message-ID: <8705101430.a026906@ivax.doc.ic.ac.uk> Date: Sun, 10-May-87 09:30:50 EDT Article-I.D.: ivax.8705101430.a026906 Posted: Sun May 10 09:30:50 1987 Date-Received: Wed, 13-May-87 01:09:43 EDT Sender: usenet@ucbvax.BERKELEY.EDU Distribution: world Organization: The ARPA Internet Lines: 28