Newsgroups: comp.lang.c
Path: utzoo!henry
From: henry@zoo.toronto.edu (Henry Spencer)
Subject: Re: #define forever for(;;)
Message-ID: <1990Oct22.230706.24401@zoo.toronto.edu>
Organization: U of Toronto Zoology
References: <250@motto.UUCP>
Date: Mon, 22 Oct 90 23:07:06 GMT

In article <250@motto.UUCP> andrew@motto.UUCP (Andrew Walduck) writes:
>>#define ever (;;)
>>for ever
>>	{
>>	...
>Is this really defined to loop forever?? Does ANSI guarantee this
>behaviour? 

It has been a property of C since the start that "for (;;) <statement>"
is an infinite loop.  ANSI, naturally, has reaffirmed this.

Incidentally, "#define ever (;;)" is a habit that most C programmers
grow out of.  It adds nothing to the readability and tends to confuse
auxiliary tools like paragraphers and cross-referencers.
-- 
The type syntax for C is essentially   | Henry Spencer at U of Toronto Zoology
unparsable.             --Rob Pike     |  henry@zoo.toronto.edu   utzoo!henry