(ref.doc)ark 021293

From: [email protected] (Andrew Koenig) (Note:
 Koenig)
Newsgroups: comp.std.c++
Subject: Re: New boolean type!?!
Date: 2 Dec 93 21:05:41 GMT


The proposal was by me and Dag Bruck.  It was accepted by about a 2:1
vote, which mirrors surprisingly accurately how I feel about the
proposal -- I think it's a good idea but not overwhelmingly so.

Very briefly,

	the type is called bool

	the bool values are called true and false

	converting numeric or pointer type to bool takes 0 to false
	and anything else to true

	bool promotes to int, taking false to 0 and true to 1

	places such as `if' and `while' statements, as well as
	the operands of && || ! (but not & | ~) are now converted
	to bool

	all operators that conceptulally return truth values return bool

	compound operators such as &= are *not* defined for bool left argument
-- 
				--Andrew Koenig
				  [email protected]