Re: equality operator question

On May 6, 5:01 am, "barcaroller" <barcarol...@[EMAIL PROTECTED]
> wrote:
> "James Kanze" <james.ka...@[EMAIL PROTECTED]
> wrote in message

>
news:89f90573-3271-45dc-b877-b45a1e7af576@[EMAIL PROTECTED]
> > No.  First of all, you never compare with true or false.

> Why not?  It's safer (and clearer) than using

>     if ( x )
>     if ( !foo() )

> By using true/false, you are making it clear that you are
> dealing with a boolean expression (as mostly intended) and not
> a variable/function that may have any value.

How is it clearer?  If the expression doesn't have type bool,
you shouldn't compare with true or false, but rather with
something of the correct type.  If the expression has type bool,
there's no point in comparing, since the whole point of the
comparison is to get a type bool.  And if you compare a boolean
expression with true or false, you'll never finish, because a
comparison is a boolean expression.

--
James Kanze (GABI Software)             email:james.kanze@[EMAIL PROTECTED]
 en informatique orient=E9e objet/
                   Beratung in objektorientierter Datenverarbeitung
9 place S=E9mard, 78210 St.-Cyr-l'=C9cole, France, +33 (0)1 30 23 00 34