Re: [Dev-C++] Bitwise

OK thank you for all the feedback
it was interesting seeing this
 ((a && !b) || (b && !a))

Using truth tables and logic gates I came up with
(in_A||in_B) && !(in_A && in_B)

>From Eric



----- Original Message -----
From: Per Westermark <pw...@ia...>
To: <li...@fi...>
Cc: <dev...@li...>; Eric Richards
<eri...@cl...>
Sent: Friday, June 30, 2006 3:32 AM
Subject: Re: [Dev-C++] Bitwise


Just note that the OP didn't talk about bit-wise and (&) but bit-wise
xcor, ie an operator that doesn't have a logical equivalent.

(a ^ b) is definitely shorter than ((a && !b) || (b && !a))

However, when testing two logical variables with boolean values (i.e.
always the same non-zero value for true) i't enough to write (a != b).

/Per W

On Thu, 29 Jun 2006, Fernando Lichtschein wrote:

> Eric,
>
> By convention, any expression which evaluates to zero is considered false,
> and true if it is different from zero.
>
> The comparison operators such as ==, > or != return 0 if the comparison is
> false and 1 if the comparison is true, so doing a bitwise AND between the
> two results does not make any difference compared to a logical AND (&&)
and
> does not add much to clarity.
>
> Regards,
>
> Fernando
>
>
> On 6/29/06, Eric Richards <eri...@cl...> wrote:
> >
> > Hi all
> > This works but at what problems, Can you use bitwise in a if-else or any
> > other program control statement for that matter
> >
> >
> > if (A==1 ^ B==1)
> > {
> >
> > }
> > else
> > {
> >
> > }
> >
> >
> >
> >
> > // from Eric
> >
> >
> > Using Tomcat but need to do more? Need to support web services,
security?
> > Get stuff done quickly with pre-integrated technology to make your job
> > easier
> > Download IBM WebSphere Application Server v.1.0.1 based on Apache
Geronimo
> > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
> > _______________________________________________
> > Dev-cpp-users mailing list
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> >
>
>
>
> --
> Fernando Lichtschein
> li...@fi...
>


Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job
easier
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http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
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