Petr:
Thanks. Your solution led me to conclude that you can't do this:
prime : true
while [ prime and ... ] [ .. ]
Seems rebol does not interpret 'prime as true in this case. The workaround
is to state:
while [ (prime = true) and (...) ] [ .. ]
You have to explicitly state the conditions in the while clause. Strange ..
Joe
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, October 03, 2000 10:20 AM
To: [EMAIL PROTECTED]
Subject: [REBOL] while statement problem Re:
[EMAIL PROTECTED] wrote:
> Anyone,
>
> Just learning REbol and need some explanation as to how to do this:
>
> while [ prime and test <= square-root number ] [..]
look at 'all and 'any functions ....
while [ all [(prime <= square-root number) (test <= square-root number)]
....
parens () nod needed ...
not sure if it's what you wanted to achieve ...
btw: and should work imho too, just use parens ...
while [(prime <= square-root number) and (test <= square-root number)] ....
Cheers,
-pekr-
>
>
> Rebol complains that i can't use an and . Can multiple conditions be
placed
> in the while clause ??? If so, how do you do it?
>
> Thanks in advance!
>
> Joe
