Re: ++$i++ (was Re: [PHP-DEV] call_builtin_function_array() possible?)

At 15:01 10/1/2001, Cynic wrote:

would have saved me one statement. I had to use for( $i = 0 ; $i < count( $a ) ; $x = $a[ $i++ ] , $i++ )

This is a very weird and uncommon piece of code. If it's indeed correct (which I doubt - do you want to increment it by two?) then a more common & understandable way to write it would have been $x = $a[$i], $i+=2. Saving an extra expression by adding the ultra-obscure ++$i++ is a definite 'no'. There's no logical behavior that would be both pre- and post-increment, which is implied by this weird notation... Zeev

I know, this is an 'issue' so tiny I can laugh at it, but anyway... At 13:49 10.1. 2001, Zeev Suraski wrote the following: -------------------------------------------------------------- Could you explain how this construct is useful? I can't think of any real world situation in which it's useful or even remotely makes sense. What would it even do? Remember, an expression has only one value. Zeev At 14:51 10/1/2001, Cynic wrote:

Well, this would be probably completely useless (at least I can't think of a meaningful use of this right now), but... is there a reason this can't be implemented in PHP? I know, time is a very precious commodity, and I wouldn't ask (or suggest) for an implementation of this if it would require extra work besides making pre- and post- increment / decrement in one statement. But if allowing ++$i++ (which I definitely consider useful) makes ++$i-- possible without additional effort, why disable it? It's possible to write completely useless junk software without this feature too. Lack of knowledge of C prevents me from going to try and do this myself. At 21:51 9.1. 2001, Hartmut Holzgraefe wrote the following: --------------------------------------------------------------

Cynic wrote:

At 21:16 9.1. 2001, Andrei Zmievski wrote the following:

What color is the sky on your planet? :)

I don't know, haven't checked for some time now. :) But seriously: I'm not familiar with C, nor the way this stuff is implemented in PHP, however, whether the sky here is blue or pink doesn't mean I think this wouldn't be useful.

and what's next? ++$i-- ??? -- Hartmut Holzgraefe hartmut@six.de http://www.six.de +49-711-99091-77 -- PHP Development Mailing List <http://www.php.net/> To unsubscribe, e-mail: php-dev-unsubscribe@lists.php.net For additional commands, e-mail: php-dev-help@lists.php.net To contact the list administrators, e-mail: php-list-admin@lists.php.net

------end of quote------ ____________________________________________________________ Cynic: A member of a group of ancient Greek philosophers who taught that virtue constitutes happiness and that self control is the essential part of virtue. cynic@mail.cz -- PHP Development Mailing List <http://www.php.net/> To unsubscribe, e-mail: php-dev-unsubscribe@lists.php.net For additional commands, e-mail: php-dev-help@lists.php.net To contact the list administrators, e-mail: php-list-admin@lists.php.net

-- Zeev Suraski <zeev@zend.com> CTO & co-founder, Zend Technologies Ltd. http://www.zend.com/ ------end of quote------ ____________________________________________________________ Cynic: A member of a group of ancient Greek philosophers who taught that virtue constitutes happiness and that self control is the essential part of virtue. cynic@mail.cz

-- Zeev Suraski <zeev@zend.com> CTO & co-founder, Zend Technologies Ltd. http://www.zend.com/