Re: Evaluation of statements
| From: | Matthew Kendall | Date: | Wed, 07 Jun 2000 17:53:01 +0000 |
| Subject: | Re: Evaluation of statements | ||
| References: | 1 2 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-1236@lists.php.net to get a copy of this message | ||
"Philipp Gaschütz" <philipp@gng.de> wrote...
> which languages do you mean for example?
> C and Perl for example keep to the order in the statement
> (AFAIK at least...)
Not true for C, I think. I don't know about Perl.
My copy of the ANSI C spec says:
"Except where noted, the order of evaluation of operands of individual
operators and subexpressions of individual expressions, and the order in
which side effects take place, is unspecified."
Your particular compiler may happen to evaluate in the order you wrote, but
it does not have to. And its behaviour may change when you turn on the
optimiser, for example.