Nathan Torkington <[EMAIL PROTECTED]> writes:
> Edward Peschko writes:
> > Ok, question here. Are these exegesises 'blessed'? What is open to
> > debate on this?
>
> As Simon says, ask whatever questions you want.
>
> > print "Post order: "; show($root,$post); print "\n";
> > would be better off written as:
> > print "Post order: &show($root, $post)\n";
> > wouldn't it?
>
> Yes, except that you're relying on show() not returning a value there.
> If show() was written so that it happened to have a print statement as
> the last thing in the sub, then you'd get random 1s in your output.
Am I the only one here who's confused?
How does the printing happen in the correct order? I mean, if I said
my $x = "Post order: &show($root, $post)\n";
print $x;
then (I hope) we're agreed printing would happen in the *wrong* order
(first the output of show($root, $post), then the value of $x (and $x
eq "Post order: \n").
So how come `print' gets to mung about with evaluation order?
[...]
Hoping for illumination,
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