>>>>> "Tillema," == Tillema, Glenn <[EMAIL PROTECTED]> writes:
>> my $foo_count = () = param('foo');
Tillema,> Let me guess ... param('foo') is assigned to a list ... the list is assigned
Tillema,> to $foo_count in a scalar context so the number of elements are returned.
Tillema,> Right?
Probably simpler than that. param is invoked in a list context,
so it does its listy-thing, and returns a list of N elements. This
list attempts to be assigned to the () list, which tosses everything
after the 0th element (that is, EVERYTHING) as unneeded. However,
since that list assignment op was in a scalar context, it returns
the number of original elements (not the number of kept elements),
and that's back to N again. And that N goes into $foo_count.
There's never a "list assigned to $foo_count in a scalar context"...
the phrase doesn't even make sense to me. :) You can't assign a list
to $foo_count. It can never happen. Never. A list cannot exist in a
scalar context... the guts of Perl mandates that.
--
Randal L. Schwartz - Stonehenge Consulting Services, Inc. - +1 503 777 0095
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