PERL Beginners - my (fooref) = shift;

Author

my (fooref) = shift;

Matthew Sacks

2005-04-27, 8:56 pm

I see many examples in the camel book where a
subroutine takes one argument and the one argument is
an array ref.

my (foo_ref) = shift;

There is however at least one example where it is

my foo_ref = shift;

I am trying to figure out if this matters. What would
shift care about list context? shift should still
yield one thing an array ref??? See page 356 in
the camel book, and page 224. (I think).
matthewsacks1415@yahoo.com

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John W. Krahn

2005-04-27, 8:56 pm

Matthew Sacks wrote:
> I see many examples in the camel book where a
> subroutine takes one argument and the one argument is
> an array ref.
>
> my (foo_ref) = shift;
>
> There is however at least one example where it is
>
> my foo_ref = shift;
>
> I am trying to figure out if this matters. What would
> shift care about list context? shift should still
> yield one thing an array ref??? See page 356 in
> the camel book, and page 224. (I think).
> matthewsacks1415@yahoo.com

shift() returns a scalar in either list context or scalar context so both
statements do the same thing.

John
--
use Perl;
program
fulfillment

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