[oak perl] A Simple Problem

[Mark Bole]

David Fetter wrote:

>On Tue, Mar 01, 2005 at 12:42:40PM -0800, Kester Allen wrote:
>  
>
>>I like the module solution:
>>
>>use List::Util qw/sum/
>>@numbers = qw/3 9 12 1 2/;
>>$tot = sum ( @numbers );
>>print $tot;
>>    
>>
>
>That's neat, and easy to read, besides :)
>
>Cheers,
>D
>  
>

Agreed!  It seems that the two best solutions (as I would call them) 
bubbled up to the top immediately.  I liked one because it was built-in, 
and the other because the language was more set-oriented.

It got me thinking about the following excerpt from the List::Util man 
page, and how the comment "nice to have in the perl core, but..." isn't 
really a big problem with Perl (because it's so easily extensible, 
unlike the proprietary languages I work with).

"List::Util contains a selection of subroutines that people have 
expressed would be nice to have in the perl core, but the usage would 
not really be high enough to warrant the use of a keyword, and the size 
so small such that being individual extensions would be wasteful."

Under the following listing

http://cpan.uwinnipeg.ca/htdocs/Scalar-List-Utils/List/Util.html#suggested_additions

it took me a while to understand the precedence of the "for" and "&&", 
as well as to remember that "foreach" is just a synonym for "for".

-- 
Mark Bole
http://www.bincomputing.com
925-287-0366


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