l i n u x - u s e r s - g r o u p - o f - d a v i s
Next Meeting:
July 7: Social gathering
Next Installfest:
Latest News:
Jun. 14: June LUGOD meeting cancelled
Page last updated:
2010 Nov 30 12:20

The following is an archive of a post made to our 'vox-tech mailing list' by one of its subscribers.

Report this post as spam:

(Enter your email address)
Re: [vox-tech] subroutine arguments with PERL
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [vox-tech] subroutine arguments with PERL

On Tue, Nov 30, 2010 at 10:59:32AM -0800, Brian Lavender wrote:
> How do you tell perl to warn or not compile if you are not using
> the correct number of arguments in a subroutine? 

I don't know of a built-in pragma but you could look into Params::Validate:


"The Params::Validate module allows you to validate method or function call
parameters to an arbitrary level of specificity. At the simplest level, it
is capable of validating the required parameters were given and that no
unspecified additional parameters were passed in.

It is also capable of determining that a parameter is of a specific type,
that it is an object of a certain class hierarchy, that it possesses
certain methods, or applying validation callbacks to arguments."

It's not automatic though -- you've gotta maintain a proper call to the
validate() subs in your sub.


vox-tech mailing list

LUGOD Group on LinkedIn
Sign up for LUGOD event announcements
Your email address:
LUGOD Group on Facebook
'Like' LUGOD on Facebook:

Hosting provided by:
Sunset Systems
Sunset Systems offers preconfigured Linux systems, remote system administration and custom software development.

LUGOD: Linux Users' Group of Davis
PO Box 2082, Davis, CA 95617
Contact Us

LUGOD is a 501(c)7 non-profit organization
based in Davis, California
and serving the Sacramento area.
"Linux" is a trademark of Linus Torvalds.

Sponsored in part by:
O'Reilly and Associates
For numerous book donations.