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:
2001 Dec 30 17:06

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] Passing the reference to a hash - in perl
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [vox-tech] Passing the reference to a hash - in perl

On Fri, Jun 29, 2001 at 04:07:11PM -0700, Matthew Snelham wrote:
> Why do you have the 'strict refs' pragma turned on if you're bandying about
> references?  Stylistically unneeded, IMHO.

What are you talking about, my friend?  strict refs doesn't disable
using refs - it forces you to use them "correctly."  "Incorrect"
things which are disallowed include using the /name/ of a hash as its
reference, i.e.:

my %hash;
my $hashref = "hash";
%{$hashref}{'foo'} = 'bar';

"Proper" references such as

my %hash;
my $hashref = \%hash;
%{$hashref}{'foo'} = 'bar';

Are still very much allowed.

As to it being stylistically unnecessary - there are many, many Perl
programmers who would disagree with you.

In general, you should always 'use strict', which automatically
includes strict refs, vars, and subs.

This is not to say that I've never done things such as the first
example above - but I usually explicitly turn off strict refs ('no
strict refs') in order to do so.  And I avoid them altogether whenever
I can.


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:
Sunset Systems
Who graciously hosts our website & mailing lists!