Perl Syntax

[Stewart C. Russell]

Andrew Hammond wrote:
> 
> This also looks like another pretty common trick, the zero parameter
> inline function. This is often used to represent constants. Example follows.
> 
> sub INT () { 2 }

It's a bit more logical to use the 'constant' pragma:

	use constant PI    => 4 * atan2(1, 1);

Has the same effect, though.

> If you're learning perl, the best advice I can give you is to start
> every single one of your programs with "use strict;", which will not
> allow you to use barewords.

While I agree about the 'use strict;' (and would always add 'use
warnings;', and 'use diagnostics;' if you're really new to things),
barewords for hash members seem to be allowed when using strict. It does
look a bit cleaner.

 Stewart
--
The Toronto Linux Users Group.      Meetings: http://tlug.ss.org
TLUG requests: Linux topics, No HTML, wrap text below 80 columns
How to UNSUBSCRIBE: http://tlug.ss.org/subscribe.shtml