(jeffa) 3Re: Arrays

No deferrence going on here - &get_array() simple returns an array and not a reference (sub or array). Maybe this code will shed some light:

use strict;
use Data::Dumper;

print Dumper get_array();
print Dumper get_array_ref();

print Dumper scalar get_something();
print Dumper get_something();

sub get_array {
   return ('a'..'d');
}

sub get_array_ref {
   return [('a'..'d')];
}

sub get_something {
   return wantarray ? ('a'..'d') : 'scalar';
}
[download]

Also check out the difference between a list and an array

jeffa

L-LL-L--L-LL-L--L-LL-L--
-R--R-RR-R--R-RR-R--R-RR
B--B--B--B--B--B--B--B--
H---H---H---H---H---H---
(the triplet paradiddle with high-hat)

Comment on (jeffa) 3Re: Arrays Download Code

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Re: (jeffa) 3Re: Arrays by Jaspersan (Beadle) on May 07, 2002 at 00:14 UTC
thanks, i appreciate all your help :) Im going to use all that info right now ^jasper <jasper@wintermarket.org>	[reply]
Re: (jeffa) 3Re: Arrays by dsheroh (Monsignor) on May 06, 2002 at 21:56 UTC
I get (no pun intended) how the original get_array works. What I'm unclear on is why you called it with `&get_array()` instead of just `get_array()`. I'm used to seeing `\&` used when setting up references to subs, but this is the first time I've encountered `&subname()` without the backslash.	[reply] [d/l] [select]
(jeffa) 5Re: Arrays by jeffa (Bishop) on May 06, 2002 at 22:21 UTC
Oh! /smack forehead :P I only did that because that's how Jaspersan called the function. Personally, i hate prefixing function calls with the ampersand unless i am taking a reference to them, as you can probably tell from the rest of the code i posted. However, tye has chastised me for this, and i understand why - because it distinguishes your functions from Perl's internal functions. Parens are not enough: `print "Hello World!\n"; print("Hello World!\n"); &print("Hello World?\n"); sub print { print "yo!\n"; }` [download] jeffa L-LL-L--L-LL-L--L-LL-L-- -R--R-RR-R--R-RR-R--R-RR B--B--B--B--B--B--B--B-- H---H---H---H---H---H--- (the triplet paradiddle with high-hat)	[reply] [d/l]