modification of passed in array
You may have good reasons to do that but when I'm faced with similar situations I wonder if returning a new version of the array might be better/safer.
#! /usr/perl/bin
use warnings;
use strict;
use Data::Dumper;
sub process_array_ref {
my $initial_array_ref = shift;
my @processed_array;
for my $element (@{$initial_array_ref}){
# do something with element
# validate, normalise, error checking,
# convert to metric, skip, whatever
push @processed_array, sprintf(qq{processed: %s}, $element);
}
return \@processed_array;
}
my $initial_array_ref = ['a','b','c','d','e'];
my $processed_array_ref = process_array_ref($initial_array_ref);
print Dumper($processed_array_ref);
I often find that debugging/maintainance is easier with this approach. YMMV.
-
Are you posting in the right place? Check out Where do I post X? to know for sure.
-
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.
|