#!/usr/bin/perl
use strict;
# For debugging:
sub dump {
my( $name, $ref ) = @_;
require Data::Dumper;
my $dumper = Data::Dumper->new( [$ref], [$name] );
$dumper->Indent(1)->Useqq(1)->Terse(1);
print STDERR $dumper->Dump();
}
my $foo = "Test value";
dump( foo => $foo );
# Should instead used:
#&dump( foo => $foo );
# ...
produces:
abnormal program termination
Helpful, isn't it? I suspect quite a few people don't immediately see what the problem is. I also suspect that no small number of people could waste quite a bit of time trying to figure this problem out before the solution comes to them and they snack themselves in the forehead.
Adding the & or renaming the sub to debugDump or moving the sub to a module will solve the problem.
The problem is that dump is a built-in. I don't care to memorize the entire list of Perl built-ins nor to put my code at risk when new built-ins are added (rarely).
-
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.
|