Beefy Boxes and Bandwidth Generously Provided by pair Networks
Think about Loose Coupling
 
PerlMonks  

comment on

( [id://3333]=superdoc: print w/replies, xml ) Need Help??

Okay, this just has to be my brain missing something, and it's driving me crazy.

All the following code should be doing is deleting hash keys, not adding them, yes?

print scalar(keys %auto_picks), "\n"; while (my $line = <$sub_fh>) { my @data = split /\t/, $line; if (exists $auto_picks{$data[0]}{$data[1]}) { $auto_picks{$data[0]}{$data[1]} -= $data[2]; if ($auto_picks{$data[0]}{$data[1]} <= 0) { delete $auto_picks{$data[0]}{$data[1]}; if (!keys %{$auto_picks{$data[0]}}) { delete $auto_picks{$data[0]}; } } } } print scalar(keys %auto_picks), "\n";

And yet, based on my data set the first print scalar(keys %auto_picks) returns a little over 100k, and the second more than twice that. Fellow Monks, I implore you, what is the cause of my stupid here?

----------

RESOLVED: Autovivification was my problem and turning it off via the autovivification module was my solution. Thanks to those that pointed out this was my problem.

Just another Perl hooker - My clients appreciate that I keep my code clean but my comments dirty.

In reply to RESOLVED - Autovivification: How Did I End Up With a Larger Number of Hash Keys Here? by perldigious

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":



  • 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.
Log In?
Username:
Password:

What's my password?
Create A New User
Domain Nodelet?
Chatterbox?
and the web crawler heard nothing...

How do I use this?Last hourOther CB clients
Other Users?
Others contemplating the Monastery: (6)
As of 2024-03-28 19:30 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    No recent polls found