Beefy Boxes and Bandwidth Generously Provided by pair Networks
Keep It Simple, Stupid
 
PerlMonks  

Comment on

( #3333=superdoc: print w/ replies, xml ) Need Help??
Hi Monks, 'warnings' pragma carps when a script calls a function ambiguously. To be more concrete,
A subroutine you have declared has the same name as a Perl keyword, and you have used the name without qualification for calling one or the other. Perl decided to call the builtin because the subroutine is not imported. (perldiag / Ambiguous call resolved as CORE::%s(), qualify as such or use &)
I think the above diagnosis is ambiguous in the following situation:
use strict; use warnings; sub each { warn 'main::each() was called' } sub delete { warn 'main::delete() was called' } my %person = ( name => 'Ken Takakura' ); while ( my ($key, $val) = each %person ) { print "$key: $val\n"; } delete $person{name};
In this case, 'warnings' pragma complains about each %person, but the pragma considers delete $person{name} not to be an ambiguous call. I think the pragma should complain about delete, too. What's the difference between each and delete calls in the above situation?

UPDATE: This article's title (Ambiguous calls) was renamed to "'Ambiguous call' diagnosis seems ambiguous" because the former was ambiguous.


In reply to 'Ambiguous call' diagnosis seems ambiguous by anazawa

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



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • Outside of code tags, you may need to use entities for some characters:
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.
  • Log In?
    Username:
    Password:

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

    How do I use this? | Other CB clients
    Other Users?
    Others rifling through the Monastery: (11)
    As of 2014-09-16 14:45 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?

      How do you remember the number of days in each month?











      Results (31 votes), past polls