in a module, i have a routine. it has a "private function" (an anonymous routine).

if i print the anonymous routine as $<>; perl says it is a CODE ref; so that's good.

when the routine is invoked with &$<>; i get the following :

Use of uninitialized value in subroutine entry at ... and Can't use string ("") as a subroutine ref while "strict refs" in u +se at ...

i could not find a good description of what these messages mean.

thanks

SIMPLE CASE :

sub A { if ( exists $OBJ->{$p} ) { my $q = $OBJ->{$p}; $q = &$<package_name>::formatThis($q); print FH "$p=$q "; } my $formatThis = sub { my $x = @_; my $y = sprintf ( "%.2f", $x); return $y; }; }

Formatting fixed by GrandFather


In reply to unitialized value in subroutine entry by Anonymous Monk

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!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • 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, details, 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, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            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.