This definitely strikes me as a bug. Per Programming Perl...
If you have a local that looks like this: 
     {
         local $var = $newvalue;
         some_func();
         ...
     }

[download]
you can think of it purely in terms of run-time assignments: 
     {
         $oldvalue = $var;
         $var = $newvalue;
         some_func();
         ...
     }
     continue {
         $var = $oldvalue;
     }

[download]
The difference is that with local the value is restored no matter how you exit the block, even if you prematurely return from that scope.

Regardless of or what variable you are local'ing in your sub, it should return it to it's orriginal value on exit -- and it certainly shouldn't affect the callers scope.

In reply to Re: Don't local(@_) by hossman
in thread Don't local(@_) by simonm

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.