Yes, that's exactly what I'm saying.

If exists is to return a reference, it should always return a reference. Code exists which says exists( $foo{'bar}) ? 'Exists' : 'Does not exist'. That code will break if exists returns a reference, because references always evaluate true.

If what we get from exists is a reference, we should be able to treat is like any other reference. You seem to want to be able to assign from it and dereference the copy, but deny the ability to dereferencee it directly.

Just how is that supposed to work?

After Compline,
Zaxo


In reply to Re: Re: Re: optimization - exists should return a reference by Zaxo
in thread optimization - exists should return a reference by John M. Dlugosz

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.