package Foo; sub new { return bless {}, shift } package main; my $x = new Foo; my $y = new Foo; print "number: ", int $x, " -- ", int $y, "\n"; print "string: $x -- $y\n";

The following is wrong. Sorry. You've got to love those Perl quirks :)

Using == will always be true when both variables point to something, even though it's not the same object. It'll probably be treated the same as "Whatever" == "Something else".

Use eq, since that will stringify your objects into the form of PackageName=HASH(0xdeadbeef). If they point to the same object, they'll have the same memory address. (the 0xdeadbeef part). If that's the case, the two string will be equal.


ar0n ]


In reply to (ar0n) Re: eq or == with references by ar0n
in thread eq or == with references 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.