You create a symbolic reference like this:
Doesn't look like a symbolic reference, does it? But it is.
It isn't the creating of symbolic references that is a
problem; it is using symbolic references. You use a symbolic
reference just like you use a regular reference. So:
is where we have a problem. But it is only a problem if
$a doesn't contain a real (non-symbolic) reference. That
is why use of symbolic references (and not creation of
them) is only caught at run time.
Like I said elsewhere, "unsafe" doesn't make a lot of sense
to me in discussing strict.pm. strict.pm helps Perl to
catch things that are probably simple programmer mistakes.
By catching them explicitly, you usually save time in trying
to find the mistake and fix it.
(but my friends call me "Tye")
Are you posting in the right place? Check out Where do I post X? to know for sure.
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
Want more info? How to link or
or How to display code and escape characters
are good places to start.