I was wondering how eval EXPR compares. We have the following without eval EXPR:
BEGIN {
if ($^O =~ /win32/) {
require Win32::TieRegistry;
import Win32::TieRegistry Delimiter=>"/", ArrayValues=>0;
}
}
The following would be the equivalent using eval EXPR and a minimal expression:
BEGIN {
if ($^O =~ /win32/) {
my @import = ( Delimiter=>"/", ArrayValues=>0 );
eval "use Win32::TieRegistry \@import; 1"
or die $@;
}
}
Or if you extended the expression beyond the necessary:
BEGIN {
if ($^O =~ /win32/) {
eval 'use Win32::TieRegistry Delimiter=>"/", ArrayValues=>0; 1
+'
or die $@;
}
}
So it looks like there's no gain from using eval EXPR.
-
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>
<u> <ul>
-
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
intervention).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.
|