Here's a simple way to take the difference of sets.
use Data::Dumper;
%one = ( 'a' => 1, 'b' => 2, 'c' => 3, 'd' => 4, 'e' => 5, 'f' => 6,);
%two = ( 'a' => -1, 'e' => -2, 'i' => -3, 'o' => -4, 'u' => -5,);
print Dumper(\%one, \%two);
%tmp = %one;
delete @tmp{keys %two};
print Dumper(\%tmp);
%tmp = %two;
delete @tmp{keys %one};
print Dumper(\%tmp);
Running the above produces the following:
$VAR1 = {
'e' => 5,
'c' => 3,
'a' => 1,
'b' => 2,
'd' => 4,
'f' => 6
};
$VAR2 = {
'e' => -2,
'u' => -5,
'a' => -1,
'o' => -4,
'i' => -3
};
$VAR1 = {
'c' => 3,
'b' => 2,
'd' => 4,
'f' => 6
};
$VAR1 = {
'u' => -5,
'i' => -3,
'o' => -4
};
-
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.