There are some risks here: (I can easily come up some data to make this fail.)
use strict;
use Data::Dumper;
my @AoA = (['a,','b','c'],
['a',',b','c'],
);
my $uAoA = uniqAoA(\@AoA);
print Dumper $uAoA;
sub uniqAoA
{
my ($array) = @_;
my %res;
foreach my $ar (@{$array})
{
my $str = join (",",@{$ar});
$res{$str} = 1;
}
my @kys = keys(%res);
my @final;
foreach(@kys)
{
my @a = split(",",$_);
push @final, [ @a ];
}
return \@final;
}
This should return the orginal AoA, but it returns:
$VAR1 = [
[
'a',
'',
'b',
'c'
]
];
Problems are:
- It thought the two level 2 arrays are the same, when they are different.
- The element contained in the returned array was not originally there.
-
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.