Your first two examples would raise warnings galore when handling non numeric values, and the second example is simply an alphabetic sort, equivelent to sort @a

use warnings;
use strict;
my @a = qw( 2 two 1 11 12 one 3abcd 6foo );
print join( " ", sort { $a <=> $b || $a cmp $b } @a ), "\n";

__END__
Argument "two" isn't numeric in numeric comparison (<=>) at c:\temp\so
+rt.pl line 4.
Argument "one" isn't numeric in numeric comparison (<=>) at c:\temp\so
+rt.pl line 4.
Argument "3abcd" isn't numeric in numeric comparison (<=>) at c:\temp\
+sort.pl line 4.
Argument "6foo" isn't numeric in numeric comparison (<=>) at c:\temp\s
+ort.pl line 4.
one two 1 2 3abcd 6foo 11 12

[download]
and 
#...
print join( " ", sort { $a cmp $b || $a <=> $b } @a ), "\n";

__END__
1 11 12 2 3abcd 6foo one two

[download]

Yves / DeMerphq
---
Writing a good benchmark isnt as easy as it might look.

In reply to Re: Re: A generic sorting problem by demerphq
in thread A generic sorting problem by frankus

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.