> You can apply array_diff function on the sorted and unsorted file and check the output file to see weather sort had done any modification or not.

Unlikely, please demonstrate an example of how you intend to do it with Array::Utils

I mean real code!

Cheers Rolf

( addicted to the Perl Programming Language)

update

as expected, pure nonsense!

  DB<110> use Array::Utils qw(:all)

  DB<111> @a = (8..12); @b = sort @a; @c = (@b,42)
 => (10, 11, 12, 8, 9, 42)

  DB<112> array_diff @a,@b

  DB<113> array_diff @a,@c
 => 42

[download]

In reply to Re^4: Check if sort has changed order by LanX
in thread Check if sort has changed order by HYanWong

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.