Hi Marshall,

Thanks for your response.

You are right in saying that the re-definition of a key with a new value is perfectly fine.

But this leads to a anomaly called RD (Re-Definition). The RD means re-defining a variable with a new value without using it's initial value (They say to use your later value as initial one than initializing the variable to something else and changing the variable's value without using it's initial value). The coding guide lines say to identify such cases and rectify the same.

This is one of the reason why I'm thinking of getting a warning or error from standard perl or any of it's additional packages (like use strict,warnings)


In reply to Re^2: Throw compilation error(or warning) if duplicate keys are present in hash by I_love_perl
in thread Throw compilation error(or warning) if duplicate keys are present in hash by I_love_perl

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.