As far as I've been able to determine, the only way to use the terms "strong", "weak", "static", and "dynamic" in relation to typing is something like this:

  1. A language can be dynamically typed. Languages like Perl and Ruby fit this description.
  2. A language can be statically typed. Languages like C and Haskell fit this description.
    1. A statically typed language can be strongly typed. Languages like Haskell fit this description.
    2. A statically typed language can be weakly typed. Languages like C fit this description.

I think that dynamic typing can be split into two subcategories as well — duck typing and . . . whatever the converse dynamic typing category would be called.

This raises a question, though. What do we do with a language like Objective C? It looks to me somewhat like it's both a duck typed language and a static, weakly typed language. Of course, I could just be wrong about the whole thing.

print substr("Just another Perl hacker", 0, -2);
 - apotheon
CopyWrite Chad Perrin

In reply to Re: Perl 6: Static/Dynamic Strong/Weak Type Systems by apotheon
in thread Perl 6: Static/Dynamic Strong/Weak Type Systems by tomazos

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.