Yeah, I know that -- but every time you want to add a parameter you have to modify the struct definition and do a make, so it's not a simple thing to do. I didn't want to confuse the post with that situation.

In Perl, if you want to add something to an arg hash, the caller and the callee need to be modified; no one else cares, and that's the way it should be.

I deleted a paragraph from my original post that talked about how I wrote a device independent video graphics module for two graphics cards (heh), CGA (if you can call 640x400 useful) and Hercules (720x348 or something like that -- ok, wikipedia says it was 720x350, close enough). To use these two cards, I would call a subsystem with function pointers for pointers to each of a dozen function pointers functions, when obviously a pointer to a structure containing function pointers would have been way more efficient way to implement that.

Like I said, it was my first big project. My coding standards have improved immensely since then -- hey, I discovered make back then and thought it was a pretty advanced tool. It was only later that I discovered it had been ported from Unix.

Alex / talexb / Toronto

"Groklaw is the open-source mentality applied to legal research" ~ Linus Torvalds

Updated Sunday August 20, 2006 at 1222 After re-reading, realized that my purple prose needed a little clarification. Old is struck through, new is in italics.


In reply to Re^3: Parsing the command line: manual or module? by talexb
in thread Parsing the command line: manual or module? by bobf

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.