Beefy Boxes and Bandwidth Generously Provided by pair Networks
"be consistent"
 
PerlMonks  

Comment on

( #3333=superdoc: print w/ replies, xml ) Need Help??
Wow. I had heard of prototypes in Perl (and think they are indispensable in C programming), but hadn't read up on them. ++ to Aristotle for his clear explanation (as well as others). Was there an RFC for the prototype feature in Perl that explains why it was implemented differently than C's prototypes?

In case there are non-C programmers out there, let me explain about C prototypes and why they're fantastic. For example, the string compare function strcmp has the following prototype:

    int strcmp ( const char *s1, const char *s2 );
This means that you gotta call strcmp with two char * variables, and the variable you store the result in has gotta be an int. Use anything else, and the compiler will issue a warning.

The difference already explained in numerous replies is that instead of complaining that there is a mis-match between the prototype and the call, Perl just 'fixes' the call. I wonder if there should be a use that enables a warning when Perl has 'fixed' something. Then again, that might only happen at run-time. Interesting question.

--t. alex
but my friends call me T.


In reply to Re: Are prototypes evil? by talexb
in thread Are prototypes evil? by Django

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!
  • 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, 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, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • Outside of code tags, you may need to use entities for some characters:
            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.
  • Log In?
    Username:
    Password:

    What's my password?
    Create A New User
    Chatterbox?
    and the web crawler heard nothing...

    How do I use this? | Other CB clients
    Other Users?
    Others surveying the Monastery: (8)
    As of 2014-12-26 07:43 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?

      Is guessing a good strategy for surviving in the IT business?





      Results (168 votes), past polls