use Perl

• Blocks in C (Score:3, Informative)

  by davorg (18)

  with two returns in a row

  Not quite. Single statement blocks in C don't need surrounding braces, so the two returns there do make sense. The first one is associated with the else branch. As the reverse indenting attempts to make clear :)
  • Re:Blocks in C (Score:1)

    by yDNA Barak (3336)

    Wait a minute. Okay, I'm no C jockey, but doesn't this mean the final return statement could never be reached?

    if (SvPOK(sv)) {
      sbegin = SvPVX(sv);
      len = SvCUR(sv);
    }
    else if (SvPOKp(sv))
      sbegin = SvPV(sv, len);
    else
      return 1; /* Historic.  Wrong?  */
    
    return grok_number(sbegin, len, NULL);

    I've got my K&R right here, buddy! ;)

    --
    The great thing about multitasking is that several things can go wrong at once.
    • Re:Blocks in C (Score:4, Informative)

      by davorg (18)

      No. The "return grok_number" still gets called if either SvPOK or SvPOKp return a true value.
      
      For example, if SvPOK returns true, then sbegin and len are set and the program execution moves to the first statement _after_ the if/else block, i.e. the "return grok_number".
      
      It's been a loong time since I wrote C, and my memory could be fading, but I'm pretty sure I'm right here.
      • Re:Blocks in C (Score:1)

        by yDNA Barak (3336) <{andrew} {at} {sweger.net}> on 2004.02.02 8:07 (#27967) Homepage

        Ah, duh. Got it. Just like what I'd want perl to do. Good thing I don't mess with C much.

        --
        The great thing about multitasking is that several things can go wrong at once.

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