If command

This is a discussion on If command within the C++ Programming forums, part of the General Programming Boards category; I would like to know usage of the If command. An example is, ************************************************** ************** Code: varmult = (mult > ...

  1. #1
    Registered User
    Join Date
    Nov 2008
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    3

    If command

    I would like to know usage of the If command. An example is,
    ************************************************** **************
    Code:
      varmult  = (mult > 0) ? (0) : (1);
    
      mult     = MIN(MAX(ABS(mult), 1), MAXMULT);
    
      if(mult == 1) varmult = 0;
    
      if(varmult) {
    
        varmult = MAX(1, (mult * 4) / 5);
    
        sigmult = mult/4./SIG2FW;
    
      }
    ************************************************** ***************

    what is the mean of the if(varmult) ?
    best wishes

    serkan

  2. #2
    Kernel hacker
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    Farncombe, Surrey, England
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    if(varmult) is a shorter way to write if(varmult != 0). In C and C++, any variable is "true" if it's non-zero, and "false" if it's zero.

    --
    Mats
    Compilers can produce warnings - make the compiler programmers happy: Use them!
    Please don't PM me for help - and no, I don't do help over instant messengers.

  3. #3
    Registered User
    Join Date
    Nov 2008
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    3
    thank you very much Mats

    best wishes

    serkan

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