Finding Absolute Value in C

This is a discussion on Finding Absolute Value in C within the C Programming forums, part of the General Programming Boards category; Hello! Learning C--writing a program that tells if an entered # is positive/negative and gives the absolute value. I have ...

  1. #1
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    Question Finding Absolute Value in C

    Hello!
    Learning C--writing a program that tells if an entered # is positive/negative and gives the absolute value. I have the pos./neg. part all set, but I am needing help with the AV part. C did not understand:
    absval=|number|
    So I was wonder how can I get C to understand an AV?
    Thanks in advance
    :-)

  2. #2
    ATH0 quzah's Avatar
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    IIRC, an absolute value is the positive version of the number. Thus, if you enter 1, the absolute value is 1. If you enter -2, the absolute value is 2.

    a=b<0?0-b:b;

    Quzah.
    Hope is the first step on the road to disappointment.

  3. #3
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    Smile

    Thanks!
    It works now!

  4. #4
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    Arrow

    umm, one last thing,
    what would be the longhand of:
    a=b<0?0-b:b;
    I mean, using if and elses.
    thanks

  5. #5
    End Of Line Hammer's Avatar
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    Originally posted by Unregistered
    umm, one last thing,
    what would be the longhand of:
    a=b<0?0-b:b;
    I mean, using if and elses.
    thanks
    That's a bit too easy, you should try it yourself

    Look, this how the shorthand works:

    >Result = (TestMe)?ReturnThisIfTrue:ReturnThisIfFalse;

    Now, I'm sure you know, or can easily find out how the long hand structure is made up. Translation from one to the other is then easy.

    When all else fails, read the instructions.
    If you're posting code, use code tags: [code] /* insert code here */ [/code]

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