Thread: float comparisons info

  1. #1
    Registered User rogster001's Avatar
    Join Date
    Aug 2006
    Liverpool UK

    float comparisons info

    Found this very good article on the issues with float precision and using them in comparisons:

    Comparing Floating Point Numbers

    It was key to solving a crafty bug that only occured in a very particular instance of the program settings and only using an -O2 build, after debugging i realised it had to be the float comparisons in a statement. The article was a wake up call!

    Thought for the day:
    "Are you sure your sanity chip is fully screwed in sir?" (Kryten)
    FLTK: "The most fun you can have with your clothes on."

    "If I had thought of it and had some marketing sense every computer and just about any gadget would have had a little 'C++ Inside' sticker on it'"

  2. #2
    Registered User \007's Avatar
    Join Date
    Dec 2010
    Pretty interesting. I have always found floating points a bit tricky and mysterious in C~

  3. #3
    Programming Wraith GReaper's Avatar
    Join Date
    Apr 2009
    C~ ???
    Devoted my life to programming...

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