Thread: how to set bit X of Y to 1?

  1. #1

    Question how to set bit X of Y to 1?

    I think x&=~(1<<y) would set bit # y to 0 but I cant figure out how to set it to 1. I tried things like x&=(1<<y) but it sets all of x to 1 and not only the bit that I need.
    Anyone know the correct algorith?

  2. #2
    of Zen Hall zen's Avatar
    Join Date
    Aug 2001
    Try x|=(1<<y).

  3. #3


    Thanks, it works. I was trying to fix that problem for 15 hours a day for 3 days and I was loosing all hope for making my program work.

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