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  1. Prepare
  2. C++
  3. Introduction
  4. Pointer
  5. Discussions

Pointer

  • twahlfeld
     + 5 comments

    A common thing to do is look to see if an abs function exists. However abs is such a trivial procedure you can either make a fuction/macro/conditionals to solve it ex:

    #define abs(x) ((x) < 0 ? -(x) : (x))

    or

    int abs(int x)
{
    if(x < 0) {
        return -x;
    } else {
        return x;
    }
}