Re: Preventing warnings

[Richard Stallman]

I think this warning is starting to happen for valid code because of
64-bit machines.

    You can avoid it by using unsigned types.  I think that something like
    this will do the trick:

    #define FIXNUM_OVERFLOW_P(i)                                        \
      ((unsigned long long)(i) > MOST_POSITIVE_FIXNUM           \
       && (unsigned long long)(i) < MOST_NEGATIVE_FIXNUM)

Thanks.  I will ask people to give that a try.

Is this documented as a way to avoid problems with that warning?