On Fri, Dec 01, 2017 at 10:02:01PM +0900, Tetsuo Handa wrote: > If start == end is legal, > > for (; start < end; start = (start | (IDA_BITMAP_BITS - 1)) + 1) { > > makes this loop do nothing because 10 < 10 is false. ... and this is why we add tests to the test-suite!