Find first and last set bit of a long integer: Difference between revisions

One thing that is evident, if you study the various ways to implement these functions, is that Fortran is ill suited, in a way most high-level languages have been ill- suited since the beginning of time: they do not have built in ''unsigned'' integers ''with ''overflow explicitly allowed''. ISO standard C does (and thus so does ATS, because its integers are exactly C integers). But this is unusual, outside of C and its relatives, and (I would imagine) owes to C's origins as a replacement for assembly language.

<lang fortran>! As was already pointed out, Fortran already has intrinsic functions that

! that should compile to efficient code, such as a single machine