On Thu, Nov 7, 2019 at 11:47 AM Dan Nagle via J3 <j3 at mailman.j3-fortran.org> wrote: >.. > But neither of the compilers I'm targeting support == and /= :-( > .. Can you use a recent version of GCC/gfortran for your workshop? You should have some/better success with your code examples then, including with IEEE_CLASS. Vipul