------- Comment #4 from burnus at gcc dot gnu dot org 2007-08-03 20:45 ------- > I then believe that we do not need isnan. A person can use > either IEEE_* when it becomes available or bind(c). I don't > see why isnan is special in comparison to isinf.
I don't see it either, but other compilers have isnan() and do not have isinf() - don't ask me why. Result is that there is some code around which uses isnan() whereas there is (close to) no code which uses isinf(). Example a code which uses isnan: www.libatoms.org Note that Fortran 2003 does not have IEEE_IS_INF, but "only" IEEE_IS_FINITE() and IEEE_IS_NORMAL(). -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32979
