------- Comment #12 from burnus at gcc dot gnu dot org 2009-01-13 21:41 ------- > Add a runtime check that x in x**y is not < 0
I'm actually against a run time check which is based on -std=, -pedantic, -W* or similar compile time diagnostic flags. I regard such trickery behind the scenes as evil and I would expect such an error only for -fcheck* Note, there is already a check for x = -1.9 y = (-2.0)**(x) It gives NaN - and with trapping that is a SIGFPE. I think that should good enough, but I don't mind having a -fcheck* option adding a run-time check. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38823
