Ludovic Courtès wrote: > on alpha*-linux-gnu, `-mieee' is apparently not needed: > > --8<---------------cut here---------------start------------->8--- > #include <math.h> > > int > main (int argc, char *argv[]) > { > return isnan (NAN); > } > --8<---------------cut here---------------end--------------->8---
It's not needed for this particular program, but for overflow and division by zero. Overflow and division by 0.0 lead to SIGFPE by default, on alpha-*-* platforms. Bruno