Clarification: > > - On Alpha processors, division by zero (and even overflow!) leads to a > > SIGFPE > > signal by default. And it requires the use of a system call to change > > the FP exceptions control mask (the <fenv.h> routines in glibc >= 2.1, > > the __setfpucw function in glibc 2.0). memcmp is certainly much cheaper.
This is true. "By default" means in the absence of specific compiler options. > This is for glibc/Alpha systems and maybe older OSF/1 systems. On OSF/1 5.1, > things appear to be better. This was nonsense. All three systems have the problem equally. Bruno
