Re: support for bitwise comparison of floats

[Bruno Haible]

PS: I wrote:
>   - 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 for glibc/Alpha systems and maybe older OSF/1 systems. On OSF/1 5.1,
things appear to be better.

Bruno