David Daney wrote:
Roberto Bagnara wrote:
Everyone knows that dividing a number by -1 or 1 gives
a 0 remainder. To the contrary, no one expects a%b to
raise SIFPE when b != 0.
On the contrary, since the beginning of time SIGFPE has been generated
on GCC/x86/linux under these conditions. This is wildly known.
Just because you just found out about it does not mean that 'no one'
expects it.
Indeed, I would never write this expression expecting the result to
be reliably zero, since x86 chips have treated this as a divide by
zero since the beginning of time (well 1981 :-)), a SIGFPE is quite
expected! So I guess Roberto's "no one" does not include me :-)
David Daney
