https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93013
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |jakub at gcc dot gnu.org
--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Both C11 (and later) and C++14 (and later) say:
if the quotient a/b is representable in the type of the result, (a/b)*b + a%b
is equal to a; otherwise, the behavior of both a/b and a%b is undefined."
and as INT_MIN/-1 is not representable in int, INT_MIN%-1 is UB.
In C++14 it has been changed through CWG1450 which was a DR, so that the change
applies to earlier C++ standards too. Not really sure if the C change applies
to older standards too, otherwise it has been just underspecified there what
happens.
