Re: integer divided by zero

Richard Heathfield <rjh@cpax.org.uk> writes:

On 25/04/2025 18:38, Thiago Adams wrote:

Does anyone know of any platform where integer division by zero
returns a number, or in other words, where it's not treated as an
error? I'm asking because division by zero is undefined behaviour,
but I think division by a constant zero should be a constraint
instead.

>
C? I doubt it very much.

I showed an example earlier in this thread.

A simpler example:

$ uname -ms
Linux aarch64
$ cat c.c
#include <stdio.h>
#include <stdlib.h>
int main(int argc, char **argv) {
    if (argc != 3) exit(EXIT_FAILURE);
    const int a = atoi(argv[1]);
    const int b = atoi(argv[2]);
    printf("%d / %d = %d\n", a, b, a/b);
}
$ ./c 100 7
100 / 7 = 14
$ ./c 1 0
1 / 0 = 0
$ ./c 0 0
0 / 0 = 0
$

--
Keith Thompson (The_Other_Keith) Keith.S.Thompson+u@gmail.com
void Void(void) { Void(); } /* The recursive call of the void */