Hi Andras,
> According to the man page on macOS, poll returns:
>
> [EINVAL] The nfds argument is greater than OPEN_MAX or the
> timeout argument is less than -1.
That explains it! So the specification of poll() is indeed different from the
Linux one.
> The check at compile time is not triggered on macOS, the following program
> prints “false”:
>
> #include <stdlib.h>
> #include <stdio.h>
>
> int main(int argc, char*argv[])
> {
> #if (int)-1 == 0xFFFFFFFF
> printf("true");
> #else
> printf("false");
> #endif
> return 0;
Hmm, too bad! I tested here with 64-bit integers with
#if (int)-1 == 0xFFFFFFFFFFFFFFFF
and it worked.
Unfortunately, "#if sizeof(int) == 4" is not allowed in C, that's why I used the
above construct.
Does anybody have a better idea?
☺/ A!ex
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