[arekm@t400 ~/test]$ cat b.c
#include <stdio.h>
#include <sys/time.h>
#include <sys/resource.h>
#include <stdlib.h>

int main() {
        struct rlimit r;
        r.rlim_cur = 11000000000;
        r.rlim_max = 11500000000;
        printf("%ld\n", atol("11000000000"));
        setrlimit(RLIMIT_AS, &r);
}
[arekm@t400 ~/test]$ gcc b.c
[arekm@t400 ~/test]$ strace -f -F -s 200 ./a.out 2>&1 |grep RLIMIT_AS
setrlimit(RLIMIT_AS, {rlim_cur=11000000000, rlim_max=11500000000}) = 0