#include <stdio.h>

volatile int yb;
int foo;

void blah(int t) {
    foo = (t==0)? 1: 2;
}

int main(int argc, char **argv)
{
    int x = 0xdeadbeef;
    volatile int *y = &yb;
    int i;
    int t = atoi(argv[1]);
    blah(t);
    if (t == 0) {
        printf("Using the & method\n");
        for (i=0;i<100000000;++i) *y=x & foo;
    } else {
        printf("Using the %% method\n");
        for (i=0;i<100000000;++i) *y=x % foo;
    }
    return 0;
}