#!./main

#include <stdio.h>

int x = 21;

int   foo(void) { return x + x; }
char *bar(void) { return "bye bye"; }

int main(int argc, char **argv)
{
    printf("hello, world %d %s\n", foo(), bar());
    int x  = 42;
    int *p = &x;
    printf("x is %d p is %p\n", *p, p);
    *p = 666;
    printf("x is %d %d\n", x, *p);
    x = 123;
    printf("x is %d %d\n", x, *p);
    for (x = 0; x < 10; ++x) printf("%d\n", x);
    return 0;
}

// Local Variables:
// mode: c
// End: