1void param_test(char my_char, char my_char_2);
2void sub0(void);
3void sub1(char *my_char);
4
5int main(int argc, char **argv)
6{
7  char my_char = 'y';
8
9  param_test('y', 'z');
10  sub0();
11  sub1(&my_char);
12
13  return 0;
14}
15