1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
#include <stdio.h>
struct s {
signed char a: 6;
unsigned int b: 4;
};
int f(struct s * x)
{
return (x->a)-- - ++(x->b);
}
struct s * ding(struct s * x)
{
printf ("Ding!\n");
return x;
}
int main()
{
struct s x;
x.a = 28;
x.b = 2;
printf("x = {a = %d, b = %d }\n", x.a, x.b);
printf("(x.a += 10) = %d\n", (x.a += 10));
printf("(x.b = 17) = %d\n", (x.b = 17));
printf("x = {a = %d, b = %d }\n", x.a, x.b);
printf("f(&x) = %d\n", f(&x));
printf("f(&x) = %d\n", f(&x));
printf("f(&x) = %d\n", f(&x));
printf("x = {a = %d, b = %d }\n", x.a, x.b);
ding(&x)->a = 10;
printf("x = {a = %d, b = %d }\n", x.a, x.b);
ding(&x)->a += 2;
printf("x = {a = %d, b = %d }\n", x.a, x.b);
return 0;
}
|
