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#include <stdio.h>
/* Static initialization of bit-fields */
struct s {
signed char a: 6;
unsigned int b: 2;
};
struct t {
unsigned int c: 16;
_Bool d: 1;
short e: 8;
int : 10;
};
union u {
int u: 4;
unsigned int v: 3;
};
void print_s(char * msg, struct s p)
{
printf("%s = { a = %d, b = %d }\n", msg, p.a, p.b);
}
void print_t(char * msg, struct t p)
{
printf("%s = { c = %d, d = %d, e = %d }\n", msg, p.c, p.d, p.e);
}
void print_u_u(char * msg, union u p)
{
printf("%s = { u = %d }\n", msg, p.u);
}
void print_u_v(char * msg, union u p)
{
printf("%s = { v = %u }\n", msg, p.v);
}
/* Global initialization */
struct s glob_s = { -12, 1 };
struct t glob_t = { 123, 2, -45 };
union u glob_u_u = { -3 };
union u glob_u_v = { .v = 6 };
/* Local, static initialization */
void f(void)
{
static struct s loc_s = { -12, 1 };
static struct t loc_t = { 123, 2, -45 };
static union u loc_u_u = { -3 };
static union u loc_u_v = { .v = 6 };
print_s("loc_s", loc_s);
print_t("loc_t", loc_t);
print_u_u("loc_u_u", loc_u_u);
print_u_v("loc_u_v", loc_u_v);
}
int main()
{
print_s("glob_s", glob_s);
print_t("glob_t", glob_t);
print_u_u("glob_u_u", glob_u_u);
print_u_v("glob_u_v", glob_u_v);
f();
return 0;
}
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