/* Contributed by Anton Vasilyev. */ #include #include struct A { unsigned char a; unsigned char b:2; unsigned char c:2; unsigned char d:4; unsigned char e:4; unsigned char pad; unsigned int f; } __attribute__((packed)); struct B { unsigned char a; unsigned char b:2; unsigned char c:2; unsigned char d:4; unsigned char e; unsigned char f; unsigned char f1; unsigned char f2; unsigned char f3; unsigned char f4; } __attribute__((packed)); struct B d = {.c = 3, 4, .b = 2}; int main(void) { struct A *p; p = malloc(sizeof(struct A)); memcpy(p, &d, sizeof(struct A)); if (p->a != 0) { free(p); } if (p->b != 2) { free(p); } if (p->c != 3) { free(p); } if (p->d != 4) { free(p); } if (p->e != 0) { free(p); } if (p->f != 0) { free(p); } free(p); }