#include 
    
     #include 
     
      typedef struct Hello{    unsigned h: 3,              m: 1,             l: 12;} Hello;int main(){    int h;     for (h=0; h < 10000; h++){    Hello *hello = (Hello*)(&h);    //printf("low:%d\nhigh:%d\n", hello->l, hello->h);    //printf("low:%d\nhigh:%d\n", h>>3, h>>13<<3);    printf("h = 0x%x, Hello={l=%x, m=%x,h=%x}\n",h ,hello->l,hello->m, hello->h);    printf("high:hello.h= h%8 = %x and hello.h=%x\n",h%8 , hello->h);    printf("last: h>>12 = %x \n",h>> 4);    assert(hello->l == h >> 4 );    assert(hello->m == (h & 15) >> 3);    assert(hello->m == h % 16 /8);    assert(hello->h == h % 8 ); }}