bit.cpp

#include <iostream>

using namespace std;
struct stuff {
  unsigned int field1 : 30;
  unsigned int : 2;
  unsigned int field2 : 4;
  unsigned int : 0;
  unsigned int field3 : 3;
};
int main() {
  struct stuff s = {1, 3, 5};
  cout << s.field1 << endl;
  cout << s.field2 << endl;
  cout << s.field3 << endl;
  cout << sizeof(s) << endl;
  return 0;
}