/*
 * =========================================================================
 *
 * FileName: bitdomain.cpp
 *
 * Description:
 *
 * Version: 1.0
 * Created: 2018年05月22日 13:31:47
 * Last Modified: 2018年05月22日 14:01:12
 * Revision: none
 * Compiler: gcc
 *
 * Author: zt ()
 * Organization:
 *
 * =========================================================================
 */

#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <stddef.h>
#include <string.h>
#include <signal.h>
#include <errno.h>
//#include <unistd.h>
//#include <netinet/in.h>
//#include <arpa/inet.h>
//#include <sys/socket.h>

#include <iostream>
#include <memory>
#include <algorithm>
#include <vector>
#include <thread>
#include <mutex>
#include <map>
#include <list>
#include <string>
#include <functional>


//#pragma pack(push)
//#pragma pack(1)
typedef union
{
 uint32_t data;
 struct
 {
 uint32_t a: 12;
 uint32_t b: 20;
 //uint32_t : 8;
 };
} a_t;
//#pragma pack(pop)


int main ( int argc, char* argv[] )
{
 ( void ) argc;
 ( void ) argv;


 a_t A;

 A.a = 1024;
 A.b = 1024;

 fprintf ( stderr, "%x,%x,%x\n", A.data, A.a, A.b );
 fprintf ( stderr, "sizeof=%ld\n", sizeof ( A ) );



 return 0;
}