exp09_05.c

《C语言程序设计教程、实验与练习》 源文件下载

#include <stdio.h>

struct Mystruct
{
 unsigned int  a:11;
 unsigned int  b:3;
 unsigned int  c:2;
 };
typedef  struct Mystruct MYSTRUCT;

union  MyUnion
{
 int  m;
 MYSTRUCT n;
 };
typedef union MyUnion MYUNION;

void main()
{
 MYUNION  x={0xFFFF};

 printf("x.n.a=%u\n",x.n.a);
 printf("x.n.b=%u\n",x.n.b);
 printf("x.n.c=%u\n",x.n.c);
 x.n.a=0;
 printf("x.m=%X\n",x.m);
 }