ch23-18.c

C语言程序设计上机指导与练习 冶金工业出版社 刘怀亮

#include "stdio.h"
void partition(unsigned long num) 
{ 
   union a 
   { 
      unsigned int part[2]; 
      unsigned long w; 
   } n,*p; 
   p=&n;n.w=num; 
   printf("long integer=%lx\n",num); 
   printf("\nlong integer=%0x ",p->part[0]); 
   printf("\nhigh-part number=%0x\n", p->part[1]); 
} 

void main() 
{ 
   unsigned long x; 
   printf("Input a long number:"); 
   scanf("%lx",&x); 
   partition(x); 
}