ex1.lst

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C51 COMPILER V8.08   EX1                                                                   09/04/2008 15:28:28 PAGE 1   


C51 COMPILER V8.08, COMPILATION OF MODULE EX1
OBJECT MODULE PLACED IN ex1.OBJ
COMPILER INVOKED BY: C:\Program Files\keil\C51\BIN\C51.EXE ex1.C BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include <stdio.h>                                                      //头文件
   2          
   3          void main()                                                             //主函数
   4          {
   5   1      int i=10;                                                                       //声明变量并初始化
   6   1      float f=3.7;
   7   1      char c='A';
   8   1      
   9   1      union ThreeInOne                                                        //声明联合
  10   1      {
  11   1      int a;
  12   1      char b;
  13   1      float c;
  14   1      };
  15   1      union ThreeInOne *un;                                           //声明联合变量指针
  16   1      un=&i;                                                                  //为联合变量指针赋值
*** WARNING C182 IN LINE 16 OF EX1.C: pointer to different objects
  17   1      printf("un->a=%d\n",un->a);                                     //输出
  18   1      un=&c;
*** WARNING C182 IN LINE 18 OF EX1.C: pointer to different objects
  19   1      printf("un->b=%c\n",un->b);
  20   1      un=&f;
*** WARNING C182 IN LINE 20 OF EX1.C: pointer to different objects
  21   1      printf("un->c=%f\n",un->c);
  22   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    117    ----
   CONSTANT SIZE    =     30    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----      10
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


C51 COMPILATION COMPLETE.  3 WARNING(S),  0 ERROR(S)