4.4.                                  _____ _________113

     :

   !
'   

,           &s,
     ch_stack,   main ().   
,       ch_stack.

4.4. 

 (union)    ,    ,   
,   ,    union  struct. 
   ,    .  
        
   .      -
,      .  
:

  union, 

union int_dbl {

int i ;

double x;

} n = {0};      // i  

      ,     
.

n.i =7;        //    7
cout  n.i  " .";

cout  n.x  "   -   .";

. = 7.0;     //   
//   7.0

   ,       
-.        
   .     
 ,        ,   .
   ,    :

  weekend, 

enum week { sun, mon, tues, weds, thurs, fri, sat };

// 
union {

int i;

week w;

};

i = 5;