String of a C programs

12. Program

#include 

#include 

#include 

union Data

{

   int i;

   float f;

   char  str[20];

};

int main( )

{

 Clrscr();

   union Data data;        

   printf( "Memory size occupied by data : %d\n", sizeof(data));

   return 0;

   getch();

}

Output

          Memory size occupied by data: 20

13. Program

#include 

#include 

#include 

union Data

{

   int i;

   float f;

   char  str[20];

};

int main( )

{

   union Data data;        

   data.i = 10;

   data.f = 220.5;

   strcpy( data.str, "C Programming");

   printf( "data.i : %d\n", data.i);

   printf( "data.f : %f\n", data.f);

   printf( "data.str : %s\n", data.str);

   return 0;

getch();

}

Output

data.i : 1917853763

data.f : 4122360580327794860452759994368.000000

data.str : C Programming

14. Program

#include 

#include 

#include 

union Data

{

   int i;

   float f;

   char  str[20];

};

int main( )

{

 clrscr();

   union Data data;        

   data.i = 10;

   printf( "data.i : %d\n", data.i);

   data.f = 220.5;

   printf( "data.f : %f\n", data.f);

   strcpy( data.str, "C Programming");

   printf( "data.str : %s\n", data.str);

   return 0;

   getch();

}

Output

data.i : 10

data.f : 220.500000

data.str : C Programming

15. Program

#include 

#include 

#include 

struct

{

  unsigned int widthValidated;

  unsigned int heightValidated;

} status1;

struct

{

  unsigned int widthValidated : 1;

  unsigned int heightValidated : 1;

} status2;

int main( )

            {

            clrscr();

            printf( "Memory size occupied by status1 : %d\n", sizeof(status1)); 

            printf( "Memory size occupied by status2 : %d\n", sizeof(status2));

   return 0;

getch();

}

Output

Memory size occupied by status1 : 8

Memory size occupied by status2 : 4

16. Program

#include 

#include 

#include 

struct

{

  unsigned int age : 3;

} Age;

int main( )

{

   Age.age = 4;

   printf( "Sizeof( Age ) : %d\n", sizeof(Age) );

   printf( "Age.age : %d\n", Age.age );

   Age.age = 7;

   printf( "Age.age : %d\n", Age.age );

   Age.age = 8;

   printf( "Age.age : %d\n", Age.age );

   return 0;

   getch();

}

Output

        Sizeof( Age ) : 4

            Age.age : 4

            Age.age : 7

            Age.age : 0