The operation of a union : Union « Data Type « C / ANSI-C






  1. C / ANSI-C
  2. Data Type
  3. Union

The operation of a union


#include <stdio.h>

void main()
{
  union u_example   
  {
    float decval;
    int pnum;
    double my_value;
  } U1;

  U1.my_value = 125.5;
  U1.pnum = 10;
  U1.decval = 1000.5f;
  printf("\ndecval = %f   pnum = %d   my_value = %lf", 
                        U1.decval, U1.pnum, U1.my_value );
      
  printf("\nU1 size = %d\ndecval size = %d   pnum size = %d   my_value size = %d",
                 sizeof U1, sizeof U1.decval, sizeof U1.pnum, sizeof U1.my_value);
}








Related examples in the same category

1.Simple union