C Programming - Structures, Unions, Enums - Discussion
Discussion Forum : Structures, Unions, Enums - Find Output of Program (Q.No. 2)
2.
What will be the output of the program ?
#include<stdio.h>
int main()
{
union var
{
int a, b;
};
union var v;
v.a=10;
v.b=20;
printf("%d\n", v.a);
return 0;
}
Discussion:
83 comments Page 9 of 9.
S Saha said:
4 years ago
Overlapping.
By definition of a union: you can't simultaneously use v.a and v.b because both fields share the same address.
By definition of a union: you can't simultaneously use v.a and v.b because both fields share the same address.
(2)
Kalai said:
2 years ago
Union: a collection of different data items stored in a same memory location.
-> last store data is the first priority. So 20 is printed because all data is stored in the same memory location.
-> last store data is the first priority. So 20 is printed because all data is stored in the same memory location.
(8)
Ganesh Jagtap said:
1 year ago
Union : Holds multiple members with different data types, and all members share the same memory location.
So, in this case, latest stored data has the highest priority.
So, in this case, latest stored data has the highest priority.
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