Operations on Struct Variable

January 18, 2023

Struct Variable

Operations on struct variable can be used only by assignment operation. Any other operations are not allowed on struct variables.

Syntax of Struct Variable

struct employee {
  // code
};

int main() {
  struct employee employee1, employee2, e[10];
  return 0;
}

Here we’ll discuss two problems where problem 1 runs easily without any compilation error and gives output while problem 2 doesn’t run and gives compilation error.

Problem 1

Run

#include<stdio.h>
struct Employee {
int x;
int y;
};

int main()
{
struct Employee e1 = {20000, 30000};
struct Employee e2 = e1; 
printf(" e2.x = %d, e2.y = %d", e2.x, e2.y);
getchar();
return 0;
}

output

e2.x = 20000, e2.y = 30000

Problem 2

Run

#include<stdio.h>
struct Employee
{
  int x;
  int y;
};

int main ()
{
  struct Employee e1 = { 10, 20 };
  struct Employee e2 = e1;
  if (e1 == e2)
    {
      printf ("e1 and e2 are same ");
    }
  getchar ();
  return 0;
}

Note:

We'll not get any output from the above program
Because of invalid operands to binary == (have 'struct Employee' and 'struct Employee')

Enums in C

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Structure pointer in C

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