C Program to Calculate Size of Structure using Sizeof Operator

Program : Calculate Size of Structure in C Programming

#include<stdio.h>
struct stud {
   int roll;
   char name[10];
   int marks;
};
int main() {
   int size;
   struct stud s;
   size = sizeof(s);
   printf("nSize of Structure : %d", size);
   return(0);
}

#include<stdio.h>

struct stud {

int roll;

char name[10];

int marks;

};

int main() {

int size;

struct stud s;

size = sizeof(s);

printf("nSize of Structure : %d", size);

return(0);

}

Explanation :

Structure is Collection of elements of the Different data Types.
Size of the Structure Can be Evaluated using “sizeof Operator”

size = sizeof(s);

1	size = sizeof(s);

Formula for Calculating Size of Structure :

Size of Structure 'S' = sizeof(roll) + sizeof(name) + sizeof(mark)
                      = 2 + 10 + 2
                      = 14

Size of Structure 'S' = sizeof(roll) + sizeof(name) + sizeof(mark)

= 2 + 10 + 2

= 14

Remember :

Sizeof is Operator not function
Sizeof Operator Takes any Variable as Parameter.

Table of Content

C Program to Calculate Size of Structure using Sizeof Operator

Explanation :

Formula for Calculating Size of Structure :