Write a program that defines a type for a structure that stores information on a student in ENG EK 125. Declare two variables to be this structure type, and call a function to initialize both of the structure variables, using call-by-reference.

Following are the program in the C Programming Language.

#include / /header file

#include / /header file

struct student//creating structure

{

//set integer variables

int marks;

int roll;

};

//define function

void initial (struct student * stu)

{

//set integer type variables

int marks=420;

int roll_no=45, i;

stu->marks=marks; //assigning the values

stu->roll=roll_no; //assigning the values

}

//define main method to call the function

int main ()

{

struct student stu;

initial (&stu); //calling the function

printf ("Total marks : %d/n", stu. marks); / /print output

printf ("Roll No. : %d/n", stu. roll); / /print output

return 0;

}

Output:

Total marks : 420

Roll No. : 45

Explanation:

Here, we define the structure "student" with a struct keyword for creating a structure.

inside the structure, we set two integer type variable "marks", "roll".

Then, we define a function "initial () " and pass an argument in the parameter of the function.

inside the function, we set two integer type variable "marks", "roll_no" and assign the value in the variable "marks" to 420 and variable "roll_no" to 45. Assign the value in the structure's integer variables from the function's variable.

Finally, we set the main method inside it we call the function "initial () " and pass the value and then, we print the output with message.