Change/return more than value from function | C Language

Q : Write down three different methods used for referencing multiple values from a function.

Answer : you can return only one value from function using return statement but you can change multiple values from a function using a pointer, array, and structure. The following program will show you a demo. 

#include<stdio.h>

#include<conio.h>

#include "mylib.h"

/*============================

     Girfa Student Help

     Multiple value set from function

==============================*/

struct data

{

     int roll;

     int marks;

};

Create your own header file | C language

create  a blank file and  add following code

int sum(int a, int b)

{

     return(a + b);

}

save this file named with myheader.h

create  a new file and call your function  as given below

#include<stdio.h>

#include<conio.h>

#include "mylib.h"

/*============================

     Girfa Student Help

     Substring wihout using library function

==============================*/

void main()

{

  clrscr();

  printf("\n\t%d",sum(1,2));

  getch();

}

Next Topic

Substring program without library function | C Language

Q : Write a ‘C’ Program to find substring of string without using Library Function.

Answer :

#include<stdio.h>

#include<conio.h>

#define MAX 50

/*============================

     Girfa Student Help

     Substring wihout using library function

==============================*/

Sum of lower triangular program | C language

Q : Write a ‘C’ Program to find Sum of lower triangular elements in a matrix.

Answer : 

Lower triangular

Lower triangular matrix is a special square matrix whole all elements above the main diagonal is zero.