C Program to Create Your Own Header File in C Programming

C Program to Create Your Own Header File in C Programming

Step 1: Make a user defined function.

   

   int add(int x,int y)

    {return (x+y);}

• write only function definition

Step 2: Save code

  

•    save the above code with extension .h.

           (for example myheader.h)

• compile if required

Step 3: write main program

  

#include<stdio.h>

#include"myheader.h"

void main() {

   int num1 = 10, num2 = 10, num3;

   num3 = add(num1, num2);

   printf("Addition of Two numbers : %d", num3);

}

1. Include Our New Header File .
2. Instead of writing < myheader.h> use this terminology “myheader.h”
3. All the Functions defined in the myheader.h header file are now ready for use .
4. Directly  call function add(); [ Provide proper parameter and take care of return type ]

Note

1. While running your program precaution to be taken : Both files [ myheader.h and example.c ] should be in same folder.