C Program to Create Your Own Header File in C Programming

Make Your Own Header File ?

Step1 : Type this Code

int add(int a,int b)
{
return(a+b);
}

int add(int a,int b)

{

return(a+b);

}

In this Code write only function definition as you write in General C Program

Step 2 : Save Code

Save Above Code with [.h ] Extension .
Let name of our header file be myhead [ myhead.h ]
Compile Code if required.

Step 3 : Write Main Program

#include<stdio.h>
#include"myhead.h"
void main() {
   int num1 = 10, num2 = 10, num3;
   num3 = add(num1, num2);
   printf("Addition of Two numbers : %d", num3);
}

#include<stdio.h>

#include"myhead.h"

void main() {

int num1 = 10, num2 = 10, num3;

num3 = add(num1, num2);

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

}

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

Note

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

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C Program to Create Your Own Header File in C Programming