Make Your Own Header File ?

Step1 : Type this Code 

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 number1=10,number2=10,number3;
number3 = add(number1,number2);
printf("Addition of Two numbers : %d",number3);
}

1. Include Our New Header File .
2. Instead of writing < myhead.h> use this terminology "myhead.h"
3. All the Functions defined in the myhead.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 [ myhead.h and sample.c ] should be in same folder.

---

Tags / Keywords : | C Preprocessor, Header File

---