Make Your Own Header File ?

Step1 : Type this Code 

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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

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#include #include"myhead.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 < 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.