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Make Your Own Header File in C & C++? 

Make Your Own Header File ?

Step1 : Type this Code 

int Multiplication(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 [Multhead.h ]
Compile Code if required.

Step 3 : Write Main Program

#include<stdio.h>
#include"Multhead.h"
void main()
{
int number1=10,number2=10,number3;
number3 = Multiplication(number1,number2);
printf("Addition of Two numbers : %d",number3);
}

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

Note

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


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