Makefile in C++ and Its Applications

In this tutorial, we will be discussing a program to understand MakeFile in C++ and its applications.

The task is to break the entire program with MakeFile. It is usually done by making .cpp files and .h files with all the classes/functionalities and link them together.

Example

main.cpp

#include <bits/stdc++.h>
#include "function.h"
using namespace std;
//main execution program
int main(){
   int num1 = 1;
   int num2 = 2;
   cout << multiply(num1, num2) << endl;
   int num3 = 5;
   cout << factorial(num3) << endl;
   print();
}

print.cpp

#include <bits/stdc++.h>
#include "function.h"
using namespace std;
void print()
{
   cout < "makefile" << endl;
}

factorial.cpp

#include <bits/stdc++.h>
#include "function.h"
using namespace std;
//factorial program
int factorial(int n){
   if (n == 1)
      return 1;
   return n * factorial(n - 1);
}

multiply.cpp

#include <bits/stdc++.h>
#include "function.h"
using namespace std;
int multiply(int a, int b){
   return a * b;
}

functions.h

#ifndef FUNCTIONS_H
#define FUNCTIONS_H
void print();
int factorial(int);
int multiply(int, int);
#endif

Output

2
120
makefile