Include saber.hpp in C++

A file named saber.hpp:-

#ifndef my_header
#define my_header
#include <iostream>
using namespace std;
int a=0;
saber_prints(string x=""){
    cout<<x;
}
saber_printi(int x=0){
    cout<<x;
}
saber_endline(){
    cout<<endl;
}
class saber_int
{
    public:
    int value;
};
#endif



A cpp file:-

#include "saber.hpp"
int main()
{
    saber_prints("Hello\nEnter the first number : ");
    saber_int num1;
    saber_int num2;
    cin>>num1.value;
    saber_prints("Enter the second number : ");
    cin>>num2.value;
    saber_endline();
    saber_prints("The sum = ");
    saber_printi(num1.value+num2.value);
}