/* program to try to add one to a function parameter - illustrate pass by value */
#include <iostream>
using namespace std;

void trytoadd1(int);            //function prototype

int main()
{
    int k = 5;

    cout << "in main - before call: "<< k << endl;
    trytoadd1(k);
    cout << "in main - after call: "<< k << endl;

//  system("pause");
    return 0;
}

/* function that tries to add one to its parameter */
void trytoadd1(int x)           //x is receiving the value of k
{
    cout << "in function - before adding: " << x << endl;
    x++;
    cout << "in function - after adding: " << x << endl;
    return;
}