Inputing variables from main file into function file

[daytrading]

I'm trying to get a problem to work. I simplified it to the sum of 2 numbers so that maybe it'd be easy to figure out. I want to create a class, functions, but I want to input the variables in main and then use them in those functions. I made this a 2 variable summation for simplification.

sum.h

#include <string>
using namespace std;

class SummingVariables
{
public:
	int get_sum(int, int);
};

sum.cpp

#include <iostream>
#include <iomanip>
#include <cstdlib>
using namespace std;

#include "sum.h"


int SummingVariables::get_sum(int a, int b)
{   
	int sum = a+b;
	return sum;
	cout << sum;
}

main.cpp

#include <iostream>
#include <iomanip>
using namespace std;

#include "sum.h"

int main()
{
int a;
int b;

cout << "Enter a" << endl;
cin >> a;
cout<< "Enter b" << endl;
cin>> b;

SummingVariables get_sum();

}

Thank you.

[48T7M4Gy]

You have to create a SummingVariables object. Add these two lines to main():

SummingVariables sv;
	cout << "Answer is: " << sv.get_sum(a,b);

[48T7M4Gy]

Also, line 13 in sum.cpp comes after the return statement so it will never display the sum. :)

[daytrading]

Thanks, it works, but I can't get it to pause after I return the sum.

[48T7M4Gy]

system("pause") is one way, the purists will jump on you, but tell them it's just for demo purposes. ;)

Another way is open up cmd.exe in your project (debug) directory and run your .exe file from there.

[48T7M4Gy]

http://www.cplusplus.com/forum/beginner/1988/

[daytrading]

Thanks!