variables in sperate functions

I'm still a noob in C++ and I was hoping someone could help me with this. My problem is that I would like a function to read a variable made in a previous function.
my code:

Code:

#include <iostream>

using namespace std;

int secondary();    //prototypes
int primary2();

int main()
{
    int x, y, input;              //i would like "y" to be passed to primary2()

    cout<<"input the Primary skill you would like \n";

    cout<<"1. flying \n";
    cout<<"2. laser \n";
    cout<<"3. super strength \n";
    cout<<"4. element controller \n";
    cout<<"5. dominator \n\n";

    cin>>y;

    switch (y){
        case 1:
        cout<<"\nyou chose flying\n\n";
        break;

        case 2:
        cout<<"\nyou chose laser\n\n";
        break;

        case 3:
        cout<<"\nyou chose super strength\n\n";
        break;

        case 4:
        cout<<"\nyou chose element controller\n\n";
        break;

        case 5:
        cout<<"\nyou chose dominator\n\n";
        break;

        default:
        cout<<"\nerror\n\n";
        main();
        break;
}

    cout<< "choose \n";
    cout<<"1. another primary \n";
    cout<<"2. two secondary\n\n";

    cin>>input;


    switch (input){
        case 1:
        primary2();
        break;

        case 2:
        secondary();
        break;

        default:
        main();
        break;
}

}

int primary2(int &y)
{
    int z;

    cout<<"choose another primary\n\n";

    cin>>z;

    switch (z){              //all the couts are fillers to check for it working
        case 1:
        cout<<"\ni cant believe this worked\n\n";
        break;

        case 2:
        cout<<"\nhoothoot\n\n";
        break;

        case 3:
        cout<<"\num HI\n\n";
        break;

        case 4:
        cout<<"\nyour still here\n\n";
        break;

        case 5:
        cout<<"\ni have nothing to say to u\n\n";
        break;

        default:
        cout<<"\nerror\n\n";
        void primary2(int &y);
        break;
}

    if (y == z){                   //this is where i need the y to be read

        cout<<"\nerror\n\n";

        primary2();
}

}

    int secondary()
{

}

I need help with this

Originally Posted by sounz

I'm sorry for how sloppy it is if you would like I can fix it up some more

Please do, especially by indenting the code more properly and consistently.

As for your question: do you know how to pass by reference?

You also might want to use a loop instead of recursion.

i don't know how to pass at all.

change primary2 signature

Code:

void primary2(int &y)

this means that it accepts a reference to an integer , any changes you make to this integer will change the integer you passed..

Learn C++ - » 7.3 — Passing arguments by reference

I got it to run but the problem is, its not running primary2 when i call it. I'll edit my script uptop so you can see what i changed.

whenever you use primary 2, make sure you include the new parameter

Functions (I)

the problem is greater now that i checked it out the switch (input) doesnt run any of the functions

"void primary2()" doesn't call a function, it merely declares that such a function exists. If you want to call it, ditch "void".

I'm still having problems I tried doing what you said and now its telling me undefined reference to 'primary2()' i changed the code block up top again to show what i've changed