How can I use a string from another function?

Question

In my program ( I will include code below ), I have a function to determine the user's name and height. I use the name function first void name() and then the function void height() following it (of course main is last).

What I'm trying to do is to display the user's name throughout the program. In my second function, void height() Is ask the user how tall they are:

cout << " How tall are you?" << endl;

I would like to ask " How tall are you, name1?" , but the string name1 is not declared in the scope. Any ideas of how to make it work / what I'm doing wrong? Thank you. Also if you see any other issues or something I can do to make things easier/alternative ways, please let me know! (I'm new!)

#include <iostream>
#include <string>

using namespace std;


void name()
{
    cout << "Welcome ________ ... uhmmmm, what was your name again?   ";
    string name1;
    cin >> name1;
    cout << " " << endl;
    cout << " Oh that's right! Your name was " << name1 << ", how could I forget that?!" << endl;

}

void height()
{
    //feet and inches to inches
    cout << " How tall are you?" << name1 << endl;
    cout << " " << endl;
    cout << " " << endl;
    cout << " Enter feet:    ";
    int feet;
    cin >> feet;
    cout << " " << endl;
    cout << " Enter inches:    ";
    int inches;
    cin >> inches;
    int inchesheight;

    inchesheight = (feet * 12) + inches;

    cout << " " << endl;
    cout << " Your height is equal to " << inchesheight << " inches total." << endl;


    if (inchesheight < 65 )
    {
        cout << " You are shorter than the average male." << endl;
    }
    else if (inchesheight > 66 && inchesheight < 72)
    {
        cout << " You are of average height." << endl;
    }
    else
    {
        cout << " You are taller than average." << endl;
    }
}




int main()
{
    name();
    height();
    return 0;
}

Answer 1

Return a string instead of void.

string name()
{
    cout << "Welcome ________ ... uhmmmm, what was your name again?   ";
    string name1;
    cin >> name1;
    cout << " " << endl;
    cout << " Oh that's right! Your name was " << name1 << ", how could I forget that?!" << endl;
    return name1;
}

Same thing with height(), for example, that should return an int. Also to get the name in your height function you could do.

int height(string name1)
{
    // cout stuff about name
    return userHeight;
}

Then you can call it like this:

int main()
{
    string userName = name();  // takes the return from name and assigns to userName
    int userHeight = height(userName);   // passes that string into height()
    return 0;
}

More examples of using functions and returning things:

int add(int a, int b)
{
    int total = a + b;   // the variable total only exists in here
    return total;
}

int add4Numbers(int w, int x, int y, int z)
{
    int firstTwo = add(w, x);  // I am caling the add function
    int secondTwo = add(y,z);  // Calling it again, with different inputs
    int allFour = add(firstTwo, secondTwo);   // Calling it with new inputs
    return allFour;
}   // As soon as I leave this function, firstTwo, secondTwo, and allFour no longer exist
    // but the answer allFour will be returned to whoever calls this function

int main()
{
    int userA = 1;
    int userB = 7;
    int userC = 3;
    int userD = 2;

    int answer = add4Numbers( userA, userB, userC, userD )  // this grabs the value from allFour from inside the add4Numbers function and assigns it to my new variable answer
    return answer;  // now equals 13
}