Returning two arrays from function

[Pauli]

So i wrote this code and been trying to figure out how to get two arrays from it to later use. So this is part of the code i'm working on

vector<float> calcProducts()
{
    cout << "How many products ? ";
    int nProducts;
    //Takes imput from user and makes array based on it
    cin >> nProducts;
    //These are for loop 
    vector<float> nItemsCount(nProducts);
    vector<float> nPrice(nProducts);
    int x = 1;
        for (int i = 0; i < nItemsCount.size(); i++ & x++)
        {
        cout <<"How many items of type "<< x << "? ";
        cin >> nItemsCount[i];
        cout <<"Price of item ? ";
        cin >> nPrice[i];
        nPrice[i] = nItemsCount[i] * nPrice[i];
        }
        return nPrice, nItemsCount;
}
//I Have main() in diffrent file main.cpp
int main()
{
   vector<float> getValue;
   getValue=calcProducts();
}

So i need to return both nPrice and nItemsCount from calcProducts() function for further calculations.
I have tried almost everything but just can't find it anywhere.
This is part of my firs CPP program.
Would appreciate if someone help me with this.

[TwilightSpectre]

There is no direct way to return 'two values' from a function as you are trying here. There are, however, ways to do so. The two most common are to return a structure of two variables, and the other is to pass at least one array by reference. For example:

vector<float> calcProducts(vector<float>& nItemsCount) {
    // ...

    // vector<float> nItemsCount(nProducts); - already declared, instead:
    nItemsCount.resize(nProducts);
    vector<float> nPrice (nProducts);

    // ...

    return nPrice; // you don't need to return the item count - it is already modified
}

int main() {
    vector<float> itemCount;
    vector<float> prices = calcProducts(itemCount);

    // now both 'itemCount' and 'prices' are set
    
    return 0;
}

Another option would be std::pair:

pair<vector<float>, vector<float>> calcProducts() {
    // ...

    return {nPrice, nItemsCount};
    // OR
    return make_pair(nPrice, nItemsCount);
}

int main() {
    auto ret = calcProducts();
    vector<float> prices = ret.first;
    vector<float> itemCount = ret.second;
}

Generally, I'd prefer the first one, but sometimes the second one might make more sense.

[Pauli]

Thanks that does it.. Works just perfectly. Its funny that i used like 6 hours to solve easy task like that.