How to add element to various container depending of type using template

Question

I\'ve got rather silly question but I hope that you can help me with that.

I\'ve got class with multiple vectors, and this vectors have different storage types.

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Answer 1

You might use "generic getter" for your vector:

class A
{
public:

    template 
    std::vector>& getVector() {
        auto vectors = std::tie(V1, V2);
        return std::get>&>(vectors);
    }

    template 
    void addElement(T Obj) {
        getVector().emplace_back(Obj.Name, Obj);
    }

    std::vector> V1;
    std::vector> V2;
};

Changing your member might make sense to have std::tuple directly. and you might want to templatize the whole class:

template 
class A_Impl
{
private:
    template 
    decltype(auto) getVector() const {
        return std::get>>(Vs);
    }
    template 
    decltype(auto) getVector() {
        return std::get>>(Vs);
    }
public:

    template 
    void addElement(T Obj) {
        getVector().emplace_back(Obj.Name, Obj);
    }
private:
    std::tuple>...> Vs;
};

using A = A_Impl;