using std::initializer_list as a member variable [duplicate]

Answer 1

Copying a std::initializer_list does not copy its underlying objects. It's not meant to be used as a container. What you should be doing instead is storing it in something else, like a std::vector:

class A
{
public:
    A(std::initializer_list il) :
        m_il(il)
    {}

    std::vector m_il;
};