Avoid calling constructor of member variable

Question

I have the following C++-class:

// Header-File
class A
{
    public:
    A();

    private:
    B m_B;
    C m_C;
};

// cpp-File
A::A()
: m_B(1)
{
    m_B.doSom         


        

Answer 1

The pointer sounds like the only clean solution to me. The only other solution I see is to have a default constructor for C that does nothing and have an initialising method in C you call yourself later.

m_C.Initialise( m_B.getSomeValue() );