Initialization of class members

[misterowakka]

When generating a new instance of a class, do the constructors of all private members are called automatically? And what about the case I want to call a non default constructor?

class Something
{
private:
    YOYO yoyo; //default constructor called automatically?
    YOYO yoyo2(int num); //Possible? if not, what's the right way?
};

Thanks.

[laserlight]

When generating a new instance of a class, do the constructors of all private members are called automatically?

Generally, the default constructors of member variables are called.

And what about the case I want to call a non default constructor?

You would provide an initialisation list, e.g.,

class Something
{
public:
    Something() : yoyo(123) {}
private:
    YOYO yoyo;
};

[misterowakka]

Thank you

[Elysia]

Don't worry. The default constructors of all variables within your regardless of type and visibility is always called.