You need to use initialization list to initialize constant members,references and base class When you need to initialize constant member, references and pass parameters to base class constructors, as mentioned in comments, you need to use initialization list. struct aa { int i; const int ci; // constant member aa() : i(0) {} // will … Read more
This is a member initializer list, and is part of the constructor’s implementation. The constructor’s signature is: MyClass(); This means that the constructor can be called with no parameters. This makes it a default constructor, i.e., one which will be called by default when you write MyClass someObject;. The part : m_classID(-1), m_userdata(0) is called … Read more
You can use a decorator: from functools import wraps import inspect def initializer(func): “”” Automatically assigns the parameters. >>> class process: … @initializer … def __init__(self, cmd, reachable=False, user=”root”): … pass >>> p = process(‘halt’, True) >>> p.cmd, p.reachable, p.user (‘halt’, True, ‘root’) “”” names, varargs, keywords, defaults = inspect.getargspec(func) @wraps(func) def wrapper(self, *args, **kargs): … Read more
It is not possible in the way you describe. You’ll have to add a constructor (could be protected) to the base class to forward it along. Something like: class Parent { protected: Parent( const std::string& something ) : something( something ) {} std::string something; } class Child : public Parent { private: Child() : Parent(“Hello, … Read more