Question

NetworkManager::NetworkManager():m_Thread(0), m_Continue(true), m_Init(false){
}

The first one is a name space and the second one is the name of the function. and what are those three parameters?. I think it might be related to the inheritance but those are not the class name. Those are the private variables.

Thanks in advance.

Answer 1

That’s the definition of a constructor – there are no namespaces.

NetworkManager :: NetworkManager() : m_Thread(0), m_Continue(true), m_Init(false){
}

The constructor is for a class called NetworkManager, and it is initialising its members using an initialisation list. What’s going on is conceptually (if not completely accurately):

 NetworkManager :: NetworkManager() {
      create "empty" NetWorkManager object
      initialise its m_Thread with zero
      set its m_Continue to be true
      set its m_Init to be false
 }

You then use the constructor to create a fully-initialised object:

NetworkManager manager;

Initialisation like this is preferred over assignment in the constructor’s body for several reasons:

• many types do not support assignment
• it is typically more efficient
• it removes the possibility of uninitialised objects in the remainder of the constructor code