Status: Solved
Priority: Medium
Security: Public
Views: 181
Last Modified: 2012-05-06

Calling a constructor

Hi,

Is there a way I can call a parent constructor of a class without using the : notation:

myClass::myClass():parentClass(stuffhere){
}

Can I do anything similar inside the method body rather than the above?

Thanks,
Uni

Unimatrix_001

Asked: 2009-04-08

Advertise Here

1 Solution

LVL 53

Infinity08Commented: 2009-04-08

No. If you need to pass arguments to the base class constructor, you have to call it in the derived class's initialization list (like you showed).

You can call other base class methods by explicitly mentioning the base class namespace, eg. :

MyClass::fun(int a) {
ParentClass::fun(a);
}

But constructors are a special case, since they're used for constructing objects ... ie. the base class has to be constructed before constructing the derived class.

LVL 3

Unimatrix_001Author Commented: 2009-04-08

Ok, thank you. :)

LVL 53

Infinity08Commented: 2009-04-08

Is there any specific reason you wanted to call it in the body of the constructor ? Maybe there's another way to do things ?

LVL 3

Unimatrix_001Author Commented: 2009-04-08

Nah, just out of preference really - I like all code within the body... Nothing more than a preference really. :)

LVL 53

Infinity08Commented: 2009-04-08

In that case, you should know, that using the initializer list is recommended, since it allows the compiler to optimize the code more than if you'd do it in the body.