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Calling a constructor

Posted on 2009-04-08
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Last Modified: 2012-05-06
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
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Question by:Unimatrix_001
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7 Comments
 
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Infinity08 earned 2000 total points
ID: 24104456
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.
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Author Closing Comment

by:Unimatrix_001
ID: 31568381
Ok, thank you. :)
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Expert Comment

by:Infinity08
ID: 24104609
Is there any specific reason you wanted to call it in the body of the constructor ? Maybe there's another way to do things ?
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LVL 3

Author Comment

by:Unimatrix_001
ID: 24104640
Nah, just out of preference really - I like all code within the body... Nothing more than a preference really. :)
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Expert Comment

by:Infinity08
ID: 24104650
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.
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Author Comment

by:Unimatrix_001
ID: 24104667
I shall do that then...
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Expert Comment

by:Infinity08
ID: 24104671
;)
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