call constructor from base class

[mwebel]

Hi ikind of remember this being easy but cant find it on google:
i have a base class and a derived class.
The base class has two constructors normal and int overloaded one.
thing is i want the derived class to call the constructors for the base
class using also the same kind of overloading. like this:

class BASE{
public:
BASE();
BASE(int x);
}

class DERIVED : BASE{
//normal constructor
DERIVED(){
//init BASE with normal constructor
};
//overloaded constructor
DERIVED(int){
//init BASE with overloaded constructor
};
}

int main(){

//this should call the overloaded constructor of BASE!!!
DERIVED dummy(3);
return 1;
}

it would be my death if the wrong base constructor would be called or
even called twice...
thanks for any help!

 

[mlimber]

Hi ikind of remember this being easy but cant find it on google:
i have a base class and a derived class.
The base class has two constructors normal and int overloaded one.
thing is i want the derived class to call the constructors for the base
class using also the same kind of overloading. like this:

Just put the proper base constructor call in your derived class'
initialization list. See below.

class BASE{

Don't use all caps for your names. Reserve that for macros only (and
use those only sparingly!).

public:
BASE();
BASE(int x);
}

class DERIVED : BASE{
//normal constructor
DERIVED()

: BASE() // Would be called by default anyway

{
//init BASE with normal constructor
};
//overloaded constructor
DERIVED(int i) : BASE( i )
{
//init BASE with overloaded constructor
};
}

int main(){

//this should call the overloaded constructor of BASE!!!
DERIVED dummy(3);

It will!!!

return 1;
}

it would be my death if the wrong base constructor would be called or
even called twice...
thanks for any help!

Cheers! --M