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05.23.2006 at 01:27AM PDT, ID: 21860246
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6.2

Copy constructor or parameterized constructor

Asked by dennis_george in C++ Programming Language

Tags: ,

Hi all,

I am getting a strange compilaton error.... I am working on g++ 3.4.2..... Following is the scenario.....

I have two independent classes(A and B) and a global function which returns reference to an instance of class A.

class A{
public:
      A()
      {
                cout << "A constructor" << endl;
      }      
};

// Method returns reference to A
A& GetData()
{
      static A obj;
      return obj;
}


class B{
public:
      B()
      {
                cout << "B constructor" << endl;
      }      

     // Parameterized constructor taking reference to object A
      B(const A& refObj)
      {
                cout << "B param constructor" << endl;
      }      
private:
    // Private copy constructor
     B(const B& ref)
      {
                cout << "B copy constructor" << endl;
      }      
};

Now if I create an object(as shown below) of B I am getting an error....

B obj = GetData(); // It should result in call to the parameterized constructor....
// But it gives me an error saying B's copy constructor is private....

So is it a vaild behaviour or is it some sort of bug in gcc?  
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Keywords: Copy constructor or parameterized co…
Title
1 constructors
2 Constructor
3 Constructor
4 Copy constructor
5 Conversion Constructor
6 Address of a constructor
 
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About this solution

Zone: C++ Programming Language
Tags: constructor, parameterized
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Solution Provided By: xf10036
Participating Experts: 4
Solution Grade: A
 
 
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