On Dec 21, 3:11 am, Sarath <CSar...@gmail.com> wrote:

On Dec 21, 4:49 pm, Ian Collins <ian-n...@hotmail.com> wrote:

Sarath wrote:

I've to write a single instance class. there are different methods to
control the single instance of a program. I've tried the following
method

class CSingleton
{
public:
CSingleton& GetInstance(){ static CSingleton s; return s; }

How can you call this method and how would you change its definition if
you did want to call it?

private:
CSingleton(){}
~CSingleton(){}
}

It wouldn't compile with any compiler without the missing semicolon.

The above code failed to compile in Visual C++ 6.0

Never trust that compiler, it's old and not very standards compliant.

--
Ian Collins.

Dear All,
I'm extremely sorry to paste wrong code. Please refer this one.

class CSingle
{
public:
static CSingle& GetInstance(){ static CSingle s; return s; }

private:
CSingle() { cout<<"ctor"; }
~CSingle() { cout<<"dtor"; }

};

Sorry for the incovenience.Please refer this code for my question

Regards,
Sarath

declare your destructor public. No reason to hide it.
So what about the compiler generated copy constructor?

int main()
{
CSingle instance;
CSingle copy(instance);

}

and assignment? etc...

On Dec 21, 3:11 am, Sarath <CSar...@gmail.com> wrote:

I'm extremely sorry to paste wrong code. Please refer this one.
class CSingle
{
public:
static CSingle& GetInstance(){ static CSingle s; return s; }
private:
CSingle() { cout<<"ctor"; }
~CSingle() { cout<<"dtor"; }
};
Sorry for the incovenience.Please refer this code for my question

declare your destructor public. No reason to hide it.

So what about the compiler generated copy constructor?

int main()
{
CSingle instance;
CSingle copy(instance);
}
and assignment? etc...