Re: [boost] boost::final similar to boost::noncopyable

30 May 2007


      ----- Original Message -----
From: "Christopher Woods" <cwoods_eol@yahoo.com>
To: <boost@lists.boost.org>
Sent: Tuesday, May 29, 2007 7:49 PM
Subject: Re: [boost] boost::final similar to boost::noncopyable
...
The latter gets around's MSVC error re: no copy constructor or explicit
copy constructor.  It seems that MSVC compiler is implicitly defining an
explicit copy constructor so you have to declare one to get around it.
Hi Chris,

I was hopping also, but I must do something wrong, I copy paste your code in 
VC71, and VC8 and get the same error with no copy constructor ...following 
is the full code I used:
class final_base
{
protected:
	final_base();
};

class final : public virtual final_base
{
protected:
	final();
private:
	final(const final&);
};


class B : final
{
public:
	B() {}
};

/*class C : B
{
public:
	C() {} // Error - no derive from the B but msg is not obvious IMHO
};*/

int main()
{
	B t1;
	B t2(t1); // Okay - because of private copy constructor in final
}

Best Regards,
Costin Calisov