[boost] Re: move_ptr

From: Howard Hinnant (hinnant_at_[hidden])
Date: 2004-01-23 10:06:54

On Jan 22, 2004, at 11:09 PM, Jonathan Turkanis wrote:

> Here are some test cases. The ones marked error are cases I believe
> should not compile.
>
>     struct Base { virtual ~Base() { } };
>     struct Derived : Base { };
>
>     inline void const_sink(const move_ptr<Base> p)
>     {
>         /*[1]*/ move_ptr<Base> p2 = p;   // ???
>     }
>
> VC7.1, GCC 3.2 and como 4.3.3 reject 1, while Codewarrior accepts it.
> I think it should fail to compile. Correct? It seems to be the only
> case where the cant_move_from_const makes any difference.

I agree that [1] should not compile.  You don't want to move from an 
lvalue with copy syntax, especially a const lvalue.

-Howard