#include <memory>
class A {};
void Fun(const std::auto_ptr<A>&) {}
Fun(std::auto_ptr<A>(new A));

Thanks!

Andrei
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Andrei Alexandrescu wrote:

> #include <memory>
> class A {};
> void Fun(const std::auto_ptr<A>&) {}
> Fun(std::auto_ptr<A>(new A));


No, it's not legal. The argument passed to Fun
is not an lvalue. There is no conversion function
to turn it into one, so we fail 8.5.3/5/1/2, and
there is no copy constructor to make a temporary,
so we fail 8.5.3/5/2/2.

On-line Comeau diagnoses this.

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