[cfe-dev] C++ typedef merging
James Widman
widman at gimpel.com
Sun Dec 2 16:20:23 PST 2007
On Dec 2, 2007, at 6:57 PM, James Widman wrote:
> Note that this rule allows just enough hiding to maintain
> compatibility with this kind of C code while rendering the following
> examples ill-formed:
>
> struct A {};
> namespace A{} // Error
>
> int B;
> namespace B{} // Error
>
> int C();
> template <class T> struct C{}; // Error
>
> template< class T> int D();
> struct D{}; // Error
Also note, the kind of a name introduced by a using-declaration is the
same as the kind of name to which it refers; e.g. a using-declaration
that names a class introduces a class-name into the scope where the
using-declaration appears. Example:
namespace N {
int A;
template <class T> struct B;
}
struct A;
using N::A; // Ok
int B();
using N::B; // Error
James Widman
--
Gimpel Software
http://gimpel.com
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