Daniel Frey <daniel.frey@[...].de>  wrote:
>  template <typename U>
>  void f (const B<U>&)
>  {
>     U<double> v;
>     v.g();
>  }

There's an error:

C:\DATA\USERS\bronislaw\My Documents\msys\T248.cpp(15) : error C2143:
syntax error : missing ';' before '<'
        C:\DATA\USERS\bronislaw\My Documents\msys\T248.cpp(22) : see
reference to function template instantiation 'void f<V> (const B<T> &)'
being compiled
        with
        [
            T=V
        ]
C:\DATA\USERS\bronislaw\My Documents\msys\T248.cpp(15) : error C2143:
syntax error : missing ';' before '<'
C:\DATA\USERS\bronislaw\My Documents\msys\T248.cpp(16) : error C2065:
'v' : undeclared identifier
C:\DATA\USERS\bronislaw\My Documents\msys\T248.cpp(16) : error C2228:
left of '.g' must have class/struct/union type
        type is ''unknown-type''


I think that instead should be:

template <template <typename>  class U>
void f (const B<U> &)
{
  U<double>  v;
  v.g();
}

after this small change it compiles fine, and result is:
double

Regards


B.

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