c++ template class problem

[Alexandre Oliva]

Nathan Myers <ncm@cygnus.com> writes:

> Toshinao ISHII wrote:

>>        friend ostream& operator << <>( ostream &, const C<T>& );

> And the friend:

>         template <class U>
>           friend ostream& operator<<( ostream&, const C<U>& );

I'm pretty sure you're well aware that these are not equivalent.

The former declaration refers to a single specialization, whereas the
latter refers to *all* specializations of the template function.

-- 
Alexandre Oliva
mailto:oliva@dcc.unicamp.br mailto:aoliva@acm.org
http://www.dcc.unicamp.br/~oliva
Universidade Estadual de Campinas, SP, Brasil