Template instatiation bug.

[Alexandre Oliva]

Roy Dragseth writes:

> Hi, I just discovered what I beleive is a bug in egcs-971023. 

It is not a bug, this is correct behavior.

First, you must declare operator>> as a template:

template <class T> class C_matrix;
template <class T> istream& operator>>(istream &s, C_matrix<T> &A);

> template<class T>
> class C_matrix
> {

Now you can declare operator>> as a friend, but you must tell the
compiler it is a template function using angle brackets:

>   friend istream& operator>> <> (istream &s, C_matrix &A);
                               ^^ note the template notation here

> };

Now, your program should work.

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