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// { dg-do compile }
namespace boost_no_member_template_friends{
template <class T>
class foobar;
template <class T>
class foo
{
private:
template<typename Y> friend class foobar;
template<typename Y> friend class foo;
template<typename Y> friend bool must_be_friend_proc(const foo<Y>& f);
int i;
public:
foo(){ i = 0; }
template <class U>
foo(const foo<U>& f){ i = f.i; }
};
template <class T>
class foo;
template <class T>
bool must_be_friend_proc(const foo<T>& f);
template <class T>
bool must_be_friend_proc(const foo<T>& f)
{ return f.i != 0; }
template <class T>
class foobar
{
int i;
public:
template <class U>
foobar(const foo<U>& f)
{ i = f.i; }
};
int test()
{
foo<int> fi;
foo<double> fd(fi);
(void) &fd; // avoid "unused variable" warning
foobar<long> fb(fi);
(void) &fb; // avoid "unused variable" warning
return 0;
}
}
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