From: Steven Watanabe (steven_at_[hidden])
Date: 2007-03-03 21:40:43
AMDG
Manuel Fiorelli <manuel.fiorelli <at> gmail.com> writes:
> I know that standard C++ prohibits template parameters and typedefs in
> friend declarations, thus the only way to eliminate the problem seems to use
> an ad-hoc non_derivable helper for each class, but this should require a
> less clean approach:
Even though it is prohibited most compilers allow
it. You might want to look at
http://boost-consulting.com/vault/index.php?&direction=0&order=&directory=Generic%20Programming
> - Can someone say me what is the reason to use a nested
> namespace....what does it mean "unintended ADL"
namespace boost {
template<class T0>
void f(const T0&);
}
namespace my_namespace {
class A {};
class B : BOOST_NON_DERIVABLE, public A {};
void f(const A&);
void f() {
B b;
f(b); //calls boost::f
}
}
In Christ,
Steven Watanabe