Michael Stevens ha escrito:
On Tuesday 27 July 2004 00:42, JOAQUIN LOPEZ MU?Z <joaquin@tid.es> wrote:
error C2888: 'void boost::multi_index::safe_mode::detach_equivalent_iterators(Iterator &)' : symbol cannot be defined within namespace 'detail'
The error seems to indicate a namespace problem rather then something specific to member template friends?
I don't think so. My hunch is that the problem is template-specific. The following test snippet works OK with MSVC 6.5 and Comeau 4.3.3. I guess MSVC 8.0 will handle it right too since MSVC 6.5 does, but I cannot verify this hypothesis: ****************TEST 0**************** namespace A{ namespace C{ class foo; } namespace B{ void f(C::foo& x); } namespace C{ class foo { int m; friend void B::f(foo&); }; } namespace B{ void f(C::foo& x) { x.m=0; } } } // A int main() { A::C::foo x; A::B::f(x); return 0; } ****************END TEST 0**************** When we introduce templates, Comeau still has it right, but MSVC 6.5 chokes on it (error C2888, the same that RudbekAssociates tests show for multi_index in VC 8.0): ****************TEST 1**************** namespace A{ namespace B{ template<typename X>void f(X& x) { x.m=0; } } namespace C{ class foo { int m; template<typename X> friend void B::f(X&); }; } } // A int main() { A::C::foo x; A::B::f(x); return 0; } ****************END TEST 1**************** Could some kind soul with access to MSVC 8.0 try TEST 0 and TEST 1 for this compiler and report the results? If TEST 0 passes and TEST 1 fails, IMHO BOOST_NO_MEMBER_TEMPLATE_FRIENDS should be set on for this compiler, or at least a weak variant, something like BOOST_NO_MEMBER_TEMPLATES_ACROSS_NAMESPACES Thanks, Joaquín M López Muñoz Telefónica, Investigación y Desarrollo