id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
11934	Various warnings in 1.60 MPL when compiling with nvcc	Alex Grund <a.grund@…>	Aleksey Gurtovoy	"I'm compiling a larger project ( https://github.com/ComputationalRadiationPhysics/picongpu/ current dev) which uses boost heavily. However a lot of warnings are issued. Since we are quite agnostic to warnings (compiling with many warnings enabled and -Werror) this is troubling and it would be great, if those are fixed in future versions. If I remember correctly older versions (1.58) did not had them.

CUDA 7.0
{{{
boost/mpl/map/aux_/item.hpp(54): warning: ""boost::mpl::aux::type_wrapper<T> operator/(const boost::mpl::m_item<Key, T, Base> &, boost::mpl::aux::type_wrapper<Key> *)"" declares a non-template function -- add <> to refer to a template instance

boost/mpl/map/aux_/item.hpp(55): warning: ""boost::mpl::aux::type_wrapper<boost::mpl::pair<Key, T>> operator|(const boost::mpl::m_item<Key, T, Base> &, boost::mpl::next<Base::order>::type *)"" declares a non-template function -- add <> to refer to a template instance

boost/mpl/map/aux_/item.hpp(56): warning: ""char (&operator||(const boost::mpl::m_item<Key, T, Base> &, boost::mpl::aux::type_wrapper<Key> *))[boost::mpl::next<Base::order>::type::value]"" declares a non-template function -- add <> to refer to a template instance

boost/mpl/map/aux_/item.hpp(71): warning: ""boost::mpl::aux::type_wrapper<mpl_::void_> operator/(const boost::mpl::m_mask<Key, Base> &, boost::mpl::aux::type_wrapper<Key> *)"" declares a non-template function -- add <> to refer to a template instance

boost/mpl/map/aux_/item.hpp(72): warning: ""boost::mpl::aux::type_wrapper<mpl_::void_> operator|(const boost::mpl::m_mask<Key, Base> &, boost::mpl::x_order_impl<Base, Key>::type *)"" declares a non-template function -- add <> to refer to a template instance

boost/mpl/map/aux_/item.hpp:54:109: warning: friend declaration ‘boost::mpl::aux::type_wrapper<Key> boost::mpl::operator/(const boost::mpl::m_item<Key, T, Base>&, boost::mpl::aux::type_wrapper<T>*)’ declares a non-template function [-Wnon-template-friend]
     BOOST_MPL_AUX_MAP_OVERLOAD( aux::type_wrapper<T>, VALUE_BY_KEY, m_item, aux::type_wrapper<Key>* );
                                                                                                             ^
boost/mpl/map/aux_/item.hpp:54:109: note: (if this is not what you intended, make sure the function template has already been declared and add <> after the function name here) 
boost/mpl/map/aux_/item.hpp:55:90: warning: friend declaration ‘boost::mpl::aux::type_wrapper<boost::mpl::pair<T1, T2> > boost::mpl::operator|(const boost::mpl::m_item<Key, T, Base>&, boost::mpl::m_item<Key, T, Base>::order*)’ declares a non-template function [-Wnon-template-friend]
     BOOST_MPL_AUX_MAP_OVERLOAD( aux::type_wrapper<item>, ITEM_BY_ORDER, m_item, order* );
                                                                                          ^
boost/mpl/map/aux_/item.hpp:56:85: warning: friend declaration ‘char (& boost::mpl::operator||(const boost::mpl::m_item<Key, T, Base>&, boost::mpl::aux::type_wrapper<T>*))[boost::mpl::m_item<Key, T, Base>::order:: value]’ declares a non-template function [-Wnon-template-friend]
     BOOST_MPL_AUX_MAP_OVERLOAD( order_tag_, ORDER_BY_KEY, m_item, aux::type_wrapper<Key>* );
                                                                                     ^
boost/mpl/map/aux_/item.hpp:71:121: warning: friend declaration ‘boost::mpl::aux::type_wrapper<mpl_::void_> boost::mpl::operator/(const boost::mpl::m_mask<Key, Base>&, boost::mpl::aux::type_wrapper<T>*)’ declares a non-template function [-Wnon-template-friend]
     BOOST_MPL_AUX_MAP_OVERLOAD( aux::type_wrapper<void_>, VALUE_BY_KEY, m_mask, aux::type_wrapper<Key>* );
                                                                                                                         ^
boost/mpl/map/aux_/item.hpp:72:94: warning: friend declaration ‘boost::mpl::aux::type_wrapper<mpl_::void_> boost::mpl::operator|(const boost::mpl::m_mask<Key, Base>&, boost::mpl::m_mask<Key, Base>::key_order_*)’ declares a non-template function [-Wnon-template-friend]
     BOOST_MPL_AUX_MAP_OVERLOAD( aux::type_wrapper<void_>, ITEM_BY_ORDER, m_mask, key_order_* );
}}}

CUDA 7.5

{{{
boost/mpl/map/aux_/item.hpp(54): warning: ""boost::mpl::aux::type_wrapper<T> operator/(const boost::mpl::m_item<Key, T, Base> &, boost::mpl::aux::type_wrapper<Key> *)"" declares a non-template function -- add <> to refer to a template instance

boost/mpl/map/aux_/item.hpp(55): warning: ""boost::mpl::aux::type_wrapper<boost::mpl::pair<Key, T>> operator|(const boost::mpl::m_item<Key, T, Base> &, boost::mpl::next<Base::order>::type *)"" declares a non-template function -- add <> to refer to a template instance

boost/mpl/map/aux_/item.hpp(56): warning: ""char (&operator||(const boost::mpl::m_item<Key, T, Base> &, boost::mpl::aux::type_wrapper<Key> *))[boost::mpl::next<Base::order>::type::value]"" declares a non-template function -- add <> to refer to a template instance

boost/mpl/map/aux_/item.hpp(71): warning: ""boost::mpl::aux::type_wrapper<mpl_::void_> operator/(const boost::mpl::m_mask<Key, Base> &, boost::mpl::aux::type_wrapper<Key> *)"" declares a non-template function -- add <> to refer to a template instance

boost/mpl/map/aux_/item.hpp(72): warning: ""boost::mpl::aux::type_wrapper<mpl_::void_> operator|(const boost::mpl::m_mask<Key, Base> &, boost::mpl::x_order_impl<Base, Key>::type *)"" declares a non-template function -- add <> to refer to a template instance

boost/mpl/map/aux_/item.hpp:54:109: warning: friend declaration ‘boost::mpl::aux::type_wrapper<Key> boost::mpl::operator/(const boost::mpl::m_item<Key, T, Base>&, boost::mpl::aux::type_wrapper<T>*)’ declares a non-template function [-Wnon-template-friend]
     BOOST_MPL_AUX_MAP_OVERLOAD( aux::type_wrapper<T>, VALUE_BY_KEY, m_item, aux::type_wrapper<Key>* );
                                                                                                             ^
boost/mpl/map/aux_/item.hpp:54:109: note: (if this is not what you intended, make sure the function template has already been declared and add <> after the function name here) 
boost/mpl/map/aux_/item.hpp:55:90: warning: friend declaration ‘boost::mpl::aux::type_wrapper<boost::mpl::pair<T1, T2> > boost::mpl::operator|(const boost::mpl::m_item<Key, T, Base>&, boost::mpl::m_item<Key, T, Base>::order*)’ declares a non-template function [-Wnon-template-friend]
     BOOST_MPL_AUX_MAP_OVERLOAD( aux::type_wrapper<item>, ITEM_BY_ORDER, m_item, order* );
                                                                                          ^
boost/mpl/map/aux_/item.hpp:56:85: warning: friend declaration ‘char (& boost::mpl::operator||(const boost::mpl::m_item<Key, T, Base>&, boost::mpl::aux::type_wrapper<T>*))[boost::mpl::m_item<Key, T, Base>::order:: value]’ declares a non-template function [-Wnon-template-friend]
     BOOST_MPL_AUX_MAP_OVERLOAD( order_tag_, ORDER_BY_KEY, m_item, aux::type_wrapper<Key>* );
                                                                                     ^
boost/mpl/map/aux_/item.hpp:71:121: warning: friend declaration ‘boost::mpl::aux::type_wrapper<mpl_::void_> boost::mpl::operator/(const boost::mpl::m_mask<Key, Base>&, boost::mpl::aux::type_wrapper<T>*)’ declares a non-template function [-Wnon-template-friend]
     BOOST_MPL_AUX_MAP_OVERLOAD( aux::type_wrapper<void_>, VALUE_BY_KEY, m_mask, aux::type_wrapper<Key>* );
                                                                                                                         ^
boost/mpl/map/aux_/item.hpp:72:94: warning: friend declaration ‘boost::mpl::aux::type_wrapper<mpl_::void_> boost::mpl::operator|(const boost::mpl::m_mask<Key, Base>&, boost::mpl::m_mask<Key, Base>::key_order_*)’ declares a non-template function [-Wnon-template-friend]
     BOOST_MPL_AUX_MAP_OVERLOAD( aux::type_wrapper<void_>, ITEM_BY_ORDER, m_mask, key_order_* );
}}}
"	Bugs	new	To Be Determined	mpl	Boost 1.60.0	Cosmetic