#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) && !defined(BOOST_TT_TEST_MS_FUNC_SIGS)
template<bool is_ref = true>
struct is_function_chooser
#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) && !defined(BOOST_TT_TEST_MS_FUNC_SIGS)
template<bool is_ref = true>
struct is_function_chooser
BOOST_TT_AUX_BOOL_TRAIT_DEF1(is_function,T,__is_function(T))
#else
BOOST_TT_AUX_BOOL_TRAIT_DEF1(is_function,T,::boost::detail::is_function_impl<T>::value)
BOOST_TT_AUX_BOOL_TRAIT_DEF1(is_function,T,__is_function(T))
#else
BOOST_TT_AUX_BOOL_TRAIT_DEF1(is_function,T,::boost::detail::is_function_impl<T>::value)
BOOST_TT_AUX_BOOL_TRAIT_PARTIAL_SPEC1_1(typename T,is_function,T&&,false)
#endif
#endif
BOOST_TT_AUX_BOOL_TRAIT_PARTIAL_SPEC1_1(typename T,is_function,T&&,false)
#endif
#endif