Boost C++ Libraries

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Struct template add_typeof_helper<quantity< unit< Dim1, System1 >, X >, quantity< unit< Dim2, System2 >, Y >>

boost::units::add_typeof_helper<quantity< unit< Dim1, System1 >, X >, quantity< unit< Dim2, System2 >, Y >>

Synopsis

// In header: <boost/units/quantity.hpp>

template<typename Dim1, typename System1, typename Dim2, typename System2, 
         typename X, typename Y> 
struct add_typeof_helper<quantity< unit< Dim1, System1 >, X >, quantity< unit< Dim2, System2 >, Y >> {
};

Description

for sun CC we need to invoke SFINAE at the top level, otherwise it will silently return int.