Hi there, I'd like to make sure that some of my classes are only used with particular value types. This is easy enough to implement for integers, using BOOST_CONCEPT_ASSERT((boost::Integer<T>)) . However, there is no boost::FloatingPoint<T>, which is a bit odd. The following, easy code seems to do what I want, but reqires inclusion of boost/concept/detail/concept_def.hpp /*****************************************************************/ namespace boost { BOOST_concept(FloatingPoint, (T)) { BOOST_CONCEPT_USAGE(FloatingPoint) { x.error_type_must_be_a_floating_point_type(); } private: T x; }; template <> struct FloatingPoint<long double> {}; template <> struct FloatingPoint<double> {}; template <> struct FloatingPoint<float> {}; } /*****************************************************************/
From what I understand, this means that I am relying on implementation details with the above code.
Is there any way to do the above in a portable way ? Thanks and Best Regards, Ruediger P.S.: If the above seems acceptable, please feel free to include it in Boost.Concept.