Concept definition

template<typename EvaluatorType>
concept mgis::function::ST2toST2EvaluatorConcept =  (EvaluatorConcept<EvaluatorType>)&&  
      (::tfel::math::ST2toST2Concept<evaluator_result<EvaluatorType>>)&&  
      (std::same_as<
          std::decay_t<::tfel::math::base_type<
              ::tfel::math::numeric_type<evaluator_result<EvaluatorType>>>>,
          real>)