PolyItem: simplify; disambiguate fcts

Base/Math/IntegratorMCMiser.h

@@ -22,7 +22,8 @@
 #include <memory>
 
 //! Alias template for member function with signature double f(double)
-template <class T> using miser_integrand = double (T::*)(const double*, size_t, const void*) const;
+template <typename T>
+using miser_integrand = double (T::*)(const double*, size_t, const void*) const;
 
 //! Template class to use Monte Carlo MISER integration of class member functions.
 //!
@@ -33,7 +34,7 @@ template <class T> using miser_integrand = double (T::*)(const double*, size_t,
 //!       'auto integrator = make_integrator_miser(this, mem_function, dimension)'
 //! - Call: 'integrator.integrate(lmin, lmax, data, n_points)'
 
-template <class T> class IntegratorMCMiser {
+template <typename T> class IntegratorMCMiser {
 public:
     //! structure holding the object and possible extra parameters
     struct CallBackHolder {
@@ -67,11 +68,11 @@ private:
 };
 
 //! Alias template for handle to a miser integrator
-template <class T> using P_integrator_miser = std::unique_ptr<IntegratorMCMiser<T>>;
+template <typename T> using P_integrator_miser = std::unique_ptr<IntegratorMCMiser<T>>;
 
 //! Template function to create an integrator object
 
-template <class T>
+template <typename T>
 P_integrator_miser<T> make_integrator_miser(const T* object, miser_integrand<T> mem_function,
                                             size_t dim)
 {
@@ -83,7 +84,7 @@ P_integrator_miser<T> make_integrator_miser(const T* object, miser_integrand<T>
 //  Implementation
 //  ************************************************************************************************
 
-template <class T>
+template <typename T>
 IntegratorMCMiser<T>::IntegratorMCMiser(const T* p_object, miser_integrand<T> p_member_function,
                                         size_t dim)
     : m_object(p_object)
@@ -99,13 +100,13 @@ IntegratorMCMiser<T>::IntegratorMCMiser(const T* p_object, miser_integrand<T> p_
     m_random_gen = gsl_rng_alloc(random_type);
 }
 
-template <class T> IntegratorMCMiser<T>::~IntegratorMCMiser()
+template <typename T> IntegratorMCMiser<T>::~IntegratorMCMiser()
 {
     gsl_monte_miser_free(m_gsl_workspace);
     gsl_rng_free(m_random_gen);
 }
 
-template <class T>
+template <typename T>
 double IntegratorMCMiser<T>::integrate(double* min_array, double* max_array, const void* params,
                                        size_t n_points) const
 {