utx::real_uct is the concept of utxcpp basic class types of real number types. See Utxcpp class types .
The basic class types of utxcpp that satisfy utx::real_uct are the classes of integral and floating types.
"real" means the real number in math.
c++ example.
#include <utxcpp/core.hpp> template <utx::real_uct type_xta> class my_data { }; int main() { my_data<utx::ix32> d1; // OK //my_data<utx::i32> d2; // error, utx::i32 is not class type. static_assert(utx::real_uct<utx::ix32>); utx::print(utx::real_uct<utx::ix32>, utx::real_uct<utx::i32>); // true false }