Mostra dimensione, min e max per ogni tipo base C++

show_cpp_types.cc

#include <iostream>
#include <limits>
#include <string_view>
#include <type_traits>

template <typename T> void print_details(std::string_view type) {
  std::cout << type << " | " << 8 * sizeof(T) << " | ";
  if constexpr (std::is_same_v<T, char> || std::is_same_v<T, unsigned char>) {
    std::cout << static_cast<int>(std::numeric_limits<T>::min()) << " | "
              << static_cast<int>(std::numeric_limits<T>::max()) << " |\n";
  } else {
    std::cout << std::numeric_limits<T>::min() << " | "
              << std::numeric_limits<T>::max() << " |\n";
  }
}

int main() {
  print_details<bool>("bool");
  print_details<char>("signed char");
  print_details<unsigned char>("unsigned char");
  print_details<short>("short");
  print_details<unsigned short>("unsigned short");
  print_details<int>("int");
  print_details<unsigned>("unsigned");
  print_details<long>("long");
  print_details<unsigned long>("unsigned long");
  print_details<float>("float");
  print_details<double>("double");
  print_details<long double>("long double");
}