std::is_floating_point

// is_floating_point example
#include <iostream>
#include <type_traits>

int main() {
  std::cout << std::boolalpha;
  std::cout << "is_floating_point:" << std::endl;
  std::cout << "int: " << std::is_floating_point<int>::value << std::endl;
  std::cout << "float: " << std::is_floating_point<float>::value << std::endl;
  std::cout << "const double: " << std::is_floating_point<const double>::value << std::endl;
  return 0;
}