is_instance_of.hpp

// clang-format off
/*****************************************************************//**
 * \file   is_instance_of.hpp
 * \brief  Implementation of popular Python function isinstance()
 * Identify whether an object is of some specific types
 * Base of a C++11 function std::is_base_of<Base, T>::value
 * 
 * $ g++ is_instance_of.hpp -std=c++2a
 * 
 * \author Xuhua Huang
 * \date   October 2021
 *********************************************************************/
// clang-format on

#pragma once
#ifndef IS_INSTANCE_OF_HPP
#define IS_INSTANCE_OF_HPP

#include <type_traits>

namespace util {
namespace type {

/* Template to determine the type of parsed object. */
template <typename Base, typename T> inline bool is_instance_of(const T &) {
  return std::is_base_of<Base, T>::value;
}

} // namespace type
} // namespace util

#endif // !IS_INSTANCE_OF_HPP