cpp-argument-parser/include/program_args/any.h

//
//  any.h
//  program_args
//
//  Created by Sam Jaffe on 2/25/23.
//

#pragma once

#include <typeindex>

namespace program::detail {
class Any {
public:
  Any() = default;
  template <typename T> Any(T const * ptr) : type_(typeid(T)), ptr_(ptr) {}

  template <typename T> T const * get() const {
    if (type_ != typeid(T)) { return nullptr; }
    return static_cast<T const *>(ptr_);
  }

private:
  std::type_index type_ = typeid(void);
  void const * ptr_ = nullptr;
};
}