type_traits.h

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#pragma once
 
namespace type_traits {
 
  // std::remove_reference. See https://en.cppreference.com/w/cpp/types/remove_reference.html
  template <typename T>
  struct remove_reference {
    using type = T;
  };
  template <typename T>
  struct remove_reference<T&> {
    using type = T;
  };
  template <typename T>
  struct remove_reference<T&&> {
    using type = T;
  };
 
}