iter_reference_t.hpp

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//
// Created by cosge on 2023-12-02.
//
 
#ifndef VCCC_ITERATOR_ITER_REFERENCE_T_HPP_
#define VCCC_ITERATOR_ITER_REFERENCE_T_HPP_
 
#include "vccc/__concepts/dereferenceable.hpp"
 
namespace vccc {
namespace detail {
 
template<typename T, bool v = dereferenceable<T>::value>
struct iter_reference_impl {};
 
template<typename T>
struct iter_reference_impl<T, true> {
  using type = decltype(*std::declval<T&>());
};
 
} // namespace detail
 
 
template<typename T>
struct iter_reference : detail::iter_reference_impl<T> {};
 
template<typename T>
using iter_reference_t = typename iter_reference<T>::type;
 
 
} // namespace vccc
 
#endif // VCCC_ITERATOR_ITER_REFERENCE_T_HPP_