borrowed_iterator_t.hpp

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//
// Created by yonggyulee on 2024/01/08.
//
 
#ifndef VCCC_RANGES_BORROWED_ITERATOR_T_HPP_
#define VCCC_RANGES_BORROWED_ITERATOR_T_HPP_
 
#include <type_traits>
 
#include "vccc/__ranges/borrowed_range.hpp"
#include "vccc/__ranges/dangling.hpp"
#include "vccc/__ranges/iterator_t.hpp"
#include "vccc/__ranges/range.hpp"
 
namespace vccc {
namespace ranges {
namespace detail {
 
template<typename R, bool v = range<R>::value /* true */>
struct borrowed_iterator_impl {
  using type = std::conditional_t<borrowed_range<R>::value, iterator_t<R>, dangling>;
};
 
template<typename R>
struct borrowed_iterator_impl<R, false> {};
 
} // namespace detail
 
 
template<typename R>
struct borrowed_iterator : detail::borrowed_iterator_impl<R> {};
 
template<typename R>
using borrowed_iterator_t = typename borrowed_iterator<R>::type;
 
 
} // namespace vccc
} // namespace ranges
 
#endif // VCCC_RANGES_BORROWED_ITERATOR_T_HPP_