std::ranges::iterator_t, std::ranges::sentinel_t, std::ranges::range_size_t, std::ranges::range_difference_t, std::ranges::range_value_t, std::ranges::range_reference_t, std::ranges::range_rvalue_reference_t
From cppreference.com
Defined in header <ranges>
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template <class T> using iterator_t = decltype(ranges::begin(std::declval<T&>())); |
(1) | (since C++20) |
template <ranges::range R> using sentinel_t = decltype(ranges::end(std::declval<R&>())); |
(2) | (since C++20) |
template <ranges::sized_range R> using range_size_t = decltype(ranges::size(std::declval<R&>())); |
(3) | (since C++20) |
template <ranges::range R> using range_difference_t = std::iter_difference_t<ranges::iterator_t<R>>; |
(4) | (since C++20) |
template <ranges::range R> using range_value_t = std::iter_value_t<ranges::iterator_t<R>>; |
(5) | (since C++20) |
template <ranges::range R> using range_reference_t = std::iter_reference_t<ranges::iterator_t<R>>; |
(6) | (since C++20) |
template <ranges::range R> using range_rvalue_reference_t = |
(7) | (since C++20) |
1) Used to obtain the iterator type of the type
T
.4) Used to obtain the difference type of the iterator type of range type
R
.5) Used to obtain the value type of the iterator type of range type
R
.6) Used to obtain the reference type of the iterator type of range type
R
.7) Used to obtain the rvalue_reference type of the iterator type of range type
R
.Template parameters
T | - | a type that can be used in std::ranges::begin |
R | - | a range type or a sized_range type
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Notes
iterator_t
can be applied to non-range types, e.g. arrays with unknown bound.
See also
(C++20)(C++20)(C++20)(C++20)(C++20) |
computes the associated types of an iterator (alias template) |