# std::ranges::iterator_t, std::ranges::sentinel_t

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< cpp‎ | ranges

Defined in header `<ranges>` |  |
template <class T> using iterator_t = decltype(ranges::begin(declval<T&>())); | (1) | (since C++20)
template <class T> using sentinel_t = decltype(ranges::end(declval<T&>())); | (2) | (since C++20)

1) Used to obtain the iterator type of the type `T`.
2) Used to obtain the sentinel type of the type `T`.
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