std::ranges::range_size_t, std::ranges::range_difference_t, std::ranges::range_value_t

Defined in header <ranges>

Defined in header `<ranges>`
template< ranges::sized_range R > using range_size_t = decltype(ranges::size(std::declval<R&>()));	(1)	(since C++20)
template< ranges::range R > using range_difference_t = std::iter_difference_t<ranges::iterator_t<R>>;	(2)	(since C++20)
template< ranges::range R > using range_value_t = std::iter_value_t<ranges::iterator_t<R>>;	(3)	(since C++20)

template< ranges::sized_range R >
using range_size_t = decltype(ranges::size(std::declval<R&>()));

(1)

(since C++20)

template< ranges::range R >
using range_difference_t = std::iter_difference_t<ranges::iterator_t<R>>;

(2)

(since C++20)

template< ranges::range R >
using range_value_t = std::iter_value_t<ranges::iterator_t<R>>;

(3)

(since C++20)

1) Used to obtain the size type of the sized_range type R.

2) Used to obtain the difference type of the iterator type of range type R.

3) Used to obtain the value type of the iterator type of range type R.

R - a range type or a sized_range type

iter_value_titer_reference_titer_const_reference_titer_difference_titer_rvalue_reference_titer_common_reference_t (C++20)(C++20)(C++23)(C++20)(C++20)(C++20)	computes the associated types of an iterator (alias template)
ranges::iterator_tranges::const_iterator_tranges::sentinel_tranges::const_sentinel_t (C++20)(C++23)(C++20)(C++23)	obtains iterator and sentinel types of a range (alias template)
ranges::range_reference_tranges::range_const_reference_tranges::range_rvalue_reference_tranges::range_common_reference_t (C++20)(C++23)(C++20)(C++20)	obtains reference types of a range (alias template)

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