std::experimental::ranges::Range
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< cpp | experimental | ranges
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Feature test macros (C++20)
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Library fundamentals 2 (library fundamentals TS v2)
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Defined in header
<experimental/ranges/range>
template< class T >
(ranges TS)
concept bool Range =
requires(T&& t) {
ranges::begin (t); /* not necessarily equality-preserving (see below) */
ranges::end (t);
Given an lvalue t of type std::remove_reference_t <T>, Range<T> is satisfied only if
-
[ranges::begin (t),ranges::end (t))denotes a range; and - both ranges::begin (t) and ranges::end (t) are amortized constant time and non-modifying.
- If ranges::iterator_t <T> satisfies
ForwardIterator, ranges::begin (t) is equality preserving.