std::experimental::ranges::Range

Defined in header `<experimental/ranges/range>`
template < class T > concept bool Range = requires(T&& t) { ranges::begin(t); /* not necessarily equality-preserving (see below) */ ranges::end(t); };		(ranges TS)

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.

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Language support library
Concepts library (C++20)
Diagnostics library
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Strings library
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Ranges library (C++20)
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Numerics library
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Regular expressions library (C++11)
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Technical Specifications

Filesystem library (filesystem TS)
Library fundamentals (library fundamentals TS)
Library fundamentals 2 (library fundamentals TS v2)
Library fundamentals 3 (library fundamentals TS v3)
Extensions for parallelism (parallelism TS)
Extensions for parallelism 2 (parallelism TS v2)
Extensions for concurrency (concurrency TS)
Concepts (concepts TS)
Ranges (ranges TS)
Mathematical special functions (special functions TR)