cppdraft_translate/cppdraft/range/enumerate/sentinel.md

[range.enumerate.sentinel]

25 Ranges library [ranges]

25.7 Range adaptors [range.adaptors]

25.7.24 Enumerate view [range.enumerate]

25.7.24.4 Class template enumerate_view​::​sentinel [range.enumerate.sentinel]

🔗

namespace std::ranges {template<view V>requires range-with-movable-referencestemplateclass enumerate_view::sentinel {using Base = maybe-const<Const, V>; // exposition only sentinel_t<Base> end_ = sentinel_t<Base>(); // exposition onlyconstexpr explicit sentinel(sentinel_t<Base> end); // exposition onlypublic:sentinel() = default; constexpr sentinel(sentinel other)requires Const && convertible_to<sentinel_t, sentinel_t<Base>>; constexpr sentinel_t<Base> base() const; templaterequires sentinel_for<sentinel_t<Base>, iterator_t<maybe-const<OtherConst, V>>>friend constexpr bool operator==(const iterator& x, const sentinel& y); templaterequires sized_sentinel_for<sentinel_t<Base>, iterator_t<maybe-const<OtherConst, V>>>friend constexpr range_difference_t<maybe-const<OtherConst, V>>operator-(const iterator& x, const sentinel& y); templaterequires sized_sentinel_for<sentinel_t<Base>, iterator_t<maybe-const<OtherConst, V>>>friend constexpr range_difference_t<maybe-const<OtherConst, V>>operator-(const sentinel& x, const iterator& y); };}

🔗

constexpr explicit sentinel(sentinel_t<Base> end);

1

#

Effects: Initializes end_ with std​::​move(end).

🔗

constexpr sentinel(sentinel<!Const> other) requires Const && [convertible_to](concept.convertible#concept:convertible_to "18.4.4 Concept convertible_­to [concept.convertible]")<sentinel_t<V>, sentinel_t<Base>>;

2

#

Effects: Initializes end_ with std​::​move(other.end_).

🔗

constexpr sentinel_t<Base> base() const;

3

#

Effects: Equivalent to: return end_;

🔗

template<bool OtherConst> requires [sentinel_for](iterator.concept.sentinel#concept:sentinel_for "24.3.4.7 Concept sentinel_­for [iterator.concept.sentinel]")<sentinel_t<Base>, iterator_t<maybe-const<OtherConst, V>>> friend constexpr bool operator==(const iterator<OtherConst>& x, const sentinel& y);

4

#

Effects: Equivalent to: return x.current_ == y.end_;

🔗

template<bool OtherConst> requires [sized_sentinel_for](iterator.concept.sizedsentinel#concept:sized_sentinel_for "24.3.4.8 Concept sized_­sentinel_­for [iterator.concept.sizedsentinel]")<sentinel_t<Base>, iterator_t<maybe-const<OtherConst, V>>> friend constexpr range_difference_t<maybe-const<OtherConst, V>> operator-(const iterator<OtherConst>& x, const sentinel& y);

5

#

Effects: Equivalent to: return x.current_ - y.end_;

🔗

template<bool OtherConst> requires [sized_sentinel_for](iterator.concept.sizedsentinel#concept:sized_sentinel_for "24.3.4.8 Concept sized_­sentinel_­for [iterator.concept.sizedsentinel]")<sentinel_t<Base>, iterator_t<maybe-const<OtherConst, V>>> friend constexpr range_difference_t<maybe-const<OtherConst, V>> operator-(const sentinel& x, const iterator<OtherConst>& y);

6

#

Effects: Equivalent to: return x.end_ - y.current_;