1.6 KiB
1.6 KiB
[range.access.crend]
25 Ranges library [ranges]
25.3 Range access [range.access]
25.3.9 ranges::crend [range.access.crend]
The name ranges::crend denotes a customization point object ([customization.point.object]).
Given a subexpression E with type T, let t be an lvalue that denotes the reified object for E.
Then:
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If E is an rvalue andenable_borrowed_range<remove_cv_t> is false,ranges::crend(E) is ill-formed.
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Otherwise, let U be ranges::rend(possibly-const-range(t)). ranges::crend(E) is expression-equivalent toconst_sentinel<decltype(U)>(U).
[Note 1:
Whenever ranges::crend(E) is a valid expression, the types S and I of the expressionsranges::crend(E) and ranges::crbegin(E) model sentinel_for<S, I>.
If S models input_iterator, then S also models constant-iterator.
â end note]