std::ranges::common_view<V>::end
From cppreference.com
< cpp | ranges | common view
|
constexpr
auto end(
) requires (
!
/*simple-view*/
<V>
)
;
|
(1) | (since C++20) |
|
constexpr
auto end(
)
const requires ranges::range
<
const V>
;
|
(2) | (since C++20) |
1) Returns an iterator representing the end of the
common_view, that is:
- ranges::begin (base_) + ranges::distance (base_) , if both ranges::random_access_range<V> and ranges::sized_range<V>
- std::common_iterator < ranges::iterator_t <V>, ranges::sentinel_t <V>> ( ranges::end (base_) )
base_
2) Same as (1), but
V is const-qualified.Parameters
(none)
Return value
An iterator representing the end of the underlying view.
Example
Run this code
#include <iostream> #include <numeric> #include <ranges> int main() { constexpr int n{4}; constexpr auto v1 = std::views::iota(1) | std::views::take(n) | std::views::common ; constexpr auto v2 = std::views::iota(2) | std::views::take(n) ; const int product = std::inner_product(v1.begin(), v1.end(), v2.begin(), 0); std::cout << product << '\n'; }
Output:
40
Defect reports
The following behavior-changing defect reports were applied retroactively to previously published C++ standards.
| DR | Applied to | Behavior as published | Correct behavior |
|---|---|---|---|
| LWG 4012 | C++20 | non-const overload missed simple-view check | added |
See also
| returns an iterator to the beginning (public member function) |
|
|
(C++20)
|
returns an iterator to the beginning of a range (customization point object) |
|
(C++20)
|
returns a sentinel indicating the end of a range (customization point object) |