std::array<T,N>::rend, std::array<T,N>::crend
reverse_iterator rend() noexcept; | (1) |
(since C++11) (constexpr since C++17) |
const_reverse_iterator rend() const noexcept; | (2) |
(since C++11) (constexpr since C++17) |
const_reverse_iterator crend() const noexcept; | (3) |
(since C++11) (constexpr since C++17) |
Returns a reverse iterator to the element following the last element of the reversed array. It corresponds to the element preceding the first element of the non-reversed array. This element acts as a placeholder, attempting to access it results in undefined behavior.
Return value
Reverse iterator to the element following the last element.
Complexity
Constant.
Example
#include <algorithm>
#include <iostream>
#include <array>
int main()
{
std::array<int, 11> a{1, 11, 11, 35, 0, 12, 79, 76, 76, 69, 40};
// Print elements of container in reverse order using const_reverse_iterator's.
std::for_each(a.crbegin(), a.crend(), [](int e){ std::cout << e << ' '; });
std::cout << '\n';
// Modify each element of container using non-const reverse_iterator's.
std::for_each(a.rbegin(), a.rend(), [](int& e){ e += 32; });
// Print elements as chars in reverse order using const_reverse_iterator's.
std::for_each(a.crbegin(), a.crend(), [](char e){ std::cout << e; });
std::cout << '\n';
}
Output:
40 69 76 76 79 12 0 35 11 11 1 Hello, C++!
See also
| returns a reverse iterator to the beginning (public member function) |
|
|
(C++14) | returns a reverse end iterator for a container or array (function template) |
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