table of contents
std::flat_multimap::rend,(3) | C++ Standard Libary | std::flat_multimap::rend,(3) |
NAME¶
std::flat_multimap::rend, - std::flat_multimap::rend,
Synopsis¶
reverse_iterator rend() noexcept; (1) (since C++23)
const_reverse_iterator rend() const noexcept; (2) (since C++23)
const_reverse_iterator crend() const noexcept; (3) (since C++23)
Returns a reverse iterator to the element following the last element of the
reversed
flat_multimap. It corresponds to the element preceding the first element of
the
non-reversed flat_multimap. This element acts as a placeholder, attempting to
access
it results in undefined behavior.
range-rbegin-rend.svg
Parameters¶
(none)
Return value¶
Reverse iterator to the element following the last element.
Complexity¶
Constant.
Example¶
// Run this code
#include <chrono>
#include <iomanip>
#include <iostream>
#include <string_view>
#include <flat_map>
using namespace std::chrono;
int main()
{
const std::flat_multimap<year_month_day, int> messages
{
{February/17/2023, 10},
{February/17/2023, 20},
{February/16/2022, 30},
{October/22/2022, 40},
{June/14/2022, 50},
{November/23/2021, 60},
{December/10/2022, 55},
{December/12/2021, 45},
{April/1/2020, 42},
{April/1/2020, 24}
};
std::cout << "Messages received (date order is reversed):\n";
for (auto it = messages.crbegin(); it != messages.crend(); ++it)
std::cout << it->first << " : " <<
it->second << '\n';
}
Possible output:¶
Messages received (date order is reversed):
2023-02-17 : 20
2023-02-17 : 10
2022-12-10 : 55
2022-10-22 : 40
2022-06-14 : 50
2022-02-16 : 30
2021-12-12 : 45
2021-11-23 : 60
2020-04-01 : 24
2020-04-01 : 42
See also¶
rbegin returns a reverse iterator to the beginning
crbegin (public member function)
rend returns a reverse end iterator for a container or array
crend (function template)
(C++14)
2024.06.10 | http://cppreference.com |