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std::flat_multimap<Key,T,Compare,KeyContainer,MappedContainer>::end, std::flat_multimap<Key,T,Compare,KeyContainer,MappedContainer>::cend

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< cpp‎ | container‎ | flat multimap
Revision as of 11:31, 21 January 2024 by Space Mission (Talk | contribs)

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iterator end() noexcept;
(1) (since C++23)
const_iterator end() const noexcept;
(2) (since C++23)
const_iterator cend() const noexcept;
(3) (since C++23)

Returns an iterator to the element following the last element of the flat_multimap.

This element acts as a placeholder; attempting to access it results in undefined behavior.

range-begin-end.svg

Contents

[edit] Parameters

(none)

[edit] Return value

Iterator to the element following the last element.

[edit] Complexity

Constant.

[edit] Example

#include <iostream>
#include <flat_map>
 
int main()
{
    std::flat_multimap<int, int> map{{4, 13}, {9, 94}, {1, 19}, {4, 42}};
 
    for (auto it = map.cbegin(); it != map.cend(); ++it)
        std::cout << '[' << it->first << "] = " << it->second << '\n';
 
    // Unlike std::multimap's bidirectional iterators, the std::flat_multimap
    // iterators are random-access, so they can be used with the operator[]:
    auto it = map.cbegin();
    assert(it[1] == 19);
    assert(it[4] == 13);
    assert(it[4] == 42);
    assert(it[9] == 94);
}

Output:

[1] = 19
[4] = 13
[4] = 42
[9] = 94

[edit] See also

returns an iterator to the beginning
(public member function) [edit]
(C++11)(C++14)
returns an iterator to the end of a container or array
(function template) [edit]