std::unordered_multiset::begin

iterator begin();		(since C++11)
const_iterator begin() const;		(since C++11)
const_iterator cbegin() const;		(since C++11)

Returns an iterator to the first element of the container.

If the container is empty, the returned iterator will be equal to end().

Parameters

(none).

Return value

Iterator to the first element.

Exceptions

noexcept specification:

noexcept

Complexity

Constant.

Example

#include <iostream>
#include <iterator>
#include <string>
#include <unordered_set>
 
int main() {
    const std::unordered_multiset<std::string> words = {
        "some", "words", "to", "count",
        "count", "these", "words"
    };
 
    for(auto it = words.begin(); it != words.end(); )
    {
        auto cnt = words.count(*it);
        std::cout << *it << ":\t" << cnt << '\n';
        std::advance(it, cnt); // all cnt elements have equivalent keys
    }
}

Possible output:

some:   1
words:  2
to:     1
count:  2
these:  1