unordered_multimap cend() function in C++ STL

Last Updated : 08 Aug, 2018

The unordered_multimap::cend() is a built-in function in C++ STL which returns a constant iterator pointing to the position after the last element in the container or to the position after the last element in one of its bucket. Syntax:

unordered_multimap_name.cend(n)

Parameters: The function accepts one parameter. If a parameter is passed, it returns a constant iterator pointing to the position after the last element in one of its bucket. If no parameter is passed, then it returns a constant iterator pointing to the position after the last element in the unordered_multimap container. Return Value: It returns a constant iterator. It cannot be used to modify the key and element of the unordered_multimap element. Below programs illustrates the above function: Program 1:

CPP

// C++ program to illustrate the // unordered_multimap::cend() #include <bits/stdc++.h> using namespace std; int main() {  // declaration  unordered_multimap<int, int> sample;  // inserts key and element  sample.insert({ 1, 2 });  sample.insert({ 3, 4 });  sample.insert({ 3, 4 });  sample.insert({ 2, 3 });  sample.insert({ 2, 3 });  // prints all element  cout << "Key and Elements:";  for (auto it = sample.cbegin(); it != sample.cend(); it++)  cout << "\n " << it->first << "\t "   << it->second;  return 0; }

Output:

 Key and Elements: 2 3 2 3 1 2 3 4 3 4

Program 2:

CPP

// C++ program to illustrate the // unordered_multimap::cend(bucket) #include <bits/stdc++.h> using namespace std; int main() {  // declaration  unordered_multimap<int, int> sample;  // inserts key and element  sample.insert({ 1, 2 });  sample.insert({ 3, 4 });  sample.insert({ 3, 4 });  sample.insert({ 2, 3 });  sample.insert({ 2, 3 });  // prints all element  cout << "Key and Elements of first bucket:";  for (auto it = sample.cbegin(1); it != sample.cend(1); it++)  cout << "\n " << it->first << "\t "   << it->second;  return 0; }