C++ multiset end() function

C++ multiset end() Function with Examples on tutorial for beginners and professionals with examples on multiset, begin(), end(), multiset constructor, ~multiset destructor, operator=, rbegin(), rend() etc.

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C++ multiset end()

C++ multiset end() function is used to return an iterator which is next to the last entry in the multiset.

Note:- This is a placeholder. No element exists in this location and attempting to access is undefined behavior.

Syntax

      iterator end();                            //until C++ 11

const_iterator end() const;                //until C++ 11

      iterator end() noexcept;              //since C++ 11

const_iterator end() const noexcept;  //since C++ 11

Parameter

None

Return value

It returns an iterator which is pointing next to the last element of the multiset.

Complexity

Constant.

Iterator validity

No changes.

Data Races

Concurrently accessing the elements of a multiset is safe.

The container is accessed neither the non-const nor the const versions modify the container.

Exception Safety

This member function never throws exception.

Example 1

Let's see the simple example for end() function:

#include <iostream>
#include <set>

using namespace std;

int main ()
{
  multiset<string> mymultiset = {"Java", "C++", "Java", "C++"};

  // show content:
  for (multiset<string>::iterator it=mymultiset.begin(); it!=mymultiset.end(); ++it)
    cout << *it<< '\n';

  return 0;
}

Output:

C++
C++
Java
Java

In the above example, end() function is used to return an iterator pointing next to the last element in the mymultiset multiset.

Example 2

Let's see a simple example to iterate over the multiset using for-each loop:

#include <iostream>
#include <set>

using namespace std;

int main()
{
  multiset<int> c;
  c.insert(5);
  c.insert(2);
  c.insert(1);
  c.insert(1);
  c.insert(0);
  c.insert(0);
  c.insert(2);

  multiset<int>::iterator i = c.begin();
  while (i != c.end())
    cout << *i++ << " ";
  cout << endl;
}

Output:

0 0 1 1 2 2 5

Example 3

Let's see a simple example to iterate over the multiset using while loop:

#include <iostream>
#include <set>
#include <string>

int main()
{
    using namespace std;
 
      multiset<string> mymultiset = { "Nikita","Deep","Deep","Sonu","Aman" };

 cout<<"Elements of mymultiset are: "<<endl;
    multiset<string>::const_iterator it; // declare an iterator

    it = mymultiset.begin(); // assign it to the start of the multiset

    while (it != mymultiset.end()) // while it hasn't reach the end
    {
cout << *it << "\n"; 

// print the value of the element it points to

++it; // and iterate to the next element
    }
 
    cout << endl;
}

Output:

Elements of mymultiset are: 
Aman
Deep
Deep
Nikita
Sonu

In the above example, end() function is used to return an iterator pointing next to the last element in the mymultiset multiset.

Example 4

Let's see a simple example:

#include <iostream>
#include <string>
#include <set>


using namespace std;

int main ()
{
    int val;
    multiset<int> c = {10,20,10,20,40,50};
 
    cout<<"Enter value to find: ";
    cin>>val;

    auto result = c.find(val);  
    
    //find until end of the multiset elements
    if (result != c.end()) {  
        cout << "Element found: "<< *result; 
        cout << endl;  
    } else {  
        cout << "Element not found." << endl;  
    }  
    
  return 0;
}

Output:

Enter value to find: 60
Element not found.


Enter value to find: 20
Element found: 20

In the above example, end() function is used to return an iterator pointing next to the last element in the mymultiset multiset.

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C++ multiset end() function

C++ multiset end()

Note:- This is a placeholder. No element exists in this location and attempting to access is undefined behavior.

Syntax

Parameter

Return value

Complexity

Iterator validity

Data Races

Exception Safety

Example 1

Example 2

Example 3

Example 4

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