C++ Vector cend() function

C++ Vector cend() function tutorial for beginners and professionals with examples on assign(), at(), back(), begin(), capacity(), cbegin(), cend(), clear(), crbegin(), crend(), data(), emplace(), end(), front(), rbegin(), resize(), size(), swap() etc.

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C++ Vector cend()

This function is used to point to the past-the-last element (element after the last element) in the vector.

cend() vs end()

The cend() function returns the constant iterator while end() function returns an iterator. The element pointed by the end() functioncan be modified but not by the cend() function.

Syntax

Consider a vector 'v', Syntax would be:

const_iterator itr=v.cend();

Parameter

It does not contain any parameter.

Return value

It returns a constant iterator pointing to thepast-the-last element in the vector.

Example 1

Let's see a simple example.

#include <iostream>
#include<vector>
using namespace std;
int main()
{
  vector<char> v{'T','u','t','o','r','i','a','l'};
vector<char>::const_iterator citr;
for(citr=v.cbegin();citr!=v.cend();citr++)
std::cout<<*citr;
return 0;
}

Output:

Tutorial

In this example, cend() function is accessed using an object of constant iterator type.

Example 2

Let's see a simple example.

#include <iostream>
#include<vector>
using namespace std;
int main()
{
vector<int> v{1,2,3,4,5};
vector<int>::const_iterator citr;
for(citr=v.cbegin();citr!=v.cend();citr++)
std::cout<<*citr<<" ";
return 0;
}

Output:

1 2 3 4 5

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