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Actual Parameter and Formal Parameter in C++ Adding Two Strings in C++ Adding Vectors in C++ How To Convert a Qstring to Hexadecimal in C++ PAIR IN C++ C++ Program to Count Positive and Negative Numbers in an Array Department Store Management System (DSMS) using C+ Print all Substrings of a String that has equal number of vowels and consonants in C/C++ Accumulator in C++ Acess Specifiers in C++ Add Two Matrix in C++ Add two Numbers in C++ program Add two Numbers Represented by Linked Lists in C++ Associative Containers in C++ C++ Books for Beginners Dynamic Initialization of Objects in C++ Array sum in c++ stl The distinction between the C++ copy constructor and assignment operator Boost::split in c++ library Difference between Declaration of User Defined Function Inside main() and Outside of main() Isprint() in C++ Std partition point in c++ Opening and Closing a File in C in C++ Pdf Overriding Member Function in C++ Password Validation in C++ PID Controller C++ Best C++ Online Course 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C++ Vector crend()

This function is used to point the element preceding the first element in the vector container. Itrefers as reverse end.

Syntax

Consider a vector 'v'. Syntax would be:

Parameter

It does not contain any parameter.

Return value

It returns the constant reverse iterator pointing to the reverse end in the sequence.

Example 1

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_reverse_iterator itr=v.crend()-2;
  *itr=9;
cout<<*itr;
return 0;
}
In this example, it shows that crend() function does not modify the value otherwise, it shows an error.

Example 2

Let's see a another simple example

#include <iostream>
#include<vector>
using namespace std;
int main()
{
vector<string>str{"java","C","C++",".Net"};
vector<string>::const_reverse_iterator itr=str.crend()-1;
std::cout<< *itr;
return 0;
}

Output:

java

In this example, crend() function access the first element of the vector container.

Next TopicC++ Vector

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