How to Remove Last Character From C++ String?

In C++, strings are stored as the std::string class objects. In this article, we will look at how to remove the last character from this C++ string object.

For Example,

Input: Hello! Geeks

Output: Hello! Geek

Remove the Last Character from a String in C++

To remove the last character from a string, we can use the pop_back() function which is used to pop the character that is placed at the last in the string and finally print the string after removal.

C++ Program to Remove the Last Character from a String

The below example demonstrates the use of the pop_back() function to remove the last character from the string.

C++

// C++ program to remove the last character from a string.

#include <iostream>
#include <string>
using namespace std;

int main()
{

  //declaring a string
    string myString = "Hello,Geeks";
  //printing string before deletion
    cout << "Before deletion string is : " << myString << endl;

    // Checking if the string is not empty before removing the last character
    if (!myString.empty())
    {
        myString.pop_back();
    }

  //printing the string after deletion
    cout << "String after removing the last character: " << myString << endl;

    return 0;
}

Output

Before deletion string is : Hello,Geeks
String after removing the last character: Hello,Geek

Note: pop_back() function works in-place meaning the modification is done in the original string only which results in a reduction of the size of the original string by one.

We can also use the erase() and resize() function to remove the last character from a string.