How to Split a String by a Delimiter in C++? - Coding

In C++, a string stores a sequence of characters that represents some textual data. The delimiters are used to separate those sequences of characters in a string. This process is called splitting or tokenization. In this article, we will learn how to split a string by a delimiter in C++.

For Example,

Input:
str="geeks,for,geeks"

Output:
String after splitting:
geeks
for
geeks

Split String Using Delimiter in C++

To split a string using a delimiter, we can use std::getline combined with std::stringstream to extract all the tokens from the string separated by a specified delimiter, and keep storing the token in a vector of string.

C++ Program to Split a String by a Delimiter

C++

// C++ Program to split a string by a delimiter 
  
#include <iostream> 
#include <sstream> 
#include <vector> 
  
using namespace std; 
  
int main() 
{ 
    // Input string 
    string inputString = "geeks,for,geeks"; 
  
    // Create a stringstream object with the input string 
    stringstream ss(inputString); 
  
    // Tokenize the input string by comma delimiter 
    string token; 
    vector<string> tokens; 
    char delimiter = ','; 
  
    while (getline(ss, token, delimiter)) { 
        tokens.push_back(token); 
    } 
  
    // Output the string after splitting 
    cout << "String after splitting: " << endl; 
    for (const auto& part : tokens) { 
        cout << part << endl; 
    } 
  
    return 0; 
}

Output

String after splitting: 
geeks
for
geeks

Time Complexity: O(n)
Space Complexity: O(n)

Reffered: https://www.geeksforgeeks.org

C++

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