Split string by delimiter c++ – Cut string c++ – C++ : How to split a string using String and character as Delimiter?

September 1, 2022September 1, 2022 by Satyabrata Jena

Cut string c++: In the previous article, we have discussed about How to remove Substring from a String in C++. Let us learn how to split a string using String and character as Delimiter in C++ Program.

Split a string using another string and character as Delimiter

Split string by delimiter c++: In this article we see 2 different ways to split a std::string in C++.

Splitting a string using a char as delimiter :

C++ split string by delimiter: Here the passed string will be converted into stringstream and from that each word will be fetched using getline method.

#include <string>
#include <iostream>
#include <sstream>
#include <vector>

// Using delimeter as a character.

std::vector<std::string> split(std::string strToSplit, char delimeter)
{
    std::stringstream ss(strToSplit);
    std::string item;
    std::vector<std::string> splittedStrings;
    while (std::getline(ss, item, delimeter))
    {
        splittedStrings.push_back(item);
    }
    return splittedStrings;
}

int main()
{
    std::string str = "You are studying from BtechGeeks";
    // Spliting the string by ''
    std::vector<std::string> splittedStrings = split(str, ' ');
    for(int i = 0; i < splittedStrings.size() ; i++)
        std::cout<<splittedStrings[i]<<std::endl;
    return 0;
}

Output :
You
are
studying
from
BtechGeeks

Splitting a string by another string as delimiter :

C++ split string by character: Like in above we splitted using character delimiter here we will split using another string. So, for this we have to use another std::string as delimiter.

#include <string>
#include <vector>
#include <sstream>
#include <iostream>


//By using delimeter as an another string

std::vector<std::string> split(std::string stringToBeSplitted, std::string delimeter)
{
    std::vector<std::string> splittedString;
    int startIndex = 0;
    int  endIndex = 0;
    while( (endIndex = stringToBeSplitted.find(delimeter, startIndex)) < stringToBeSplitted.size() )
    {
        std::string val = stringToBeSplitted.substr(startIndex, endIndex - startIndex);
        splittedString.push_back(val);
        startIndex = endIndex + delimeter.size();
    }
    if(startIndex < stringToBeSplitted.size())
    {
        std::string val = stringToBeSplitted.substr(startIndex);
        splittedString.push_back(val);
    }
    return splittedString;
}
int main()
{
    std::string str = "You are studying from BtechGeeks";
    // Spliting the string by an another std::string
    std::vector<std::string> splittedStrings_2 = split(str, "studying");
    for(int i = 0; i < splittedStrings_2.size() ; i++)
        std::cout<<splittedStrings_2[i]<<std::endl;    
    return 0;
}

Output :
You are 
from BtechGeeks

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