How to use getline() and stringstream In C++

Q: How to use getline() and stringstream In C++

The strtok() function returns the next token separated by a delimiter in a string. The tokens are pushed into the vector until the null pointer is reached.

2. Using strtok() Function

4. Using find_first_not_of() with find() function

It works for single-character delimiters.

C++

// C++ Program for Conversion
// String To Vector using Delimiter
// Using getline() and stringstream
#include <bits/stdc++.h>
using namespace std;
 
vector<string> split(string str, char delimiter)
{
  // Using str in a string stream
    stringstream ss(str);
    vector<string> res;
    string token;
    while (getline(ss, token, delimiter)) {
        res.push_back(token);
    }
    return res;
}
 
int main()
{
    // Delimiter is " "
    string s = "w3wiki is a computer science portal";
    vector<string> res = split(s, ' ');
 
    for (int i = 0; i < res.size(); i++) {
        cout << res[i] << endl;
    }
    // Delimiter is *
    s = "w3wiki*is*a*computer*science*portal";
    res = split(s, '*');
 
    for (int i = 0; i < res.size(); i++) {
        cout << res[i] << endl;
    }
 
    return 0;
}

Output

w3wiki
is
a
computer
science
portal
w3wiki
is
a
computer
science
portal

C++ String to Vector Using Delimiter

Delimiters are used as separators between the characters or words in a string so that different results can get separated by the delimiter. In this article let us see the different ways in which a string with delimiters can be converted to a vector of words after getting separated by delimiters.

Example: