implementation of a simple function which is used to split a character string by taking the delimiter

string_split.cpp

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

using namespace std;

vector<string> split (const string &s, const string &delimiter);

int main() {
  string myString = "We_try_to_split_string";

  vector<string> items = split(myString, "_");
  
  for (const auto &x : items)
    cout << x << endl;
}

vector<string> split (const string &s, const string &delimiter) {
    size_t pos_start = 0, pos_end, delim_len = delimiter.length();
    string item;
    vector<string> items;

    while ((pos_end = s.find (delimiter, pos_start)) != string::npos) {
        item = s.substr (pos_start, pos_end - pos_start);
        pos_start = pos_end + delim_len;
        items.push_back (item);
    }

    items.push_back (s.substr (pos_start));
    return items;
}