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How to split a string in C++ using STL ?

What’s the most elegant way to split a string in C++? The string can be assumed to be composed of words separated by whitespace.

Here’s a way to extract tokens from an input string, relying only on Standard Library facilities. It’s an example of the power and elegance behind the design of the STL.

#include <iostream>
#include <string>
#include <sstream>
#include <algorithm>
#include <iterator>

int main() {
   using namespace std;
   string sentence = "Something in the way she moves...";
   istringstream iss(sentence);
   copy(istream_iterator<string>(iss),
            istream_iterator<string>(),
            ostream_iterator<string>(cout, "\n"));
}

Instead of copying the extracted tokens to an output stream, one could insert them into a container, using the same generic copy algorithm.

vector<string> tokens;
copy(istream_iterator<string>(iss),
        istream_iterator<string>(),
        back_inserter<vector<string> >(tokens));

Original link:http://stackoverflow.com/questions/236129

Author Question:
http://stackoverflow.com/users/1630

Author Anwser:
http://stackoverflow.com/users/30767

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