Question

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How to split a string in C++?

Best way to split a string in C++? The string can be assumed to be composed of words separated by ;

From our guide lines point of view C string functions are not allowed and also Boost is also not allowed to use because of security conecerns open source is not allowed.

The best solution I have right now is:

string str(“denmark;sweden;india;us”);

Above str should be stored in vector as strings. how can we achieve this?

Thanks for inputs.

Answer 1

I find std::getline() is often the simplest. The optional delimiter parameter means it’s not just for reading “lines”:

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

using namespace std;

int main() {
    vector<string> strings;
    istringstream f("denmark;sweden;india;us");
    string s;    
    while (getline(f, s, ';')) {
        cout << s << endl;
        strings.push_back(s);
    }
}