CODEWITHSUNDEEP
c++string
Victor
Victor

Reputation: 14593

Split a string by a one-char delimiter in C++

I have seen some very popular questions here, on StackOverflow about splitting a string in C++, but every time, they needed to split that string by the SPACE delimiter. Instead, I want to split an std::string by the ; delimiter.

This code is taken from a n answer on StackOverflow, but I don't know how to update it for ;, instead of SPACE.

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

int main() {
    using namespace std;
    string sentence = "And I feel fine...";
    istringstream iss(sentence);
    copy(istream_iterator<string>(iss),
             istream_iterator<string>(),
             ostream_iterator<string>(cout, "\n"));
}

Can you help me?

Upvotes: 2

Views: 878

Answers (1)

NirMH
NirMH

Reputation: 4929

Here is one of the answers from Split a string in C++? that uses any delimiter.

I use this to split string by a delim. The first puts the results in a pre-constructed vector, the second returns a new vector.

std::vector<std::string> &split(const std::string &s, char delim, std::vector<std::string> &elems) {
    std::stringstream ss(s);
    std::string item;
    while (std::getline(ss, item, delim)) {
        elems.push_back(item);
    }
    return elems;
}


std::vector<std::string> split(const std::string &s, char delim) {
    std::vector<std::string> elems;
    split(s, delim, elems);
    return elems;
}

Note that this solution does not skip empty tokens, so the following will find 4 items, one of which is empty:

std::vector<std::string> x = split("one:two::three", ':');

Upvotes: 2

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