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

Question

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?

You can create your own iterator which wraps around std::getline(in >> std::ws, part, ';'). — David G
– David G, Commented Jan 18, 2014 at 18:20
Actually, the answer you took your code from is right above (when ordered by votes) an answer that splits it with any delimiter. — Qaz
– Qaz, Commented Jan 18, 2014 at 18:45
You can find different solutions and explanations here: cplusplus.com/faq/sequences/strings/split — Tob
– Tob, Commented Jan 18, 2014 at 20:12

2 revs · Accepted Answer · 2017-05-23 11:57:51Z

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", ':');

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