idioms io - RawIron/learn-cpp GitHub Wiki

// the first time it reads len values from cin
// the second call reads 0 values ..
// somehow the first call empties the content of cin
vector<int> read_n() {
    vector<int> scores{};
    const int len = 5;
    copy_if(
        istream_iterator<int>(cin),
        istream_iterator<int>(),
        back_inserter(scores),
        [count=len] (int) mutable { return count && count--; }
    );
}

#include <iostream>
#include <sstream>

std::string input = "abc,def,ghi";
std::istringstream ss(input);
std::string token;

while(std::getline(ss, token, ',')) {
    std::cout << token << '\n';
}

#include <string>
#include <sstream>
#include <iterator>

int main() {
    using namespace std;
    string sentence = "And I feel fine...";

    istringstream iss(sentence);
    vector<string> tokens{istream_iterator<string>{iss},
                          istream_iterator<string>{}};
}