#include <itertools.hpp>

#include <vector>

#include <tuple>

#include <array>

#include <iostream>

#include <string>

using namespace iter;

template <typename T>

std::ostream & operator<<(std::ostream & o, const boost::optional<T> & opt) {

if (opt) {

std::cout << *opt;

}

else {

std::cout << "Object disengaged of type " << typeid(T).name();

}

return o;

}

int main() {

{

std::vector<int> vec1{1,2,3,4,5,6};

std::vector<int> vec2{1,2,3,4,5};

std::vector<std::string> strvec

{"his","name","was","robert","paulson","his","name","was","robert","paulson"};

for (auto t : zip_longest(chain(vec1,vec2),strvec)) {

std::cout << std::get<0>(t) << " "

<< std::get<1>(t) << std::endl;

}

}

std::cout << std::endl;

/*

{

std::vector<int> vec1{1,2,3,4,5,6};

std::vector<int> vec2{7,8,9,10};

std::vector<std::string> strvec

{"We're","done","when","I","say","we're","done"};

for (auto t : zip(strvec,chain(slice(vec1,2,6),slice(vec2,1,4)))) {

std::cout << std::get<0>(t) << " "

<< std::get<1>(t) << std::endl;

}

}

*/

std::cout << std::endl;

{

std::vector<int> vec1{1,2,3,4,5,6};

std::vector<int> vec2{7,8,9,10};

for (auto s : sliding_window(chain(vec1,vec2),4)) {

for (auto i : s) std::cout << i << " ";

std::cout<<std::endl;

}

}

std::cout << std::endl;

{

std::vector<int> vec1{1,2,3,4,5,6};

std::vector<int> vec2{7,8,9,10};

for (auto s : grouper(chain(vec1,vec2),3)) {

for (auto i : s) std::cout << i << " ";

std::cout<<std::endl;

}

}

return 0;

}