dirty convinient std::vector inserter

vector_inserter.hpp

#pragma once
#include <vector>
// inspiration: boost/assign/std/vector.hpp

template<class VT> struct vector_inserter {
    VT &vec;
    template<class Arg> auto &operator,(Arg &&v) {
        vec.emplace_back(std::forward<Arg>(v));
        return *this;
    }
};

template<class T, class Alloc, class Arg>
auto operator+=(std::vector<T, Alloc> &vec, Arg &&v) {
    vec.emplace_back(std::forward<Arg>(v));
    return vector_inserter<std::vector<T, Alloc>>{vec};
}

ztest.cpp

#include <iostream>
#include <iterator>
#include "vector_inserter.hpp"

int main() {
    std::vector<int> v;
    v += 1,2,5,8,1,9,11,'a';
    std::copy(v.begin(), v.end(), std::ostream_iterator<decltype(v)::value_type>(std::cout, " "));
    std::cout << std::endl;
}