Replace BOOST_FOREACH with "pure" C++11 alternative?

for (auto & i : map)
{
    std::tie(k,v) = i;
    // your code here
}

This produces the same output as the Boost macro

for( auto const& k : map ) {
  std::cout << "k = " << k.first << " - " << k.second << std::endl;
}