Get index in C++11 foreach loop

Question

Is there a convenient way to get the index of the current container entry in a C++11 foreach loop, like enumerate in python:

for idx, obj in enu         


        

Answer 1

If you have access to Boost it's range adaptors can be used like this:

using namespace boost::adaptors;

for (auto const& elem : container | indexed(0))
{
    std::cout << elem.index() << " - " << elem.value() << '\n';
}

Source (where there are also other examples)