Can I easily iterate over the values of a map using a range-based for loop?

Question

Is it possible to iterate over all of the values in a std::map using just a "foreach"?

This is my current code:

std::map

        

Answer 1

The magic lies with Boost.Range's map_values adaptor:

#include 

for(auto&& i : foo | boost::adaptors::map_values){
  i->bar();
}

And it's officially called a "range-based for loop", not a "foreach loop". :)