[rosconsole] C++ stream operators for containers?

[dirk-thomas]

From @bmagyar on May 15, 2018 22:2

I've been using a header file that I carry with me from project to project for a while now.
The main contribution of it is this template that allows to print vectors without having to write the same boilerplate over and over again.

template <typename T>
std::ostream& operator<< (std::ostream& stream, const std::vector<T>& list)
{
  stream << "[";
  for(const T& elem : list)
    stream << elem << ", ";
  if(not list.empty())
    stream.seekp(-2, std::ios_base::end); // remove last ", "
  stream << "]";
  return stream;
}

Is something like this welcome in rosconsole or you are trying to offer the same functionality with printf-style logging and other languages?

Copied from original issue: ros/ros_comm#1400