[srean]

You can of course inline C++ snippets in Felix code as you mentioned, but that is not the only way to talk to C++. Felix allows you to create a Felix object from a C++ object (and the reverse) with minimal glue. Take a look here http://felix-lang.org/share/src/web/tut/cbind_index.fdoc.

With this two styles the boundary between Felix and C++ can be very fluid. It does not incur the typical efficiency hit of a dynamically loaded FFI, although it does allow dynamically loading shared libraries too.

If you dont want to use C++ libraries and classes from Felix, you dont need to know C++ to use Felix.