Need to check it out. I guess you mean these:
- C++ Exceptions Reduce Firmware Code Size, ACCU [1]
- C++ Exceptions for Smaller Firmware, CppCon [2]
[1]: https://www.youtube.com/watch?v=BGmzMuSDt-Y
[2]: https://www.youtube.com/watch?v=bY2FlayomlE