C++ POOL — DAY 14 AFTERNOON

Handling failures other than with return codes — on a Martian rover.

In C, a failing function returns an error code the caller is free to ignore. Exceptions invert the logic: the error travels up on its own to whoever knows how to handle it, and cannot be passed over in silence. The support is a space rover whose every vital component can break down.

A custom exception hierarchy and rover components (engine, oxygenator, water reclaimer, atmosphere regulator), with unit tests.