Why? I write a whole lot of pure C, on microcontrollers (usually with an RTOS) and really cut-down embedded Linux systems that don&#x27;t have a C++ library.<p>Why wouldn&#x27;t you use classes if you have access to C++ though? A lot of the time I write C, I spend a lot of time and write a lot of code that would be far easier with classes and&#x2F;or access to the STL.