C++ usage in embedded systems

Question

What features of C++ should be avoided in embedded systems?

Please classify the answer by reason such as:

• memory usage
• code size
• speed<

Answer 1

If you are using a development environment targeted toward embedded development or a particular embedded system, it should have limited some of the options for you already. Depending on the resource capabilities of your target, it will turn off some of the aforementioned items (RTTI, exceptions, etc.). This is the easier route to go, rather than keeping in mind what will increase size or memory requirements (although, you should get to know that mentally anyway).