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

It's an interesting read for the Rationale on the early Embedded C++ standrard

See this article on EC++ as well.

The Embedded C++ std was a proper subset of C++, i.e. it has no additions. The following language features were removed:

• Multiple inheritance
• Virtual base classes
• Run-time type information (typeid)
• New style casts (static_cast, dynamic_cast, reinterpret_cast and const_cast)
• The mutable type qualifier
• Namespaces
• Exceptions
• Templates

It's noted on the wiki page that Bjarne Stroustrup says (of the EC++ std), "To the best of my knowledge EC++ is dead (2004), and if it isn't it ought to be." Stroustrup goes on to recommend the document referenced by Prakash's answer.