what is the features of C ++

Answer 1

Object oriented Programming language. This main advantage of C++is, it is object oriented programming language. It follow concept of oops like polymorphism, inheritance, encapsulation, abstraction.

Answer 2

Additionally, C++ has template metaprogramming, and it's syntax is much more relaxed. For example, in C, every time you declared a variable with a struct as the type, you had to prepend it with "struct". C++ you can, but don't need to. Lastly, C doesn't support references, just pointers.

PS: C++ is a multi paradigm language, not an object oriented one.