Put simply, C++ is an extended C meant to improve safety, give the programmer more options, simplify higher level programming, and offer a better approach to large scale programming. C++ is also a larger language with more features and complexity than C, but C++ can improve productivity with its greater amount of features. A list of features that C++ supports which C does not includes:

• Classes
  
• Member functions
  
• Constructors and destructors
  
• Derived classes
  
• Virtual functions
  
• Abstract classes
  
• Access control (public, private, protected)
  
• friend functions
  
• Pointers to members
  
• static members
  
• mutable members
  
• Operator overloading
  
• References
  
• Templates
  
• Inline functions
  
• Default arguments
  
• Function overloading
  
• Namespaces
  
• Exception handling
  
• Run-time type identification
  
• // comments
  
• True const
  
• Declarations as statements
  
• Automatically typedef'd struct tags
  
• Type safe linkage
  
• new and delete
  
• bool keyword
  
• Safer and more robust casting