The main difference between C and C++ are:
1. C is a procedural language whereas C++ is a non-procedural language.
2. C gives importance to functions (methods) whereas C++ gives importance to both functions and data.
3. C allows the data to flow around the functions freely whereas C++ wraps up the data and functions together due to that datas were not allowed to flow around freely in C++. This is said to be Encapsulation in C++
Other differences ( actucally there is lot to mention......here are the two )
1. C allows struct union and enum types to be declared in function prototypes whereas C++ does not.
2. A struct union or enum declaration in C++ declares an implicit typedef while in C it does not