How is the C programming language not object-oriented?

Answer 1

A "pure object oriented language" is one where every thing in it is treated on a consistent basis as on object, including elementary data types such as an integer. Since C++ treats elementary objects differently than classes, it does not meet the formal definition as a "pure ...".

Answer 2

C++ inherits from C and therefore inherits primitive data types such as int and char, which are strictly non-object oriented. Although C++ does allow some object-oriented semantics when constructing primitives, this is merely sugar-coating. Besides construction, primitive data types have absolutely no member methods associated with them and behave exactly as they did in C.

Answer 3

Object-oriented programming is possible in any language, but an object-oriented language is designed to support the paradigm. C is a procedural language, meaning that it defines several global procedures (called functions in the language's own terminology) which may invoke each other, and structs - named groups of dissimilarly typed variables. C has no specific support for object-oriented programming.

C++ is an object-oriented language based on C. In addition to C's procedural features, C++ provides classes, which are capable of containing properties (as C structs are) as well as methods (procedures declared as members of a class). An object is an instance of a class and works like a struct instance, except that it also has its class's methods attached to it. When an object's method is called, the object is available within the method as the 'this' keyword, which need not be declared.

Unlike C, C++ is designed around the idea of an "object" and is thus object-oriented.

Answer 4

C language is not a program, and it isn't an object-oriented language either.