How can encapsulation be enforced in c

Key Terms abstraction A technique for arranging complexity of computer systems so that functionality may be separated from specific implementation details.

See encapsulation. Previous: Objects and Classes. Next: Inheritance and Polymorphism. To make parts of a class public i. All variables or functions defined after the public specifier are accessible by all other functions in your program. Making one class a friend of another exposes the implementation details and reduces encapsulation. The ideal is to keep as many of the details of each class hidden from all other classes as possible.

Above class adds numbers together, and returns the sum. The public members addNum and getTotal are the interfaces to the outside world and a user needs to know them to use the class. Like Article. Encapsulation obj;. Recommended Articles. Article Contributed By :. Easy Normal Medium Hard Expert. Writing code in comment? Please use ide. Load Comments. What's New. Although we can make use of this property in C by implementing encapsulation.

Encapsulation also provides secure code which can be better understood by an example provided in the below section. This promotes adaptability with changing requirements as whichever code requires a change can be modified in a separate file without changes anything in the main program. This will give simple and error-free code up to some extent.

Data in C language is public by default. This can be achieved by having a separate header and source C files. In the below example: There are three files. This file acts as a link between the data scattered over multiple files.

When this is executed then function call is made to functions in which are defined in other C files along with structures. Malloc function allocates the memory. Encapsulation is the leading step towards object-oriented programming. This article gives information about Encapsulation in C.