How C++ input/output library classes, functions , and streams are related to inheritance - Assignment Example

The stream class has a number of derived classes that give a broad overview of diverse kind of input and output, and also facilitates the developer/programmer to isolate them from the operating system and the underlying devices. In order to relate the input / output library classes, functions and streams with inheritance, first I would like to explain the inheritance in object-oriented programming, is a way of reusing the existing code of objects, a subtype can also be established from the existing code by the programmer; both the things can be done in C++.

The input / output library classes are example of inheritance as we can consider ‘stream’ as a superclass, whereas, the ‘istream’, ‘ostream’, ‘iostream’ etc. as derived classes. Furthermore, the objects/functions of these classes ‘cout’, ‘cin’, etc. can be called using ‘std’ namespace in the source code by the programmer. "Stream Classes" Please respond to the following: Analyze how stream classes inherit the operations , getline and fail from the istream and ostream classes.

Provide an example using C++ syntax as to how the iostream class inherits these operations and uses them in the maxval1.cpp program in your textbook. In C++, we can input and output the built-in data types using operations >> (the stream extraction operator) and >str’ and ‘getline(cin, str)’, the later can able take a full line including space, whereas, the cin operator can only take the input from the user till a space is entered. The fail operation is inherited from the ostream class, which returns either true if the operation has failed or false if the operation is successful.

In the program of maxval1.cpp, a string file name would be taken from the user, if there is an error in opening the file, the program would be terminated. There is a function of ‘read_data’ that takes ifstream parameter to read the file. The operator >> is used to read the file, the file would be read till the end and the maximum number would returned. Week 10 Discussion Find a simulation to compare and contrast with the Monte Carlo Simulation