The C++ standard libraries provide an extensive set of input/output capabilities. This chapter discusses a range of capabilities sufficient for performing most common I/O operations and overviews the remaining capabilities. We discussed some of these features earlier in the text; now we provide a more complete treatment. Many of the I/O features that we will discuss are object oriented. This style of I/O makes use of other C++ features, such as references, function overloading and operator overloading.

C++ uses type-safe I/O. Each I/O operation is executed in a manner sensitive to the data type. If an I/O member function has been defined to handle a particular data type, then that member function is called to handle that data type. If there is no match between the type of the actual data and a function for handling that data type, the compiler generates an error. Thus, improper data cannot "sneak" through the system (as can occur in C, allowing for some subtle and bizarre errors).

Users can specify how to perform I/O for objects of user-defined types by overloading the stream insertion operator (<<) and the stream extraction operator (>>). This extensibility is one of C++'s most valuable features.

Software Engineering Observation 15.1

Use the C++-style I/O exclusively in C++ programs, even though C-style I/O is available to C++ programmers.

Error-Prevention Tip 15.1

C++ I/O is type safe.

Software Engineering Observation 15.2

C++ enables a common treatment of I/O for predefined types and user-defined types. This commonality facilitates software development and reuse.

Introduction to Computers, the Internet and World Wide Web

Introduction to C++ Programming

Introduction to Classes and Objects

Control Statements: Part 1

Control Statements: Part 2

Functions and an Introduction to Recursion

Arrays and Vectors

Pointers and Pointer-Based Strings

Classes: A Deeper Look, Part 1

Classes: A Deeper Look, Part 2

Operator Overloading; String and Array Objects

Object-Oriented Programming: Inheritance

Object-Oriented Programming: Polymorphism


Stream Input/Output

Exception Handling

File Processing

Class string and String Stream Processing

Web Programming

Searching and Sorting

Data Structures

Bits, Characters, C-Strings and structs

Standard Template Library (STL)

Other Topics

Appendix A. Operator Precedence and Associativity Chart

Appendix B. ASCII Character Set

Appendix C. Fundamental Types

Appendix D. Number Systems

Appendix E. C Legacy Code Topics

Appendix F. Preprocessor

Appendix G. ATM Case Study Code

Appendix H. UML 2: Additional Diagram Types

Appendix I. C++ Internet and Web Resources

Appendix J. Introduction to XHTML

Appendix K. XHTML Special Characters

Appendix L. Using the Visual Studio .NET Debugger

Appendix M. Using the GNU C++ Debugger


C++ How to Program
C++ How to Program (5th Edition)
ISBN: 0131857576
EAN: 2147483647
Year: 2004
Pages: 627 © 2008-2020.
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