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Файл:C++ For Dummies (2004) [eng].pdf
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- •Table of Contents
- •Introduction
- •What Is C++?
- •Conventions Used in This Book
- •How This Book Is Organized
- •Part I: Introduction to C++ Programming
- •Part III: Introduction to Classes
- •Part IV: Inheritance
- •Part V: Optional Features
- •Part VI: The Part of Tens
- •Icons Used in This Book
- •Where to Go from Here
- •Grasping C++ Concepts
- •How do I program?
- •Installing Dev-C++
- •Setting the options
- •Creating Your First C++ Program
- •Entering the C++ code
- •Building your program
- •Executing Your Program
- •Dev-C++ is not Windows
- •Dev-C++ help
- •Reviewing the Annotated Program
- •Examining the framework for all C++ programs
- •Clarifying source code with comments
- •Basing programs on C++ statements
- •Writing declarations
- •Generating output
- •Calculating Expressions
- •Storing the results of expression
- •Declaring Variables
- •Declaring Different Types of Variables
- •Reviewing the limitations of integers in C++
- •Solving the truncation problem
- •Looking at the limits of floating-point numbers
- •Declaring Variable Types
- •Types of constants
- •Special characters
- •Are These Calculations Really Logical?
- •Mixed Mode Expressions
- •Performing Simple Binary Arithmetic
- •Decomposing Expressions
- •Determining the Order of Operations
- •Performing Unary Operations
- •Using Assignment Operators
- •Why Mess with Logical Operations?
- •Using the Simple Logical Operators
- •Storing logical values
- •Using logical int variables
- •Be careful performing logical operations on floating-point variables
- •Expressing Binary Numbers
- •The decimal number system
- •Other number systems
- •The binary number system
- •Performing Bitwise Logical Operations
- •The single bit operators
- •Using the bitwise operators
- •A simple test
- •Do something logical with logical calculations
- •Controlling Program Flow with the Branch Commands
- •Executing Loops in a Program
- •Looping while a condition is true
- •Using the for loop
- •Avoiding the dreaded infinite loop
- •Applying special loop controls
- •Nesting Control Commands
- •Switching to a Different Subject?
- •Writing and Using a Function
- •Divide and conquer
- •Understanding the Details of Functions
- •Understanding simple functions
- •Understanding functions with arguments
- •Overloading Function Names
- •Defining Function Prototypes
- •Variable Storage Types
- •Including Include Files
- •Considering the Need for Arrays
- •Using an array
- •Initializing an array
- •Accessing too far into an array
- •Using arrays
- •Defining and using arrays of arrays
- •Using Arrays of Characters
- •Creating an array of characters
- •Creating a string of characters
- •Manipulating Strings with Character
- •String-ing Along Variables
- •Variable Size
- •Address Operators
- •Using Pointer Variables
- •Comparing pointers and houses
- •Using different types of pointers
- •Passing Pointers to Functions
- •Passing by value
- •Passing pointer values
- •Passing by reference
- •Limiting scope
- •Examining the scope problem
- •Providing a solution using the heap
- •Defining Operations on Pointer Variables
- •Re-examining arrays in light of pointer variables
- •Applying operators to the address of an array
- •Expanding pointer operations to a string
- •Justifying pointer-based string manipulation
- •Applying operators to pointer types other than char
- •Contrasting a pointer with an array
- •Declaring and Using Arrays of Pointers
- •Utilizing arrays of character strings
- •Identifying Types of Errors
- •Choosing the WRITE Technique for the Problem
- •Catching bug #1
- •Catching bug #2
- •Calling for the Debugger
- •Defining the debugger
- •Finding commonalities among us
- •Running a test program
- •Single-stepping through a program
- •Abstracting Microwave Ovens
- •Preparing functional nachos
- •Preparing object-oriented nachos
- •Classifying Microwave Ovens
- •Why Classify?
- •Introducing the Class
- •The Format of a Class
- •Accessing the Members of a Class
- •Activating Our Objects
- •Simulating real-world objects
- •Why bother with member functions?
- •Adding a Member Function
- •Creating a member function
- •Naming class members
- •Calling a Member Function
- •Accessing a member function
- •Accessing other members from a member function
- •Defining a Member Function in the Class
- •Keeping a Member Function After Class
- •Overloading Member Functions
- •Defining Arrays of and Pointers to Simple Things
- •Declaring Arrays of Objects
- •Declaring Pointers to Objects
- •Dereferencing an object pointer
- •Pointing toward arrow pointers
- •Passing Objects to Functions
- •Calling a function with an object value
- •Calling a function with an object pointer
- •Calling a function by using the reference operator
- •Returning to the Heap
- •Comparing Pointers to References
- •Linking Up with Linked Lists
- •Performing other operations on a linked list
- •Hooking up with a LinkedListData program
- •A Ray of Hope: A List of Containers Linked to the C++ Library
- •Protecting Members
- •Why you need protected members
- •Discovering how protected members work
- •Protecting the internal state of the class
- •Using a class with a limited interface
- •Creating Objects
- •Using Constructors
- •Why you need constructors
- •Making constructors work
- •Dissecting a Destructor
- •Why you need the destructor
- •Working with destructors
- •Outfitting Constructors with Arguments
- •Justifying constructors
- •Using a constructor
- •Defaulting Default Constructors
- •Constructing Class Members
- •Constructing a complex data member
- •Constructing a constant data member
- •Constructing the Order of Construction
- •Local objects construct in order
- •Static objects construct only once
- •Global objects construct in no particular order
- •Members construct in the order in which they are declared
- •Destructors destruct in the reverse order of the constructors
- •Copying an Object
- •Why you need the copy constructor
- •Using the copy constructor
- •The Automatic Copy Constructor
- •Creating Shallow Copies versus Deep Copies
- •Avoiding temporaries, permanently
- •Defining a Static Member
- •Why you need static members
- •Using static members
- •Referencing static data members
- •Uses for static data members
- •Declaring Static Member Functions
- •What Is This About, Anyway?
- •Do I Need My Inheritance?
- •How Does a Class Inherit?
- •Using a subclass
- •Constructing a subclass
- •Destructing a subclass
- •Having a HAS_A Relationship
- •Why You Need Polymorphism
- •How Polymorphism Works
- •When Is a Virtual Function Not?
- •Considering Virtual Considerations
- •Factoring
- •Implementing Abstract Classes
- •Describing the abstract class concept
- •Making an honest class out of an abstract class
- •Passing abstract classes
- •Factoring C++ Source Code
- •Defining a namespace
- •Implementing Student
- •Implementing an application
- •Project file
- •Creating a project file under Dev-C++
- •Comparing Operators with Functions
- •Inserting a New Operator
- •Overloading the Assignment Operator
- •Protecting the Escape Hatch
- •How Stream I/O Works
- •The fstream Subclasses
- •Reading Directly from a Stream
- •Using the strstream Subclasses
- •Manipulating Manipulators
- •Justifying a New Error Mechanism?
- •Examining the Exception Mechanism
- •What Kinds of Things Can I Throw?
- •Adding Virtual Inheritance
- •Voicing a Contrary Opinion
- •Generalizing a Function into a Template
- •Template Classes
- •Do I Really Need Template Classes?
- •Tips for Using Templates
- •The string Container
- •The list Containers
- •Iterators
- •Using Maps
- •Enabling All Warnings and Error Messages
- •Insisting on Clean Compiles
- •Limiting the Visibility
- •Avoid Overloading Operators
- •Heap Handling
- •Using Exceptions to Handle Errors
- •Avoiding Multiple Inheritance
- •Customize Editor Settings to Your Taste
- •Highlight Matching Braces/Parentheses
- •Enable Exception Handling
- •Include Debugging Information (Sometimes)
- •Create a Project File
- •Customize the Help Menu
- •Reset Breakpoints after Editing the File
- •Avoid Illegal Filenames
- •Include #include Files in Your Project
- •Executing the Profiler
- •System Requirements
- •Using the CD with Microsoft Windows
- •Using the CD with Linux
- •Development tools
- •Program source code
- •Index
200 Part III: Introduction to Classes
A Ray of Hope: A List of Containers Linked to the C++ Library
I believe everyone should walk before they run, should figure out how to per form arithmetic in their head before using a calculator, and should write a linked list program before using a list class written by someone else. That being said, in Chapter 27, I describe other list classes provided by the C++ environment. These classes are known more generically as container classes because they contain other objects — array and linked list are just two exam ples of container classes.
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