Richard M Reese

Understanding and Using C Pointers (eBook, ePUB)

Core Techniques for Memory Management

• Format: ePub

Produktbeschreibung

Improve your programming through a solid understanding of C pointers and memory management. With this practical book, youll learn how pointers provide the mechanism to dynamically manipulate memory, enhance support for data structures, and enable access to hardware. Author Richard Reese shows you how to use pointers with arrays, strings, structures, and functions, using memory models throughout the book.Difficult to master, pointers provide C with much flexibility and poweryet few resources are dedicated to this data type. This comprehensive book has the information you need, whether youre a beginner or an experienced C or C++ programmer or developer.Get an introduction to pointers, including the declaration of different pointer typesLearn about dynamic memory allocation, de-allocation, and alternative memory management techniquesUse techniques for passing or returning data to and from functionsUnderstand the fundamental aspects of arrays as they relate to pointersExplore the basics of strings and how pointers are used to support themExamine why pointers can be the source of security problems, such as buffer overflowLearn several pointer techniques, such as the use of opaque pointers, bounded pointers and, the restrict keyword

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Produktdetails

• Verlag: O'Reilly Media
• Seitenzahl: 226
• Erscheinungstermin: 1. Mai 2013
• Englisch
• ISBN-13: 9781449344559
• Artikelnr.: 38156843

Autorenporträt

Richard Reese has worked in the industry and academics for the past 29 years. For 10 years he provided software development support at Lockheed and at one point developed a C based network application. He was a contract instructor providing software training to industry for 5 years. Richard is currently an Associate Professor at Tarleton State University in Stephenville Texas.

Inhaltsangabe

Preface
Why This Book Is Different
The Approach
Audience
Organization
Summary
Conventions Used in This Book
Using Code Examples
Safari® Books Online
How to Contact Us
Chapter 1: Introduction
1.1 Pointers and Memory
1.2 Pointer Size and Types
1.3 Pointer Operators
1.4 Common Uses of Pointers
1.5 Summary
Chapter 2: Dynamic Memory Management in C
2.1 Dynamic Memory Allocation
2.2 Dynamic Memory Allocation Functions
2.3 Deallocating Memory Using the free Function
2.4 Dangling Pointers
2.5 Dynamic Memory Allocation Technologies
2.6 Summary
Chapter 3: Pointers and Functions
3.1 Program Stack and Heap
3.2 Passing and Returning by Pointer
3.3 Function Pointers
3.4 Summary
Chapter 4: Pointers and Arrays
4.1 Quick Review of Arrays
4.2 Pointer Notation and Arrays
4.3 Using malloc to Create a One-Dimensional Array
4.4 Using the realloc Function to Resize an Array
4.5 Passing a One-Dimensional Array
4.6 Using a One-Dimensional Array of Pointers
4.7 Pointers and Multidimensional Arrays
4.8 Passing a Multidimensional Array
4.9 Dynamically Allocating a Two-Dimensional Array
4.10 Jagged Arrays and Pointers
4.11 Summary
Chapter 5: Pointers and Strings
5.1 String Fundamentals
5.2 Standard String Operations
5.3 Passing Strings
5.4 Returning Strings
5.5 Function Pointers and Strings
5.6 Summary
Chapter 6: Pointers and Structures
6.1 Introduction
6.2 Structure Deallocation Issues
6.3 Avoiding malloc/free Overhead
6.4 Using Pointers to Support Data Structures
Chapter 7: Security Issues and the Improper Use of Pointers
7.1 Pointer Declaration and Initialization
7.2 Pointer Usage Issues
7.3 Memory Deallocation Issues
7.4 Using Static Analysis Tools
7.5 Summary
Chapter 8: Odds and Ends
8.1 Casting Pointers
8.2 Aliasing, Strict Aliasing, and the restrict Keyword
8.3 Threads and Pointers
8.4 Object-Oriented Techniques
8.5 Summary
Colophon