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通过对C指针和内存管理的扎实理解来提高你的编程技能。在这本贴合实际的书籍里，你将了解到指针是如何提供了相应的机制来动态操纵内存，增强对数据结构的支持，允许直接访问硬件。作者RichardReese通过《学习使用C指针（影印版）》中的内存模型为你展示了如何在数组、字符串、结构和函数中使用指针。虽然难以掌握，但是指针为c语言提供了灵活性和强大能力，不过很少有资料来讲述这种数据类型。无论你是初学者还是有经验的C或者c++编程人员和开发者，这本详尽的书籍都有着你所需要的知识。

Preface

1.Introduction

Pointers and Memory

Why You Should Become Proficient with Pointers

Declaring Pointers

HOW to Read a Declaration

Address of operator

Displaying Pointer Values

Dereferencing a Pointer Using the Indirection Operator

Pointers to Functions

The Concept ofNull

Pointer Size and Types

Memory Models

Predefined PointerRelated Types

Pointer operators

Pointer Arithmetic

Comparing Pointers

Common Uses of Pointers

Multiple Levels of Indirection

Constants and Pointers

Summary2.DynamicMemoryManagementinC

Dynamic Memory Allocation

Memory Leaks

Dynamic Memory Allocation Functions

Using the malloc Function

Using the calloc Function

……

3.Pointers and Functions

4.Pointers and Arrays

5.Pointers and Strings

6.Pointers and Structures

7.Sechrity Lssues and the lmproper Use of pointers

8.Odds and Ends

lndex

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.

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The ASCII NUL is defined as a byte containing all zeros. However, this is not the same as a null pointer. A string in C is represented as a sequence of characters terminated by a zero value. The null string is an empty string and does not contain any characters. Finally, the null statement consists of a statement with a single semicolon.

编译器总是假定char指针是任意对象的潜在别名，所以，大部分情况下可以安全地使用。不过，把其他数据类型的指针转换成char指针，再把char指针转换成其他数据类型的指针，则会导致未定义的行为，应该避免这么做。

The address used by a program is a virtual address. The operating system maps the virtual address to a real physical memory address when needed.

When NULL is assigned to a pointer, it means the pointer does not point to anything.

书籍介绍

通过对C指针和内存管理的扎实理解来提高你的编程技能。在这本贴合实际的书籍里，你将了解到指针是如何提供了相应的机制来动态操纵内存，增强对数据结构的支持，允许直接访问硬件。作者RichardReese通过《学习使用C指针（影印版）》中的内存模型为你展示了如何在数组、字符串、结构和函数中使用指针。虽然难以掌握，但是指针为c语言提供了灵活性和强大能力，不过很少有资料来讲述这种数据类型。无论你是初学者还是有经验的C或者c++编程人员和开发者，这本详尽的书籍都有着你所需要的知识。