21世纪C语言

Preface

Part I．The Environment

1．SetYourself Up for Easy Compilation

Use a Package Manager

Compiling C with Windows

POSIX for Windows

Compiling C with POSIX

Compiling C Without POSIX

Which Way to the Library?

A Few of My Favorite Flags

Paths

Runtime Linking

Using Makefiles

Setting Variables

The Rules

Using Libraries from Source

Using Libraries from Source（Even if Your Sysadmin Doesn’t Want You To）

Compiling C Programs via Here Document

Include Header Files from the Command Line

The Unified Header

Here Documents

Compiling from stdin

2．Debug，Test，Document

Using a Debugger

GDB Variables

Print Your Structures

Using Valgrind to Check for Errors

Unit Testing

Using a Program as a Library

Coverage

Interweaving Documentation

Doxygen

Literate Code with CW’EB

Error Checking

What Is the User’s Involvement in the Error?

The Context in Which the User Is Working

How Should the Error Indication Be Returned?

3．PackagingYourProject

The Shell

Replacing Shell Commands with Their Outputs

Use the Shell’s for Loops to Operate on a Set of Files

TestforFiles

fc

Makefiles VS．Shell Scripts

Packaging Your Code with Autotools

An Autotools Demo

Describing the Makefile with makefile．am

The configure Script

4．VersionControI

Changes via diff

Git’s Objects

The Stash

Trees and Their Branches

Merging

The Rebase

Remote Repositories

5．PlayingNicewithOthers

The Process

Writing to Be Read by Nonnatives

The Wrapper Function

Smuggling Data Structures Across the Border

Linking

Python Host

Compiling and Linking

The Conditional Subdirectory for Automake

Distutils Backed with Autotools

Part II．The Language

6．YOurPaIthePointer

Automatic，Static，and Manual Memory

Persistent State Variables

Pointers Without malloc

Structures Get Copied，Arrays Get Aliased

malloc and Memory—Twiddling

The Fault Is in Our Stars

All the Pointer Arithmetic You Need to Know

7．CSyntaxYouCanIgnore

Don’t Bother Explicitly Returning from main

Let Declarations Flow

Set Array Size at Runtime

Cast Less

Enums and Strings

Labels，gotos，switches，and breaks

gotO Considered

switch

Deprecate Float

8．Obstaclesand Oppounity

Cultivate Robust and Flourishing Macros

Preprocessor Tricks

Linkage with static and extem

Declare Externally Linked Elements Only in Header Files

The const Keyword

Noun—Adjective Form

Tension

Depth

The char const Issue

9．Text

Making String Handling Less Painful with asprintf

Security

Constant Strings

Extending Strings with asprintf

APean to strtok

Unicode

The Encoding for C Code

Unicode Libraries

The Sample Code

10．Better Structures

Compound Literals

Initialization via Compound Literals

Variadic Macros

Safely Terminated Lists

Foreach

Vectorize a Function

Designated Initializers

Initialize Arrays and Structs with Zeros

Typedefs Save the Day

A StyleNote

Return Multiple Items from a Function

Reporting Errors

Flexible Function Inputs

Declare Your Function．as printf-Style

Optional and Named Arguments

Polishing a Dull Function

The Void Pointer and the Structures It Points To

Functions with Generic Inputs

Generic Structures

11．Object-Oriented Programmingin C

What You Don’t Get（and Why You Won’t Miss It）

Scope

Overloaded with Operator Overloading

Extending Structures and Dictionaries

Extending a Structure

Implementing a Dictionary

Base Your Code on Pointers to Objects

Functions in Your Structs

Count References，

Example：A Substring Object

An Agent—Based Model of Group Formation

12．Libraries

GLib

POS．IX

Using mmap for Gigantic Data Sets

Easy Threading with Pthreads

The GNU Scientific Library

SQLite

The Queries

libxml and cURL

Epilogue

Glossary

Bibliography

Index

抛弃你对于C语言的那些陈旧观念吧。你应该重新学习这门编程语言，它早已改变了过去的面貌。在《21世纪C语言（影印版）》中，你将了解到在其他C语言书籍中所缺失的那些最新技术。C语言不仅仅是现代编程语言的基石，它本身也是一门现代语言，尤其适合于编写高效的、尖端的应用程序。你需要放弃那些只有在大型机时代才有意义的旧习，转而选择相应的工具来使用这门改进的极其简单的语言。无论目前你是哪门编程语言的拥护者，你都不得不承认C语言也很出色。