Facts of C Programming Language
Facts of C Programming Language
C的一些掌故
(英文原文:http://www.programmingfacts.com/2009/12/01/facts-of-c-programming-language/)
C programming language was developed in 1972 by Dennis Ritchie and Brian Kernighan at the Bell Telephone Laboratories (AT&T Bell Laboratories) for use with the Unix operating system for programming computer operating systems. C is a procedural oriented programming language.
C语言是在1972年由贝尔实验室的Dennis Ritchie和Brian Kernighan为开发操作系统，为Unix提供编程语言而实现的。它是面向过程的编程语言。
C was designed as a minimalist language to be used in writing operating systems for minicomputers, which had very limited memories compared with the mainframe computers of the period
C最初主要是用来为微机编写操作系统，因而被设计的“小巧”而又富于抽象力，因为和当时的大型机相比，微机的内存非常有限。
Also C was designed for implementing system software. Although C was designed for implementing system software,it is also widely used for developing portable application software.
当然，C也被设计成适于编写系统软件。虽然C是系统级编程语言，但在可移植应用软件开发领域，到处都可以看到它的身影。
The initial development of C was devised during 1969–73, alongside the early development of the UNIX operating system. It was based on CPL (Combined Programming Language), which had been first condensed into the B programming language and later on it was called as computer programming language by Ken Thompson, an American computer scientist and a colleague of Ritchie. Ritchie rewrote and restored features from BCPL to create C-Programming Language, rewrite the development of the Unix operating system in C language.
C的最初开发与实现是和UNIX系统一起进行的，时间是1969到1973年。C语言基于CPL（混合编程语言，译注：Combined Programming Language是早期的一种计算机编程语言，由剑桥大学数学实验室和伦敦大学计算机研究室联合开发的）,人们将CPL语言的特性融入到B语言中（译注：即后来的BCLP语言），美国计算机科学家Ken Thompson后来称B为计算机编程语言；Ken�
相关文档：
C语言所有复杂的指针声明，都是由各种声明嵌套构成的。如何解读复杂指针声明呢？右左法则是一个既著名又常用的方法。不过，右左法则其实并不是C标准里面的内容，它是从C标准的声明规定中归纳出来的方法。C标准的声明规则，是用来解决如何创建声明的，而右左法则是用来解决如何辩识一个声明的，两者可以说是相反的。右左法则 ......
（1）zImage自解压
本文以流行的Samsung公司的S3C2410，mini2440平台和linux-2.6.29为例，介绍如何在ZIX嵌入式开发环境下探索linux内核启动过程。
Linux内核启动一般由外部的bootloader引导，也可以在内核头部嵌入一个loader，实际的应用中这两种方式都会经常遇到。所以要了解内核启动最开始的过程，必须对bootloader如何 ......
在ANSI C中，对文件的操作分为两种方式，即流式文件操作和I/O文件操作，下面就分别介绍之。
一、流式文件操作
这种方式的文件操作有一个重要的结构FILE，FILE在stdio.h中定义如下：
typedef struct {
int level; /* fill/empty level of buffer */
unsigned flags; /* File status flags */
char fd; /* File des ......
[摘要]可扩展标志语言（简称XML）在实现信息标准化、信息的交流与共享上有其独特的技术优势，因此它受到了广泛的重视。全文首先提出了基于XML的三层Client/Server模型；然后对其从数据获取、传输至显示以及外部处理的应用进行分析；接着以图书资料管理系统为例，说明了其具体的实现；最后对基于XML的三层C/S模型在信息标准� ......
