一、历史
http://blog.csdn.net/initrd/article/details/1526796
二、关键字
1)关于typedef的用法总结
http://www.cnblogs.com/csyisong/archive/2009/01/09/1372363.html
2)what-does-dereferencing-a-pointer-mean
http://stackoverflow.com/questions/4955198/what-does-dereferencing-a-pointer-mean
二、Gnu C与Ansi C
http://blog.chinaunix.net/uid-23670869-id-2391619.html http://blog.csdn.net/ssdsafsdsd/article/details/8236124
三、C99
http://blog.sina.com.cn/s/blog_4ce1e0e30100j3ui.html
四、Gcc核心扩展
http://blog.csdn.net/mydo/article/details/3738336