01 2013 档案

Linux第一讲（韩顺平）
摘要：软件公司迫切需要熟练掌握Linux程序员，Windows程序已饱和，linux开源而且免费。项目架构与linux上，安全并免费。 开源、免费的操作系统，稳定、安全、处理并行。用于开发：新浪、腾讯、搜狐、淘宝等门户网站等后台开发在Linux下开发的，Linux内核统一：redhat、fedora、红旗、suse、ubuntu等。 阅读全文
posted @ 2013-01-30 22:05 winko 阅读(786) 评论(0) 推荐(0)
2.3.7 Dividing by Powers of Two
摘要：Dividing by a power of 2 can be performed using a right shift operation. The two different shifts-logical and arithmetic-serve the shift operation for unsigned and two's-complement numbers, respectively. 阅读全文
posted @ 2013-01-17 16:16 winko 阅读(223) 评论(0) 推荐(0)
2.3 Integer Arithmetic
摘要：Adding two positive integers can yield a negative result, and the comparation xy can yield a different result with the comparation x-y0. This properties are caused by the finite nature of computer arithmetic. 阅读全文
posted @ 2013-01-16 16:36 winko 阅读(338) 评论(0) 推荐(0)
2.2 Integer representation
摘要：Both C and C++ support signed(the default) and unsigned numbers, and Java support only signed numbers. 阅读全文
posted @ 2013-01-15 15:46 winko 阅读(503) 评论(0) 推荐(0)
为什么宏INT_MIN要写成-2147483647-1
摘要：《深入理解计算机系统》在P105页，作者给出了INT_MIN在标准头文件limits.h中的定义 #define INT_MAX 2147483647 #define INT_MIN (-INT_MAX - 1) 阅读全文
posted @ 2013-01-15 15:28 winko 阅读(1388) 评论(0) 推荐(1)
二维数组存储
摘要：windows栈结构：向低地址处增长 阅读全文
posted @ 2013-01-07 15:04 winko 阅读(844) 评论(0) 推荐(0)