查找表 [英] lookup tables

问题描述

什么是查找表？它们如何用于优化代码？

解决方案

ju ********** @ yahoo.co.in 写道：

什么是查找表？它们如何用于优化代码？

它主要用于比特摆弄。

参见常见问题解答--20.12和20.13
@ http：//www.eskimo .com / ~scs / C-faq / top.html


- Ravi

ju**********@yahoo.co.in 写道：< blockquote class =post_quotes>什么是查找表？它们如何用于优化代码？

请自己做作业。


你已经在这里发布了所有关于作业的问题：

1：结构中变量之间的填充

2：多个返回语句Vs goto''s

3：写出优化代码

4：寄存器变量

5：与字符串指针有关的疑问。

6：哪个更好切换或者if-else

jacob navia写道：

ju ********** @ yahoo.co.in 写道：

什么是查找表？如何使用它们来优化代码
？

请自己做作业。

你已经在这里发布了所有关于作业的问题：
1：结构中变量之间的填充
2：多个返回语句Vs goto'的
3：写一个优化的代码
4：注册变量
5：怀疑相关的字符串指针。
6：哪个更好切换。或者if-else

我确实在网上搜索答案但是越来越混淆了。

所以，我想到了将它们发布在这里。

what are lookup tables ? How can they be used to optimise the code ?

解决方案

ju**********@yahoo.co.in wrote:

what are lookup tables ? How can they be used to optimise the code ?

Its mainly used for bit fiddling.
See the FAQ''s - 20.12 and 20.13
@ http://www.eskimo.com/~scs/C-faq/top.html

- Ravi

ju**********@yahoo.co.in wrote:

what are lookup tables ? How can they be used to optimise the code ?

Please do your own homework.

You have posted all the questions of your homework here:
1: padding between variables in a structure
2: Multiple return statements Vs goto''s
3: wrinting an optimised code
4: register variables
5: doubt related to string pointers.
6: which is better "switch" or "if-else"

jacob navia wrote:

ju**********@yahoo.co.in wrote:

what are lookup tables ? How can they be used to optimise the code ?

Please do your own homework.

You have posted all the questions of your homework here:
1: padding between variables in a structure
2: Multiple return statements Vs goto''s
3: wrinting an optimised code
4: register variables
5: doubt related to string pointers.
6: which is better "switch" or "if-else"

I did search the answers on net but got confused more and more.
So, I thought to post them here.

这篇关于查找表的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！