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Why prefer two's complement over sign-and-magnitude for signed numbers?
...o add them.
Two's complement addition is very simple. You add numbers normally and any carry bit at the end is discarded. So they're added as follows:
0010
+ 1111
=10001
= 0001 (discard the carry)
0001 is 1, which is the expected result of "2+(-1)".
But in your "intuitive" method, adding is m...
pythonic way to do something N times without an index variable?
...tion a million times, let's allocate a list of a million items too. If the CPU is working, shouldn't also the memory get stressed a little? The answer cannot be characterized as definitely “not useful” (it's showing a different, functioning approach) so I can't downvote, but I disagree and I'm t...
为什么你越努力，却越焦虑？ - 杂谈 - 清泛网 - 专注C/C++及内核技术
...谈谈。如果有所疏漏偏颇，期待大家指正！
看到这个问题，我顿时有一股扑面而来的辛酸，因为我曾经在人生最该拼搏的时候，沉溺在一段不努力也不焦虑的「舒适」中。回头看看这段经历，我想我能够立刻给这个问题一个...
携程遭超长宕机：内部数据管理恐存严重漏洞 - 资讯 - 清泛网 - 专注C/C++及内核技术
...目前官方透露的信息判断，携程网站数据层、网络层均没问题，那么问题就在应用层或存储逻辑层。很可能关键性的系统部署和配置数据已被删除或篡改了。
不过，前支付宝运维团队创始人智锦撰文指出，携程网宕机很可能并...
Controlling fps with requestAnimationFrame?
...isk of making my animation choppy, but right now it seems to run at drastically different speeds pretty arbitrarily, and I'm wondering if there's a way to combat that somehow.
...
win10启动过程中黑屏时间长的解决办法 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...屏时间长的解决办法关闭显卡的ULPS功能可完全解决这个问题。1.下载该文件：ulps_enable_disable.zip2.双击 Disable ULPS.reg。（Disable关闭，Enable是开启...关闭显卡的ULPS功能可完全解决这个问题。
1.下载该文件：ulps_enable_disable.zip
2.双击...
How can I use functional programming in the real world? [closed]
...ey avoid bugs by eliminating state, but also because they can be easily parallelized automatically for you, without you having to worry about the thread count.
...
Convert objective-c typedef to its string equivalent
...
This is really a C question, not specific to Objective-C (which is a superset of the C language). Enums in C are represented as integers. So you need to write a function that returns a string given an enum value. There are many ways to...
C# 能否获取一个对象所占内存的大小？ - 更多技术 - 清泛网 - 专注C/C++及内核技术
...所占内存的大小？今日，在项目重构的时候忽然想到一个问题，一个类哪些成员的增加，会影响一个类所占内存的大小？C#有没有办法知道一个对象占多少内存呢？ ...今日，在项目重构的时候忽然想到一个问题，一个类哪些成员...
What is the best open XML parser for C++? [duplicate]
...
How about RapidXML? RapidXML is a very fast and small XML DOM parser written in C++. It is aimed primarily at embedded environments, computer games, or any other applications where available memory or CPU processing power comes at a premium. RapidXML is licensed under Boost ...