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SEH stack 结构探索(1)--- 从 SEH 链的最底层(线程第1个SEH结构)说起 -...

...TION_RECORD,即构造一个最底层的 SEH 结点 我们要看的是它如何构建 _EXCEPTION_REGISTRATION_RECORD 结构,我们最好准备纸笔记录下它的 stack 变化情况 1. ntdll32!_SEH_prolog4() 构造的 stack 结构 刚进入 ntdll32!_SEH_prolog4() 时的 stack 是下面的...
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iOS开发过程中的各种tips - 更多技术 - 清泛网 - 专注C/C++及内核技术

...直接在介绍AFNetworking的时候详解吧。 25.使用NSURLConnection下载数据 1. 创建对象 NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"http://www.baidu.com"]]; [NSURLConnection connectionWithRequest:request delegate:self]; 2. NSURLCon...
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Finding three elements in an array whose sum is closest to a given number

...fy the problem statement, instead we will search for aj and ak that sum to ai +S. – Boolean May 20 '11 at 14:59 3 ...
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Easy interview question got harder: given numbers 1..100, find the missing number(s) given exactly k

... every polynomial factors uniquely (ring of polynomials is an Euclidean domain), this means ai are uniquely determined, up to permutation. This ends a proof that remembering powers is enough to recover the numbers. For constant k, this is a good approach. However, when k is varying, the direct app...
https://www.tsingfun.com/ilife/tech/1156.html 

“互联网卖菜”没那么简单 创业者不要盲目跟风 - 资讯 - 清泛网 - 专注C/C+...

...的出发点是什么?便宜,吃的放心是最多的答案,但问及如何去做,多数人还是茫然。很多人都有这样的经历,每次去超市菜场总会暗骂商贩们把菜价喊得这么高,而且全部商贩统一口径不降价,第一反应想到的就是人工成本高...
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Find which commit is currently checked out in Git

...how. git log -1. Bash prompt. git status. git bisect visualize. I'll explain each option in detail below. Option 1: git show As explained in this answer to the general question of how to determine which commit you currently have checked-out (not just during git bisect), you can use git show wit...
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How are 3D games so efficient? [closed]

...timized instructions and special techniques exist when you're developing against a particular set of hardware, to enable even better speedups. The other part of your question is why a demo uses so much CPU: ... while a DX demo of a rotating Teapot @ 60fps uses a whopping 30% ? It's common fo...
https://www.tsingfun.com/it/cpp/2151.html 

总结const_cast、static_cast、dynamic_cast、reinterpret_cast - C/C++ - ...

...int类型在内存中所占字节数)。为了知道static_cast<> 实际如何,我们不得不要来看一下CDerived的内存布局。 CDerived的内存布局(Memory Layout) 如图所示,CDerived的内存布局包括两个对象,CBaseX 和 CBaseY,编译器也知道这一点...
https://www.tsingfun.com/it/tech/1336.html 

推荐系统算法初探 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...显然匹配前两个词都不如直接匹配英超来得准确,系统该如何体现出关键词的这种“重要性”呢?这时我们便可以引入词权的概念。在大量的语料库中通过计算(比如典型的TF-IDF算法),我们可以算出新闻中每一个关键词的权重...
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Find a Git branch containing changes to a given file

I have 57 local branches. I know I made a change to a certain file in one of them, but I'm not sure which one. Is there some kind of command I can run to find which branches contain changes to a certain file? ...