不要告诉我们你能做什么，告诉我们你是怎么做的。
比如cond_var，能不能用更加浅显的语言来说，省得我们又要买书。
比如STL的源码，VC6臭名昭著，sgi的我觉得也看得费劲，能不能讲的更详细点。
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【 在 milksea (肥了，又肥了 >>>_<<<) 的大作中提到: 】
: 不懂 cond_var 不是 c++ 的问题吧，pthread 或者 windows api 里也都是一样的概念

你来了，太好了。

https://stackoverflow.com/questions/53286110/what-does-a-single-total-order-mean-in-stdnotify-one

The effects of notify_one()/notify_all() and each of the three atomic parts of wait()/wait_for()/wait_until() (unlock+wait, wakeup, and lock) take place in a single total order that can be viewed as modification order of an atomic variable: the order is specific to this individual condition_variable. This makes it impossible for notify_one() to, for example, be delayed and unblock a thread that started waiting just after the call to notify_one() was made.

What does it mean by saying "take place in a single total order"? How is this related to the next sentence "This makes it impossible ..... was made."? (It seems that it's telling a cause and effect).

I read it word by word more than 10 times and don't understand what it's saying.. Definition of "total order" from Wikipedia can't help much.

"偏序关系、全序关系都是公理集合论中的一种二元关系"。

我写了条知乎，但不知道对乎。total order是全序关系吗？pthread和Windows API，我还能看懂。再如vector的iterator，我是先知道的它，后看的设计模式。好像有本书叫做《用C++做设计》，北大翻译的那本书里也讲了些设计。我的意思是：有没有本书，讲std的设计和实现，例如cond_var调用了pthread吗？里面有几把锁，为什么…… 不用全讲，讲重点，数学少提一点，但可以给个链接，给有兴趣的人看，再如提句GOF的书里讲了iterator，没那么大兴趣的人，看完书后学到了（些）好的设计理念。不要搞成不先把离散数学和OS学好，就没法学C++了呀。20要上barrier了呀。
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"A strict weak ordering is a binary relation < on a set S that is a strict partial order (a transitive relation that is irreflexive, or equivalently, that is asymmetric) in which the relation "neither a < b nor b < a" is transitive. "

https://stackoverflow.com/questions/979759/operator-and-strict-weak-ordering

我记得人话版是[有错请纠正]: 一个STL的容器，放的是自定义的数据类型，例如struct Person {...}; 只需要定义<运算符。STL内部是如何判断等于的？if(!(a<b) && !(b<a))则说明a等于b。好得很，这给编译器的优化留下了巨大的生存空间啊。再定义operator==太过了。

>=就是!<，<=呢？我不知道。< || ==，< || (!< && !<)?

请问single total order是啥意思？

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我记得这些都是书：《C++程序设计语言》、《Linux系统编程》、《Unix开发环境》、《Windows网络编程》、《Windows多媒体编程》……
不能啥都往std里放啊。C++ 22再放点图像、音视频处理的算法？那C++课只能本科最后一年再上，研究生还得开《高级C++编程》
我觉得：C++语言本身、常用容器、strcmp，atoi之类，就差不多了。
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咱也文化下:-)：没有数据结构的编程语言是无用的。STL容器是数据结构的合理延伸。算法+数据结构=程序(这句抄的)，它们之间有着正交性(不是making love)，换而言之，某个算法可以应用于多种容器。i.e. A particular algorithm can be employed to fuck containers of various kinds. The relationship can be consummated in many programming languages.

Oh, my algorithm is having regular coitus with a hashset.
What's he talking, Amy?
记错了。The Big Bang Theory, 4-5:
Sheldon: I assure you I am quite real and I'm having regular intercourse with your daughter.
Mrs. Fowler: What?
Sheldon: Oh, yes. We're like wild animals in heat. It's a wonder neither of us has been hurt.
Mrs. Fowler: Amy, what is he saying?

talk可以及物，talking rubbish，但似乎不及物更多：What are you talking about? 语言啊语言
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