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外媒评本轮科技泡沫:创业公司首当其冲 九成将消失 - 资讯 - 清泛网 - 专注...

...团队,这个团队只能以财报电话会议内容以及各种棘手的问题为依据,对私营公司进行投资——把它们当作是上市公司。 总之,越来越多的日常投资者正暴露给后期私营科技公司,无论结果是好还是坏。据博伊德介绍,作为富...
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What is the difference between a process and a thread?

... referring to. Threads are an operating environment feature, rather than a CPU feature (though the CPU typically has operations that make threads efficient). Erlang uses the term "process" because it does not expose a shared-memory multiprogramming model. Calling them "threads" would imply that the...
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kernel stack and user space stack

...sable, and therefore will require one set under its own control. Different CPU architectures implement this in different ways; x86 CPUs automatically switch stackpointers when privilege mode switches occur, and the values to be used for different privilege levels are configurable - by privileged cod...
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Compiled vs. Interpreted Languages

...e. Or let's say: There are native compilers (creating machine code for the CPU to eat), and not-so-native-compilers (creating tokenized stuff, i.e. intermediate code, that some just-in-time compiler compiles to machine code before (or during) runtime ONCE), and there are "real" non-compilers that ne...
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Why doesn't C have unsigned floats?

...d floats is because there is no equivalent machine code operations for the CPU to execute. So it would be very inefficient to support it. If C++ did support it, then you would be sometimes using an unsigned float and not realizing that your performance has just been killed. If C++ supported it ...
https://www.tsingfun.com/it/tech/1167.html 

C#位运算符(C#按位与、按位或 等) - 更多技术 - 清泛网 - 专注C/C++及内核技术

...为1的位,新数中相应位为0。 (2)取一个数中某些指定位。 如想要取一个整数a(占2个字节)的低(高)字节,只需将a与八进制的377(177400)按位与即可。 (3)保留某一个数的某一位。 与一个数进行&运算...
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那些年 O2O创业我踩了十个坑 - 资讯 - 清泛网 - 专注C/C++及内核技术

...此一来,公司团队看似整齐而豪华,但内部却出现了很多问题,由于大家背景各异,来自于国企、外企和民企,处事风格完全迥异,很多事情在讨论中反复,反复后再讨论,浪费了大量的时间在开会和制定战略中,而且大家的价...
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Why does multiprocessing use only a single core after I import numpy?

...hine- and task-specific . Update: There are also two ways to disable the CPU affinity-resetting behaviour of OpenBLAS itself. At run-time you can use the environment variable OPENBLAS_MAIN_FREE (or GOTOBLAS_MAIN_FREE), for example OPENBLAS_MAIN_FREE=1 python myscript.py Or alternatively, if you...
https://www.tsingfun.com/it/cpp/1279.html 

了解 Boost Filesystem Library - C/C++ - 清泛网 - 专注C/C++及内核技术

...于处理文件系统操作的库,这一直是 C++ 语言存在的一个问题。过去,程序员必须使用本机 API 来解决此问题。通过本文您将了解一个提供安全、可移植且易用的 C++ 接口来促进文件系统操作的库:Boost Filesystem Library。 创建与...
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What is data oriented design?

...our data for efficient processing. Especially with respect to cache misses etc. Data Driven Design on the other hand is about letting data control a lot of your programs behavior (described very well by Andrew Keith's answer). Say you have ball objects in your application with properties such as co...