大约有 1,600 项符合查询结果(耗时:0.0158秒) [XML]

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How do malloc() and free() work?

... virtual memory manager can handle (most often multiples of 512 bytes e.g. 4KB). So returning 40 Bytes to the OS will just not work. So what does free do? Free will put the memory block in its own free block list. Normally it also tries to meld together adjacent blocks in the address space. The fr...
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程序员才能听得懂的笑话 - 轻松一刻 - 清泛网 - 专注C/C++及内核技术

...娘骑着这个车过来,并停在我跟前,把衣服全脱了,然后我说,‘你想要什么都可以’”。另一个程序员马上说到,“你绝做了一个正确的选择,因为那姑娘的衣服你并不一定穿得了”。 15、为什么程序员喜爱UNIX:un...
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Why is the .bss segment required?

...ny uninitialized buffers 4096 bytes in length. Would you want all of those 4k buffers to contribute to the size of the binary? That would be a lot of wasted space. – Jeff Mercado Mar 2 '12 at 15:02 ...
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What is the difference between localStorage, sessionStorage, session and cookies?

...domain. This gives you considerably more space to work with than a typical 4KB cookie. The data is not sent back to the server for every HTTP request (HTML, images, JavaScript, CSS, etc) - reducing the amount of traffic between client and server. The data stored in localStorage persists until explic...
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Nginx缓存解决方案:SRCache - 更多技术 - 清泛网 - 专注C/C++及内核技术

...数据一致性问题,所以它只是一个粗线条的解决方案。 此类问题而言,SRCache是一个细粒度的解决方案。其工作原理大致如下: SRCache工作原理 当问题比较简单的时候,通常SRCache和Memc模块一起搭配使用。网上能搜索到一...
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创业第一年 太特么累了 - 资讯 - 清泛网 - 专注C/C++及内核技术

...你谈理想情怀。 理想情怀,听起来高大上,实际上就是以往生活各种不爽的提炼升华,以及今后实现人生价值的向往和追求。如果听不懂我再解释一下,就是“今天你我爱理不理,明天我让你高攀不起”,以及“当上总...
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C++并发编程(中文版) - 文档下载 - 清泛网 - 专注C/C++及内核技术

C++并发编程(中文版)C++并发编程(中文版)作为《C++ Concurrency in Action》的中文翻译。本书是基于C++11新标准的并发和多线程编程深度指南。从std::thr 作为《C++ Concurrency in Action》的中文翻译。 本书是基于C++11新标准的并...
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Socket send函数和recv函数详解以及利用select()函数来进行指定时间的阻塞 ...

...断开的话,调用send的进程会接收到一个SIGPIPE信号,进程该信号的默认处理是进程终止。 recv函数 int recv( SOCKET s, char FAR *buf, int len, int flags ); 不论是客户还是服务器应用程序都用recv函数从TCP连接的另一端接收数据。 该函数...
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一文了解大数据领域创业的机会与方向 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术

...也经常为大数据站台,为中国的大数据发展点赞。看政府大数据的重视,你抬头看看前两天的北京的蓝天,就会政府有信心了。政府真正要干一件事,执行力大的超出你的预期。 据我们的观察,大数据领域的创业环境只会...
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Maximum number of characters using keystrokes A, Ctrl+A, Ctrl+C and Ctrl+V

...the number of printed As: If N > 10, the number of As will be: 4^{N+1-4K}·3^{5K-N-1} share | improve this answer | follow | ...