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What are Runtime.getRuntime().totalMemory() and freeMemory()?

.../www.oracle.com/technetwork/java/javase/memorymanagement-whitepaper-150215.pdf"> * Memory Management in the Sun Java HotSpot™ Virtual Machine</a> * @see <a href="http://docs.oracle.com/javase/8/docs/technotes/tools/windows/java.html"> * Full VM options reference for Windo...
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GOTO still considered harmful? [closed]

...to statement considered harmful (also here .html transcript and here .pdf) and there has been a formidable push since that time to eschew the goto statement whenever possible. While it's possible to use goto to produce unmaintainable, sprawling code, it nevertheless remains in modern programmi...
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动态追踪(Dynamic Tracing)技术漫谈 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术

...内核模块。Oracle 也有在它自己的 Oracle Linux 操作系统发行当中开始针对 Linux 内核进行 DTrace 移植。不过 Oracle 的移植工作好像一直没有多少起色,毕竟 Linux 内核并不是 Oracle 控制的,而 DTrace 是需要和操作系统内核紧密集成的...
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vs2008编译boost详细步骤 - 开源 & Github - 清泛网 - 专注C/C++及内核技术

...st 源代码所在路径最好全英文,不要有空格、特殊字符、中文等 编译要花上30分钟左右(根据PC性能所定), 会在指定生成目录: D:\05_Computer\04_3rdPatry\02Boost\boost_1_44_0\output下生成对应库文件和头文件。 8.设置开发环境 打...
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Push Notifications in Android Platform

...(e.g. IA92 : www-01.ibm.com/support/docview.wss?rs=171&uid=swg24006006 pdf on that page, and Javadoc in the zip on that page) – dalelane Nov 5 '09 at 16:13 add a comment ...
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Is it smart to replace boost::thread and boost::mutex with c++11 equivalents?

... the thread library) is open-std.org/jtc1/sc22/wg21/docs/papers/2011/n3242.pdf – Anthony Williams Aug 30 '11 at 11:20 add a comment  |  ...
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When to use reinterpret_cast?

...pression. Also look at github.com/cplusplus/draft/blob/master/papers/N3797.pdf (5.19 constant expressions) pages125-126 which explicitly rules out reinterpret_cast. Then 7.1.5 The constexpr specifier item 5 (page 146) *For a non-template, non-defaulted constexpr function ... if no argument values e...
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When should I use a trailing slash in my URL?

...g system would be a file path such as file:///home/username/RomeoAndJuliet.pdf, identifying the electronic book saved in a file on a local hard disk. Source: Wikipedia: Uniform Resource Identifier Another good source to read: Wikipedia: URI Scheme According to RFC 1738, which defined URLs in ...
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C语言结构体里的成员数组和指针 - c++1y / stl - 清泛IT社区,为创新赋能!

...是不是像一个C++的类?)这种玩法英文叫:Flexible Array,中文翻译叫:柔性数组。我们来用gdb看一下:(gdb) p thisline $1 = (struct line *) 0x601010 (gdb) p *thisline $2 = {length = 10, contents = 0x601010 "\n"} (gdb) p thisline->contents $3 = 0x60101...
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What is a semaphore?

... Look at this Stanford concurrency PDF document. Look at pages 8. The above explanation will make more sense then.. see.stanford.edu/materials/icsppcs107/… – Kris Subramanian Feb 23 '16 at 1:13 ...