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How to destroy an object?
...for "speed", but if you want to reclaim memory immediately (at the cost of CPU) should want to use null.
Like others mentioned, setting to null doesn't mean everything is reclaimed, you can have shared memory (uncloned) objects that will prevent destruction of the object. Moreover, like others h...
总结const_cast、static_cast、dynamic_cast、reinterpret_cast - C/C++ - ...
...至它即便不是一个CDerived你也可以这样做。
当然，这个问题只在如果你做了多继承时发生。在你将CDerived转换 到 CBaseX时static_cast<> 和 reinterpret_cast<>是没有区别的。
情况3：void*之间的向前和向后转换
因为任何指针可以被转...
What is non-blocking or asynchronous I/O in Node.js?
...ng, asynchronous operations is that you can maximize the usage of a single CPU as well as memory.
Synchronous, blocking example
An example of synchronous, blocking operations is how some web servers like ones in Java or PHP handle IO or network requests. If your code reads from a file or the datab...
菜单的背景颜色 - C/C++ - 清泛网 - 专注C/C++及内核技术
...运行效果如下图：
（PS：不知道大家有没有碰到过这个问题,MENUINFO结构未定义，解决的方法是进入文件选项卡（FileView),在Source File文件下的StdAfx.cpp文件里的最前面部分添加这个语句：#define WINVER 0x0501）
设计弹出式菜单
CMen...
How can I propagate exceptions between threads?
...d). Within the body of the function we spawn multiple worker threads to do CPU intensive work, wait for all threads to finish, then return the result on the main thread.
...
C# List of objects, how do I get the sum of a property
...recommend you change it to: "Here is how you could do it" and "Here is the cpu performance of each option". Also in principle if you describe your testing methodology you need-not show us the code.
– Meirion Hughes
Feb 19 '16 at 10:08
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Python Process Pool non-daemonic?
...getting memory leak with this try using "with closing(MyPool(processes=num_cpu)) as pool:" to dispose of the pool properly
– Chris Lucian
Mar 15 '15 at 7:00
32
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Verify if a point is Land or Water in Google Maps
...and it is working not too bad... you can improve the test if you have more cpu to waste by adding pixels.
function isItWatter($lat,$lng) {
$GMAPStaticUrl = "https://maps.googleapis.com/maps/api/staticmap?center=".$lat.",".$lng."&size=40x40&maptype=roadmap&sensor=false&zoom=12&a...
Disable Interpolation when Scaling a
...n Webkit based) is forced to allow disabling antialiasing. Antialiasing is cpu-intensive operation and antialiasing 6656 x 4096 px image would be too slow, but fortunately unnecessary in such display.
– Timo Kähkönen
Oct 10 '12 at 15:45
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iTextSharp - Sending in-memory pdf in an email attachment
...
It's not. It's a waste of memory and CPU time because the bytes have to be copied from one to the other.
– Serguei Fedorov
Jun 4 '15 at 21:09
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