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How to see which flags -march=native will activate?
...ggest that this is suboptimal. The output of --help=target doesn't display CPU cache information, of which the methods both elias and 42n4 below have listed. Specifically, on gcc 4.9.2 on a Phenom, the output includes these: --param l1-cache-size=64 --param l1-cache-line-size=64 --param l2-cache-siz...
Difference between API and ABI
...system. The ABI defines the API plus the machine language for a particular CPU family. An API does not ensure runtime compatibility, but an ABI does, because it defines the machine language, or runtime, format.
Courtesy
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OnNotify函数 ON_NOTIFY消息总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...个窗口发的(当然可以用参数进行约定)。
如何解决这个问题?
有几种思路:1.重写ON_MESSAGE宏,增加ID的限制;2.模拟按钮单击消息;3.自定义WM_NOTIFY消息。基于这些思路都不能修改MFC底层的代码。
用调试的方式查看MFC的实现代...
Should I instantiate instance variables on declaration or in the constructor?
...ow it was him). Personal taste is personal taste; ultimately, neither the CPU nor the JRE care about syntactical style.
– Aquarelle
Sep 20 '13 at 22:38
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IN vs OR in the SQL WHERE Clause
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| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
--------------------------------------------------------------------------------------
| 0 | SELECT STATEMENT | | 8 | 1416 | 163 (2)| 00:00:02 |
|* 1 | TABLE ACCESS ...
Is there a generator version of `string.split()` in Python?
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This is because memory is slower than cpu and in this case, the list is loaded by chunks where as all the others are loaded element by element. On the same note, many academics will tell you linked lists are faster and have less complexity while your computer wil...
App Inventor 2 SQLite 拓展:超流行兼容主流SQL语法的迷你本地数据库引擎 ...
...不需要回复的可留空~ 请描述您的问题(300字以内): 给个鼓励也行呐~o~ 提供截图(仅截取当前可视区域...
WebRTC - scalable live stream broadcasting / multicasting
...single broadcast can be relayed over unlimited users without any
bandwidth/CPU usage issues. Everything happens peer-to-peer!
This should definitely be possible to complete.
Others are also able to achieve this: http://www.streamroot.io/
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How to overload the operator++ in two different ways for postfix a++ and prefix ++a?
...erformance difference. If the object you are returning doesn't fit into a CPU register, then you are doing an expensive copy operation. This is fine if you need to use the pre-incremented value, but if you don't, postfix is much better. An example would be an iterator where you typically use: for...
What is the JavaScript convention for no operation?
...rs seem to do nothing to execute the noop defined this way (and hence save CPU cycles), there might be some performance issues associated with this (as is also mentioned by others in comments or in other answers).
However, that being said, you can easily define your own noop function and, infact, m...
