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Is it better to use std::memcpy() or std::copy() in terms to performance?
...ion. In my test, I hash 5 strings using all four SHA-2 versions (224, 256, 384, 512), and I loop 300 times. I measure times using Boost.timer. That 300 loop counter is enough to completely stabilize my results. I ran the test 5 times each, alternating between the memcpy version and the std::copy ver...
What is a mixin, and why are they useful?
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A mixin is a special kind of multiple inheritance. There are two main situations where mixins ...
How to print (using cout) a number in binary form?
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437
The easiest way is probably to create an std::bitset representing the value, then stream that t...
phpcms与ucenter整合常见问题与解答 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...带的 UCenter 客户端版本为 1.5.1 Release 20100501 ，而 Discuz! X3.0 使用的版本为 1.6.0 。版本不一致，无法整合成功。
3、整合成功后，能达到怎样的效果？
答：实现 phpcms 与 Discuz! 会员的双向同步注册、登录、退出等。
4、第一次在 p...
Convert UTC date time to local date time
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30 Answers
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Pass an array of integers to ASP.NET Web API?
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637
You just need to add [FromUri] before parameter, looks like:
GetCategories([FromUri] int[] cat...
Python multiprocessing PicklingError: Can't pickle
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Here is a list of what can be pickled. In particular, functions are only picklable if they are...
BLE协议—广播和扫描 - 创客硬件开发 - 清泛IT社区，为创新赋能！
...9BED6，广播包只能在广播信道（channel）上传输，即只能在37/38/39信道上传输（注：从蓝牙5.0开始广播包可以在其它信道上传输）。广播包发送给附近所有的observer（扫描者）。数据包：数据包Access Address为一个32bit的随机值，由Init...
what is the right way to treat Python argparse.Namespace() as a dictionary?
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Vim: insert the same characters across multiple lines
...to the n in name.
Enter visual block mode (Ctrlv).
Press j three times (or 3j).
Press I (capital i).
Type in vendor_. Note: It will only update the screen in the first line - until Esc is pressed (6.), at which point all lines will be updated.
Press Esc.
An uppercase I must be used rather than a...