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总结const_cast、static_cast、dynamic_cast、reinterpret_cast - C/C++ - ...
...einterpret_cast:重新解释类型转换
const_cast:常量类型转换
专业的上面很多了,我说说我自己的理解吧:
synamic_cast一般用在父类和子类指针或应用的互相转化;
static_cast一般是普通数据类型(如int m=static_cast<int>(3.14));
reinterpret_cast...
推荐系统算法初探 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...而与浏览记录无关。然而它也会存在一些弊端，比如过度专业化(over-specialisation)的问题。这种方法会一直推荐给用户内容密切关联的item，而失去了推荐内容的多样性。
2.4 基于模型的算法
基于模型的方法有很多，用到的诸如机...
How does a language expand itself? [closed]
... some of Qt 's capabilities to code GUI programs. I asked myself the following question:
15 Answers
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Compiling with cython and mingw produces gcc: error: unrecognized command line option '-mno-cygwin'
I'm trying to compile a python extension with cython in win 7 64-bit using mingw (64-bit).
I'm working with Python 2.6 (Active Python 2.6.6) and with the adequate distutils.cfg file (setting mingw as the compiler)
...
Why doesn't .NET/C# optimize for tail-call recursion?
...ct between not spending too much time doing the compilation phase (thus slowing down short lived applications considerably) vs. not doing enough analysis to keep the application competitive in the long term with a standard ahead-of-time compilation.
Interestingly the NGen compilation steps are not ...
Any way to write a Windows .bat file to kill processes? [closed]
...
not work on win10 for kill backgrounds process. all background process in win 10 named RuntimeBroker.exe and when try kill nothing happened.
– Mostafa
Jun 15 '18 at 8:58
...
Putty: Getting Server refused our key Error
I created key pair using puttygen.exe (client is windows 8). On server (Ubuntu 12.04.3 LTS), I have put my public key in ~/.ssh/authorized_keys . The public key is this:
...
How do I draw a grid onto a plot in Python?
...rid.alpha'] = 1
plt.rcParams['grid.color'] = "#cccccc"
If grid is not showing even after changing these parameters then use
plt.grid(True)
before calling
plt.show()
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Apache .htaccess 禁止访问某目录方法 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...语法和主配置文件一样，但是做为用户，当然所能使用的命令是受到限制的。系统管理员可以通过配置apache的AllowOverride指令来配置决定.htaccess文件中哪些指令有效。如果在文档的子目录中还设置了.htaccess文件的话，子目录中的...
What is difference between sjlj vs dwarf vs seh?
...support Dwarf-2 Exception Handling?
The Dwarf-2 EH implementation for Windows is not designed at all to
work under 64-bit Windows applications. In win32 mode, the exception
unwind handler cannot propagate through non-dw2 aware code, this means
that any exception going through any non-dw2 ...