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What is the difference between the kernel space and the user space?
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The really simplified answer is that the kernel runs in kernel space, and normal programs run in user space. User space is basically a form of sand-boxing -- it restricts user programs so they can't mess with memory (and other reso...
Drop unused factor levels in a subsetted data frame
...tion, a new data frame is created. However, the factor variable retains all of its original levels, even when/if they do not exist in the new dataframe.
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Servlet for serving static content
...;url-pattern>/</url-pattern>
</servlet-mapping>
This basically just maps all content files by extension to the default servlet, and everything else to "myAppServlet".
It works in both Jetty and Tomcat.
s...
Is it possible dynamically to add String to String.xml in Android?
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Formatting and Styling
Yes, see the following from String Resources: Formatting and Styling
If you need to format your strings using String.format(String, Object...), then you can do so by putting your format arguments i...
Xcode build failure “Undefined symbols for architecture x86_64”
...ometimes the error "build failure “Undefined symbols for architecture x86_64”" may be caused by this. Because, some libs (not Apple's) were compiled for x32 originally and doesn't support x64.
So what you need, is to change the "Architectures" for your project target like this
NB. If you're us...
How to enable mod_rewrite for Apache 2.2
I've got fresh install of Apache 2.2 on my Vista machine, everything works fine, except mod rewrite.
15 Answers
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Android: Share plain text using intent (to all messaging apps)
...ablet, I was asked to choose from the list of apps. Probably its about installing those extra apps on emulator.
– Piyush-Ask Any Difference
Mar 5 '13 at 15:57
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Why do we need extern “C”{ #include } in C++?
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C and C++ are superficially similar, but each compiles into a very different set of code. When you include a header file with a C++ compiler, the compiler is expecting C++ code. If, however, it is a C header, then the compiler expects the data cont...
vc/mfc *通配符 批量删除文件 - C/C++ - 清泛网 - 专注C/C++及内核技术
...使用SHFileOperation函数：#include "stdafx.h"#include <windows.h>int _tmain(int argc, _TCHAR*...直接上代码，可直接运行亲测有效，使用SHFileOperation函数：
#include "stdafx.h"
#include <windows.h>
int _tmain(int argc, _TCHAR* argv[])
{
LPTSTR delFileName = L"c...
Inconsistent Accessibility: Parameter type is less accessible than method
I'm trying to pass an object (a reference to the currently logged on user, basically) between two forms. At the moment, I have something along these lines in the login form:
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