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When would anyone use a union? Is it a remnant from the C-only days?
I have learned but don't really get unions. Every C or C++ text I go through introduces them (sometimes in passing), but they tend to give very few practical examples of why or where to use them. When would unions be useful in a modern (or even legacy) case? My only two guesses would be programming ...
将Linux代码移植到Windows的简单方法 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...一个原因是移植代码过程中需要一个特殊的头文件config.h。config.h是移植过程中最重要的源代码文件。Config.h文件并不是源代码本身的一部分。文件是在Cygwin下面运行”./configure”命令时生成的。在Cygwin下运行”./Configure”命令时...
rpcndr.h和wtypes.h冲突的解决方法 - C/C++ - 清泛网 - 专注C/C++及内核技术
rpcndr.h和wtypes.h冲突的解决方法当编译出现如下错误时：1>c: program files (x86) microsoft sdks windows v7.0a include rpcndr.h(162): error C2632: char后面的in...当编译出现如下错误时：
1>c:\program files (x86)\microsoft sdks\windows\v7.0a\include\rpcndr.h(162): e...
Where is PATH_MAX defined in Linux?
Which header file should I invoke with #include to be able to use PATH_MAX as an int for sizing a string?
5 Answers
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What does #defining WIN32_LEAN_AND_MEAN exclude exactly?
I found the explanation defining WIN32_LEAN_AND_MEAN "reduces the size of the Win32 header files by excluding some of the less frequently used APIs". Somewhere else I read that it speeds up the build process.
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How to find out client ID of component for ajax update/render? Cannot find component with expression
The following code is inspired from PrimeFaces DataGrid + DataTable Tutorials and put into a <p:tab> of a <p:tabView> residing in a <p:layoutUnit> of a <p:layout> . Here is the inner part of the code (starting from p:tab component); the outer part is trivial.
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vs
What is the difference between stdint.h and cstdint ?
3 Answers
3
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Cannot open include file 'afxres.h' in VC2010 Express
I'm trying to compile an old project using VS express 2010 but I get this error:
8 Answers
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Windows x64编程中寄存器的使用 - C/C++ - 清泛网 - 专注C/C++及内核技术
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RDX
Volatile
Second integer argument
R8
Volatile
Third integer argument
R9
Volatile
Fourth integer argument
R10:R11
Volatile
Must be preserved as needed by caller; used in syscall/sysret instructions
R12:R15
Nonvolatile
Must be preserved b...
When should I use h:outputLink instead of h:commandLink?
When should I use an <h:outputLink> instead of an <h:commandLink> ?
2 Answers
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