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Why is creating a new process more expensive on Windows than Linux?
...ight about that process creation plays a less important role on NT than on Unix as NT, in contrast to Unix, favors multithreading over multiprocessing.
Rob, it is true that fork is relatively cheap when COW is used, but as a matter of fact, fork is mostly followed by an exec. And an exec has to loa...
What are carriage return, linefeed, and form feed?
...he only one worth worrying about) is lines end with CRLF on Windows, NL on Unix-likes, and CR on older Macs (the situation has changed with OS X to be like Unix). Note the shift in meaning from LF to NL, for the exact same character, gives the differences between Windows and Unix. (Windows is, of ...
Recommended way to get hostname in Java
...ictly speaking - you have no choice but calling either hostname(1) or - on Unix gethostname(2). This is the name of your computer. Any attempt to determine the hostname by an IP address like this
InetAddress.getLocalHost().getHostName()
is bound to fail in some circumstances:
The IP address might ...
Bash array with spaces in elements
...
If you had your array like this:
#!/bin/bash
Unix[0]='Debian'
Unix[1]="Red Hat"
Unix[2]='Ubuntu'
Unix[3]='Suse'
for i in $(echo ${Unix[@]});
do echo $i;
done
You would get:
Debian
Red
Hat
Ubuntu
Suse
I don't know why but the loop breaks down the spaces and put...
UNIX export command [closed]
...
Unix
The commands env, set, and printenv display all environment variables and their values. env and set are also used to set environment variables and are often incorporated directly into the shell. printenv can also be use...
Eclipse RCP开发桌面程序 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...基本上可以构建功能比较复杂的程序了。但这仅仅只是RCP编程的开端。下一节，我们将一起探索Eclipse的透视图和视图。
===============================================================
Eclipse RCP开发中，和用户进行交互最多的界面，应该是视...
How to detect reliably Mac OS X, iOS, Linux, Windows in C preprocessor? [duplicate]
...r "Unknown Apple platform"
#endif
#elif __linux__
// linux
#elif __unix__ // all unices not caught above
// Unix
#elif defined(_POSIX_VERSION)
// POSIX
#else
# error "Unknown compiler"
#endif
The defined macros depend on the compiler that you are going to use.
The _WIN64 #ifdef ...
How do I find the location of the executable in C? [duplicate]
...
To summarize:
On Unixes with /proc really straight and realiable way is to:
readlink("/proc/self/exe", buf, bufsize) (Linux)
readlink("/proc/curproc/file", buf, bufsize) (FreeBSD)
readlink("/proc/self/path/a.out", buf, bufsize) (Solaris)
O...
What's the best CRLF (carriage return, line feed) handling strategy with Git?
...ocrlf=true if you like
DOS ending or core.autocrlf=input if you prefer
unix-newlines. In both cases, your Git repository will
have only LF, which is the Right Thing. The only
argument for core.autocrlf=false was that automatic
heuristic may incorrectly detect some binary as text
and then...
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...
...
在编写此扩展之前，我从未进行过任何 Android 编程。我突然需要一款小型应用，这将是一次完美的学习体验。从小处着手，我遇到了 App Inventor 以及该平台的所有变体。经过一番研究，我得出结论，这将是一个不错的...