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How can I start PostgreSQL server on Mac OS X?
...nchctl plists to start automatically. For more information, run brew info postgres.
Start manually
pg_ctl -D /usr/local/var/postgres start
Stop manually
pg_ctl -D /usr/local/var/postgres stop
Start automatically
"To have launchd start postgresql now and restart at login:"
brew services start postgre...
Quick and easy file dialog in Python?
...w I'm prompting the user for the file to parse using raw_input which is most unfriendly, especially because the user can't copy/paste the path. I would like a quick and easy way to present a file selection dialog to the user, they can select the file, and then it's loaded to the database. (In my...
MFC CSyncObject，CSingleLock，CMultiLock同步类 - C/C++ - 清泛网 - 专注C/C++及内核技术
...yncObject
1、纯虚类，作为具体同步类的基类，它只作为一个接口使用
2、有两个关键的成员函数Lock()、UnLock()，CSyncObject后面的四类都通过这两个统一接口进行同步操作。
1）不带参数的 UnLock() 是纯虚函数，在CSyncObject...
iPhone OS: How do I create an NSDate for a specific date?
...Minute, setSecond, etc. for finer granularity.
– devios1
Jul 5 '13 at 18:53
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How to save a Python interactive session?
...as
%save current_session ~0/
%save previous_session ~1/
Look at the videos on the presentation page to get a quick overview of the features.
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Java String new line
... The third option is best for portability.
– Amos Bordowitz
Dec 2 '18 at 13:17
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Make xargs handle filenames that contain spaces
...layer
This method is simpler and works with the GNU xargs as well.
For MacOS:
ls *.mp3 | tr \\n \\0 | xargs -0 mplayer
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How to repeat a string a variable number of times in C++?
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std::string(5, '.')
This is a contrived example of how you might use an ostringstream to repeat a string n times:
#include <sstream>
std::string repeat(int n) {
std::ostringstream os;
for(int i = 0; i < n; i++)
os << "repeat";
return os.str();
}
Depending on...
Git for beginners: The definitive practical guide
Ok, after seeing this post by PJ Hyett , I have decided to skip to the end and go with Git .
37 Answers
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Why I cannot cout a string?
...
You need to include
#include <string>
#include <iostream>
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