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Continuous Integration for Ruby on Rails? [closed]
... But once you set it up you get a whole lot of plugins that can pull from most anywhere, run most anything, and report most everything. The OS X Installer points Jenkins at /Users/Shared/Jenkins/Home but fails to create that directory or chown it to daemon (which is uses by default, and you should c...
How do I declare an array of weak references in Swift?
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Please post your problem code in a new question; no reason to ding my answer when it might be your code!
– GoZoner
Jul 30 '15 at 0:35
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What is a handle in C++?
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Is it possible to convert a HANDLE into an equivalent in Linux? I have to migrate a program that uses HANDLE from Windows to Linux.
– Cornel Verster
Nov 4 '15 at 13:33
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Explanation of JSHint's Bad line breaking before '+' error
...s format? To me it has the edge in scannability.
– HostileFork says dont trust SE
Mar 20 '15 at 1:47
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Right query to get the current number of connections in a PostgreSQL DB
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Those two requires aren't equivalent. The equivalent version of the first one would be:
SELECT sum(numbackends) FROM pg_stat_database;
In that case, I would expect that version to be slightly faster than the second one, simp...
Clear variable in python
... in that setting a variable to null in PHP gives you similar behaviour in most cases as if you hadn't defined it in the first place. A value of None in Python is quite different from an undefined variable. None is quite like most other incarnations of null, however (until we get into more arcane det...
How to check if AlarmManager already has an alarm set?
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Following up on the comment ron posted, here is the detailed solution. Let's say you have registered a repeating alarm with a pending intent like this:
Intent intent = new Intent("com.my.package.MY_UNIQUE_ACTION");
PendingIntent pendingIntent = PendingInte...
Which Java Collection should I use?
...Standard Library container in C++11? is a handy flow chart to use when choosing C++ collections.
7 Answers
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What does && mean in void *p = &&abc;
I came across a piece of code void *p = &&abc; . What is the significance of && here?
I know about rvalue references but I think && used in this context is different. What does && indicate in void *p = &&abc; ?
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How do I shutdown, restart, or log off Windows via a bat file?
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The most common ways to use the shutdown command are:
shutdown -s — Shuts down.
shutdown -r — Restarts.
shutdown -l — Logs off.
shutdown -h — Hibernates.
Note: There is a common pitfall wherein users think -h means "hel...