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Determine the line of code that causes a segmentation fault?
...ou exactly where a segfault happened and why.
– Tim Post♦
May 21 '10 at 16:38
1
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Getting error: Peer authentication failed for user “postgres”, when trying to get pgsql working with
...
The problem is still your pg_hba.conf file (/etc/postgresql/9.1/main/pg_hba.conf*).
This line:
local all postgres peer
Should be:
local all postgres md5
* If you can't find thi...
Python in Xcode 4+?
...mmands into Terminal: which python3 and which python.
Click “Next”.
Choose where to save it and click “Create”.
In the menu bar, click “File” → “New” → “New File…”.
Select “Other” under “OS X”.
Select “Empty” and click “Next”.
Navigate to the project folder ...
How can I find out if I have Xcode commandline tools installed?
...by running command gcc --version, which gives the gcc details. I am on Mac OS X 10.13.6.
– GAURAV SRIVASTAVA
Sep 26 '18 at 21:37
...
How to prevent SIGPIPEs (or handle them properly)
...use signal handlers in C have many restrictions on what they can do.
The most portable way to do this is to set the SIGPIPE handler to SIG_IGN. This will prevent any socket or pipe write from causing a SIGPIPE signal.
To ignore the SIGPIPE signal, use the following code:
signal(SIGPIPE, SIG_IGN)...
When do I use the PHP constant “PHP_EOL”?
...
Yes, PHP_EOL is ostensibly used to find the newline character in a cross-platform-compatible way, so it handles DOS/Unix issues.
Note that PHP_EOL represents the endline character for the current system. For instance, it will not find a Win...
InputStream from a URL
...ur original code uses FileInputStream, which is for accessing file system hosted files.
The constructor you used will attempt to locate a file named a.txt in the www.somewebsite.com subfolder of the current working directory (the value of system property user.dir). The name you provide is resolved ...
Take a char input from the Scanner
...al keyboard strokes, this is not going to work. You would need to do some OS-specific native code stuff to turn off or work around line-buffering for console at the OS level.
Reference:
How to read a single char from the console in Java (as the user types it)?
...
A cron job for rails: best practices?
...requent tasks (esp. where you want to avoid the Rails environment startup cost) my preferred approach is to use system cron to call a script that will either (a) poke a secure/private webhook API to invoke the required task in the background or (b) directly enqueue a task on your queuing system of c...
Streaming Audio from A URL in Android using MediaPlayer?
...R.id.button1);
mediaPlayer = new MediaPlayer();
mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
btn.setOnClickListener(pausePlay);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
get...