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IOCTL Linux device driver [closed]
...where you set up a file under /sys/ and read/write that to get information from and to the driver. An example of how to set this up:
static ssize_t mydrvr_version_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
return sprintf(buf, "%s\n", DRIVER_RELEASE);
}
static ...
What JSON library to use in Scala? [closed]
... to Scala version 2.9.x (removed in newer versions)
spray-json - Extracted from the Spray project
Jerkson ± - Warning a nice library (built on top of Java Jackson) but now abandonware. If you are going to use this, probably follow the Scalding project's example and use the backchat.io fork
sjson - ...
In C, how should I read a text file and print all strings
...
It is possible to read data from file without opening that file in c/c++??
– Sagar Patel
Oct 27 '15 at 11:13
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Save ArrayList to SharedPreferences
...commit();
You can also serialize your ArrayList and then save/read it to/from SharedPreferences. Below is the solution:
EDIT:
Ok, below is the solution to save ArrayList as a serialized object to SharedPreferences and then read it from SharedPreferences.
Because API supports only storing and retri...
Can you explain the HttpURLConnection connection process?
...// instantiate OutputStreamWriter using the output stream, returned
// from getOutputStream, that writes to this connection.
// 2. This is the point where you'll know if the connection was
// successfully established. If an I/O error occurs while creating
// the output stream, you'll...
Read input from console in Ruby?
...found in ARGV and only asks to console if not ARGV found. To force to read from console even if ARGV is not empty use STDIN.gets
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log4j vs logback [closed]
...by simply dropping slf4j-log4j12.jar onto your class path.
When migrating from logback to log4j, logback specific parts, specifically those contained in logback.xml configuration file would still need to be migrated to its log4j equivalent, i.e. log4j.properties. When migrating in the other direct...
Calling virtual functions inside constructors
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Calling virtual functions from a constructor or destructor is dangerous and should be avoided whenever possible. All C++ implementations should call the version of the function defined at the level of the hierarchy in the current constructor and no f...
Disable ActiveRecord for Rails 4
...ew my_app -O
For existing applications:
1. Remove database adapter gems from your Gemfile (mysql2, sqlite3, etc.)
2. Change your config/application.rb
Remove require 'rails/all line and require frameworks (among those available in your rails version, the list varies, do not just copy) you want ...
What is an optional value in Swift?
From Apple's documentation :
13 Answers
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