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Is it safe to parse a /proc/ file?
...t the consistency of a file in /proc. For example, see this bug which came from assuming that /proc/mounts was a consistent snapshot.
For example:
/proc/uptime is totally atomic, as someone mentioned in another answer -- but only since Linux 2.6.30, which is less than two years old. So even this...
Android Webview - Completely Clear the Cache
...vities, and when it loads a webpage, the page gathers some background data from Facebook.
13 Answers
...
PHP filesize MB/KB conversion [duplicate]
...
Here is a sample:
<?php
// Snippet from PHP Share: http://www.phpshare.org
function formatSizeUnits($bytes)
{
if ($bytes >= 1073741824)
{
$bytes = number_format($bytes / 1073741824, 2) . ' GB';
}
elseif (...
What exactly is OAuth (Open Authorization)?
...ire list of friends, calendar and what not.
It allows you to manage access from the resource provider's application. If the third-party application does not provide mechanism for cancelling access, you would be stuck with them having access to your information. With OAuth, there is provision for rev...
Structure padding and packing
... struct in an array */
} x;
Packing, on the other hand prevents compiler from doing padding - this has to be explicitly requested - under GCC it's __attribute__((__packed__)), so the following:
struct __attribute__((__packed__)) mystruct_A {
char a;
int b;
char c;
};
would produce s...
File Upload using AngularJS
...
FileReader is a class from standard HTML5 File API w3.org/TR/FileAPI. It allows you to read data from file specified in html input element and process it inside onloadend callback function. You don't need any library to use this API, its already i...
Convert ArrayList to String[] array [duplicate]
...ining a primitive type object, e.g. Double, Float, Integer, Long. And then from there your normal arrays must be defined with this type, e.g. Double[] myDoubleArray = list.toArray(new Double[listOfDoubles.size()]);
– planty182
Sep 5 '13 at 13:03
...
Programmer Puzzle: Encoding a chess board state throughout a game
...ng:
e4 e5
Nf3 Nc6
…
which translates to:
White moves king’s pawn from e2 to e4 (it is the only piece that can get to e4 hence “e4”);
Black moves the king’s pawn from e7 to e5;
White moves the knight (N) to f3;
Black moves the knight to c6.
…
The board looks like this:
An impor...
How to open a new tab using Selenium WebDriver?
...w instead of ne tab. It does so on Firefox in test mode. At least when run from Katalon (which uses Selenium under the hood).
– Nux
Sep 3 at 9:06
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How do exceptions work (behind the scenes) in c++
...what all the __cxa_ functions do, see the original specification they came from:
Itanium C++ ABI
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