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How can I link to a specific glibc version?
...blog post Linking to Older Versioned Symbols (glibc), it is possible to to force any symbol to be linked against an older one so long as it is valid by using the the same .symver pseudo-op that is used for defining versioned symbols in the first place. The following example is excerpted from the bl...
What belongs in an educational tool to demonstrate the unwarranted assumptions people make in C/C++?
I'd like to prepare a little educational tool for SO which should help beginners (and intermediate) programmers to recognize and challenge their unwarranted assumptions in C, C++ and their platforms.
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How to read if a checkbox is checked in PHP?
...nput type="checkbox" name="test" value="value1">
After submitting the form you can check it with:
isset($_POST['test'])
or
if ($_POST['test'] == 'value1') ...
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jQuery AJAX file upload PHP
...loads directory. The jQuery ajax method (running in the browser) sends the form data to the server, then a script on the server handles the upload. Here's an example using PHP.
Your HTML is fine, but update your JS jQuery script to look like this:
$('#upload').on('click', function() {
var file...
PHP array_filter with arguments
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Good workaround. For the sake of maintainable code, it might help to modify the class to support more readable method calls as well: $matches = $myobj->ArraySelect( Array('from'=>$arr, 'where'=>$foo, 'lessthan'=>12 ) )
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Why do people say there is modulo bias when using a random number generator?
...n 0 and RAND_MAX, which is a constant defined in cstdlib (see this article for a general overview on rand()).
Now what happens if you want to generate a random number between say 0 and 2? For the sake of explanation, let's say RAND_MAX is 10 and I decide to generate a random number between 0 and 2 ...
Best practice for Python assert
...h early in the case of a corrupt program state.
Exceptions should be used for errors that can conceivably happen, and you should almost always create your own Exception classes.
For example, if you're writing a function to read from a configuration file into a dict, improper formatting in the fi...
How to calculate the bounding box for a given lat/lng location?
... in the documentation of the suggested CPAN library, this makes sense only for halfSide <= 10km.
– Federico A. Ramponi
Oct 27 '08 at 3:53
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How do I get my Python program to sleep for 50 milliseconds?
How do I get my Python program to sleep for 50 milliseconds?
6 Answers
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How to convert a scala.List to a java.util.List?
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Scala List and Java List are two different beasts, because the former is immutable and the latter is mutable. So, to get from one to another, you first have to convert the Scala List into a mutable collection.
On Scala 2.7:
import scala.collection.jcl.Conversions.unconvertList
import s...