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how do I initialize a float to its max/min value?
...t;::min();
std::numeric_limits<float>::infinity();
As noted in the comments, min() returns the lowest possible positive value. In other words the positive value closest to 0 that can be represented. The lowest possible value is the negative of the maximum possible value.
There is of course ...
Is there a timeout for idle PostgreSQL connections?
... have a buggy application that leaks connections anyway; I very strongly recommend configuring PgBouncer.
A TCP keepalive won't do the job here, because the app is still connected and alive, it just shouldn't be.
In PostgreSQL 9.2 and above, you can use the new state_change timestamp column and th...
How do I make an asynchronous GET request in PHP?
...nts will do what you want
$output = file_get_contents('http://www.example.com/');
echo $output;
Edit: One way to fire off a GET request and return immediately.
Quoted from http://petewarden.typepad.com/searchbrowser/2008/06/how-to-post-an.html
function curl_post_async($url, $params)
{
forea...
Local variables in nested functions
...om the parent scope when executed, not when defined.
The function body is compiled, and the 'free' variables (not defined in the function itself by assignment), are verified, then bound as closure cells to the function, with the code using an index to reference each cell. pet_function thus has one ...
Delete directories recursively in Java
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You should check out Apache's commons-io. It has a FileUtils class that will do what you want.
FileUtils.deleteDirectory(new File("directory"));
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What's the difference between --general-numeric-sort and --numeric-sort options in gnu sort
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General numeric sort compares the numbers as floats, this allows scientific notation eg 1.234E10 but is slower and subject to rounding error (1.2345678 could come after 1.2345679), numeric sort is just a regular alphabetic sort that knows 10 com...
.NET NewtonSoft JSON deserialize map to a different property name
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Accessing the web page's HTTP Headers in JavaScript
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Change bundle identifier in Xcode when submitting my first app in IOS
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By default, Xcode sets the bundle identifier to the bundle/company identifier that you set during project creation + project name.
This is similar to what you see in the Project > Summary screen.
But you can change this in the Project > Info screen. (This is the Info.plis...
How to delete an SMS from the inbox in Android programmatically?
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"As of Android 1.6, incoming SMS message broadcasts (android.provider.Telephony.SMS_RECEIVED) are delivered as an "ordered broadcast" — meaning that you can tell the system which components should receive the broadcast first."
This means that y...