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Rounding up to next power of 2
...mon: it's the portable solution. There's no common efficient algorithm for all architectures
– phuclv
Dec 6 '13 at 9:27
5
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In-place type conversion of a NumPy array
...Py array of int32 , how do I convert it to float32 in place ? So basically, I would like to do
6 Answers
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Checking if an Android application is running in the background
...Pause();
MyApplication.activityPaused();
}
Update
ActivityLifecycleCallbacks were added in API level 14 (Android 4.0). You can use them to track whether an activity of your application is currently visible to the user. Check Cornstalks' answer below for the details.
The wrong one
I used to s...
Need some clarification about beta/alpha testing on the developer console
...rs. It means you have to put their Gmail into the testers list. This is usually for employees.
2. Alpha testing - Same as internal testing, but this time you can send your app to your friends, families, or on your smartphones.
3. Beta testing - This is a serious matter, this is public testing. But p...
MySQL select 10 random rows from 600K rows fast
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Yes, if you have potentially big gaps in ID's then the chance of your lowest ID's being picked randomly is much lower than your high IDs. In fact the chance that the first ID after the biggest gap getting picked is actually the highest. Therefore th...
CALayers didn't get resized on its UIView's bounds change. Why?
...you sure? it sounds like you are describing frame. bounds should, theoretically, always have 0,0 as its origin.
– griotspeak
Feb 11 '12 at 2:32
3
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How can I get the corresponding table header (th) from a table cell (td)?
...$(function($) {
"use strict";
// Only part of the demo, the thFromTd call does the work
$(document).on('mouseover mouseout', 'td', function(event) {
var td = $(event.target).closest('td'),
th = thFromTd(td);
th.parent().find('.highlight').removeClass('highlight');
if (even...
How to get the full url in Express?
...ay or may not be the correct value as compared to req.url.
Combine those all together to reconstruct the absolute URL.
var fullUrl = req.protocol + '://' + req.get('host') + req.originalUrl;
share
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Should arrays be used in C++?
...to use traditional C arrays in C++, or should they be avoided, just like malloc ?
11 Answers
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How does LMAX's disruptor pattern work?
...as an extremely large array to take advantage of cache locality, eliminate allocation of new memory.
5 Answers
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