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Replacing a 32-bit loop counter with 64-bit introduces crazy performance deviations with _mm_popcnt_
...the instruction only writes to it, the instruction will wait until dest is ready before executing. This false dependency is (now) documented by Intel as erratum HSD146 (Haswell) and SKL029 (Skylake)
Skylake fixed this for lzcnt and tzcnt.
Cannon Lake (and Ice Lake) fixed this for popcnt.
bsf/bsr h...
Defeating a Poker Bot
...ill certainly make it harder for bots to win at the lower levels. We've already seen a slight shift with the release of PKR, 3D and a more interactive, less hands per hour version of the other sites where multitabling is quite tricky to accomplish for a player.
The problem also suffers from the na...
Best programming based games [closed]
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Actually reading the question makes it clear it's definitely not Core War! Instead it's likely to be either RoboWar, RobotWar or C-Robots.
– Ash
Nov 26 '09 at 10:11
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Delete a key from a MongoDB document using Mongoose
..., callback);
And since version 2.4, if you have an instance of a model already you can do:
doc.field = undefined;
doc.save(callback);
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What's the difference between equal?, eql?, ===, and ==?
...n here, because I think it has some great explanations. I encourage you to read it, and also the documentation for these methods as they're overridden in other classes, like String.
Side note: if you want to try these out for yourself on different objects, use something like this:
class Object
def...
Check if option is selected with jQuery, if not select a default
...on>
</select>
<script type="text/javascript">
$(document).ready(function() {
if (!$("#mySelect option:selected").length) {
$("#mySelect option[value='3']").attr('selected', 'selected');
}
});
</script>
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Fast Bitmap Blur For Android SDK
...y get on Android. Google claims to be "typically 2-3x faster than a multithreaded C implementation and often 10x+ faster than a Java implementation". Renderscript is really sophisticated (using the fastest processing device (GPU, ISP, etc.), etc.) and there is also the v8 support library for it maki...
gem install: Failed to build gem native extension (can't find header files)
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For anyone reading this in 2015: if you happened to install the package ruby2.0, you need to install the matching ruby2.0-dev to get the appropriate Ruby headers. The same goes for ruby2.1 and ruby2.2, etc. For example:
$ sudo apt-get ...
How to disable postback on an asp Button (System.Web.UI.WebControls.Button)
... by setting the onclick is an ugly old way of doing things. I'd recommend reading about unobtrusive javascript. Using a library like jQuery could make your life easier, and the HTML less coupled to your javascript (and jQuery's supported by Microsoft now!)
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Is Haxe worth learning? [closed]
For people out there using Haxe , what makes it useful for you? Reading the website it looks very promising. Does it provide significant portability?
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