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How to count the number of set bits in a 32-bit integer?
...iently deal with any usage pattern or values you throw at it.
References:
https://graphics.stanford.edu/~seander/bithacks.html
https://en.wikipedia.org/wiki/Hamming_weight
http://gurmeet.net/puzzles/fast-bit-counting-routines/
http://aggregate.ee.engr.uky.edu/MAGIC/#Population%20Count%20(Ones%20Cou...
How can I check if a URL exists via PHP?
... }
$code = @curl_getinfo($ch, CURLINFO_HTTP_CODE); // note: php.net documentation shows this returns a string, but really it returns an int
@curl_close($ch);
return $code;
}
function getHttpResponseCode_using_getheaders($url, $followredirects = true){
...
How can I use interface as a C# generic type constraint?
...
@StephenHolt: I think think the creators of .NET, in deciding what constraints to allow, were focused on ones that would let generic classes and methods do things with generic types that they otherwise could not, rather than on preventing them from being used in nonsens...
Unicode character as bullet for list-item in CSS
...ul { list-style-type: "*"; }
/* Sets the marker to a "star" character */
https://drafts.csswg.org/css-lists/#text-markers
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XAMPP, Apache - Error: Apache shutdown unexpectedly
...
One thing you can do is to stop the services on port 80 by issuing
net stop http
in a cmd. You'll be asked if you're sure you want to stop those services. I found out that I had a few services I wasn't using and disabled them.
To see who else is using port 80 type in a cmd
netstat -abno
...
android studio 0.4.2: Gradle project sync failed error
...4.3.
Here is the link to the page with a description of how I fixed mine:
https://code.google.com/p/android/issues/detail?id=65219
Hope this helps!
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Why is Multiple Inheritance not allowed in Java or C#?
...he language designers decided not to.
Basically, it seemed that both the .NET and Java designers did not allow multiple inheritance because they reasoned that adding MI added too much complexity to the languages while providing too little benefit.
For a more fun and in-depth read, there are some a...
What's better at freeing memory with PHP: unset() or $var = null
..., but I've recently looked through a few respectable classes found off the net that use $var = null instead.
13 Answers
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Are there other whitespace codes like   for half-spaces, em-spaces, en-spaces etc useful in HTML
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
How to get the connection String from a database
...specify username and password you can adopt from other answers.
Tutorial: https://teusje.wordpress.com/2012/02/21/how-to-test-an-sql-server-connection/
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