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John Carmack's Unusual Fast Inverse Square Root (Quake III)
...) , including a strange 0x5f3759df constant. See the code below. Can someone explain line by line what exactly is going on here and why this works so much faster than the regular implementation?
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How do I convert an object to an array?
..., you can cast using (array) or there's get_object_vars, which Benoit mentioned in
his answer.
// Cast to an array
$array = (array) $object;
// get_object_vars
$array = get_object_vars($object);
They work slightly different from each other. For example, get_object_vars will return an array ...
C dynamically growing array
...hat is). There's no built-in dynamic array in C, you'll just have to write one yourself. In C++, you can use the built-in std::vector class. C# and just about every other high-level language also have some similar class that manages dynamic arrays for you.
If you do plan to write your own, here's so...
No newline at end of file
...tell the difference between a file where there is a newline at the end and one where is not. Diff has to output a newline anyway, or the result would be harder to read or process automatically.
Note that it is a good style to always put the newline as a last character if it is allowed by the file f...
Comparing HTTP and FTP for transferring files
What are the advantages (or limitations) of one over the other for transferring files over the Internet?
5 Answers
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Why does my 'git branch' have no master?
...a git init, it will have master checked out by default.
However, if you clone a repository, the default branch you have is whatever the remote's HEAD points to (HEAD is actually a symbolic ref that points to a branch name). So if the repository you cloned had a HEAD pointed to, say, foo, then your ...
PHP: Storing 'objects' inside the $_SESSION
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Very few answers make me laugh out loud. This one did. Bravo +1
– toddmo
Mar 27 '18 at 18:21
add a comment
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.toArray(new MyClass[0]) or .toArray(new MyClass[myList.size()])?
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Very interesting comment. I'm surprised no one has commented on this. I guess it's because it contradicts the other answers here, as far as speed. Also interesting to note, this guys reputation is almost higher than all the other answers (ers) combined.
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HTTP URL Address Encoding in Java
My Java standalone application gets a URL (which points to a file) from the user and I need to hit it and download it. The problem I am facing is that I am not able to encode the HTTP URL address properly...
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Passing a Bundle on startActivity()?
...y to pass a bundle to the activity that is being launched from the current one? Shared properties?
6 Answers
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