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How to check for file lock? [duplicate]
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What if between return false and your attempt to open the file again something else snatches it up? Race conditions ahoy!
– jocull
Apr 1 '14 at 20:17
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How to search by key=>value in a multidimensional array in PHP
...cat 1') {
$outputArray[] = iterator_to_array($subArray);
}
}
What's great is that basically the same code will iterate through a directory for you, by using a RecursiveDirectoryIterator instead of a RecursiveArrayIterator. SPL is the roxor.
The only bummer about SPL is that it's badly...
Get controller and action name from within controller?
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@MetalPhoenix, can you clarify a bit what use case you are talking about? OP does not need to assign controller or action - they just need to understand, in generic way, what are the controller and action currently being processed.
– Andrei...
Measuring function execution time in R
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what unit is this measured in? for example I just ran system.time(result <- myfunction(with, arguments)) and got 187.564 as an output- is that in seconds or what?
– zsad512
Sep 14 '17...
Why am I getting a NoClassDefFoundError in Java?
I am getting a NoClassDefFoundError when I run my Java application. What is typically the cause of this?
27 Answers
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Scroll back to the top of scrollable div
...roducible test case showing us your problem (e.g. on jsfiddle.net) and say what OS/browser/version you're experiencing this on.
– Phrogz
May 24 '12 at 20:09
2
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Scrolling down both parts of a split-window at the same time in Vim
...im -O file1 file2 -c 'windo set scb!'
-O = open side by side.
-c = what follows in quotes is treated as a vim option.
'windo' = apply to all panels.
'scb' = shorthand for scrollbind. Saves some typing, but the two are interchangeable.
'!' = toggle. This way you can use the same comm...
Is there a difference between copy initialization and direct initialization?
...g a temporary object (C++<=14) to just specifying the initialization of whatever object this expression is initialized to (loosely speaking) in C++17. These objects (called "result objects") are the variables created by a declaration (like a1), artificial objects created when the initialization e...
When to use Preorder, Postorder, and Inorder Binary Search Tree Traversal strategies
...-Order, and Post-Order Traversal Strategy
Before you can understand under what circumstances to use pre-order, in-order and post-order for a binary tree, you have to understand exactly how each traversal strategy works. Use the following tree as an example.
The root of the tree is 7, the left m...
How do malloc() and free() work?
...2 bytes e.g. 4KB).
So returning 40 Bytes to the OS will just not work. So what does free do?
Free will put the memory block in its own free block list. Normally it also tries to meld together adjacent blocks in the address space. The free block list is just a circular list of memory chunks which h...