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Fastest way to reset every value of std::vector to 0
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Looking at the assembly output, gcc actually unrolls this loop into using the mmx registers to dump in 16 bytes at a time until it gets close to the end. I'd say that's pretty fast. The memset version jumps to memset, which I'm guessing is about as fast. I'd use yo...
random.seed(): What does it do?
...andom number generators work by performing some operation on a value. Generally this value is the previous number generated by the generator. However, the first time you use the generator, there is no previous value.
Seeding a pseudo-random number generator gives it its first "previous" value. Each...
zsh compinit: insecure directories
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This is definitely the best solution for me. I installed zsh and zsh-completions with Homebrew, so obviously did not want to change it to be owned by root.
– katy lavallee
Oct 18 '16 at 18:10
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How to remove an element from an array in Swift
...ou can filter on any predicate you can think up. e.g. you could filter out all animals that end in an "s".
– Womble
Jul 15 '19 at 4:07
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Linear Layout and weight in Android
...ntations.
Now I want to try it for the first time but it isn't working at all.
18 Answers
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How to use ConcurrentLinkedQueue?
...lready in ConcurrentLinkedQueue, just use them. ConcurrentLinkedQueue does all the locking and other operations you need internally; your producer(s) adds data into the queue, and your consumers poll for it.
First, create your queue:
Queue<YourObject> queue = new ConcurrentLinkedQueue<YourO...
“Add as Link” for folders in Visual Studio projects
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@mo. your answer adds links to all files in the project root, sometimes it is inconvenient. %(RecursiveDir) should changed to some link folder name: for example to link source folder from wp7 project 'MyMainProject' in another project in this solutio...
Have a div cling to top of screen if scrolled down past it [duplicate]
...ching a handler to the window.scroll event
// Cache selectors outside callback for performance.
var $window = $(window),
$stickyEl = $('#the-sticky-div'),
elTop = $stickyEl.offset().top;
$window.scroll(function() {
$stickyEl.toggleClass('sticky', $window.scrollTop()...
“Cannot evaluate expression because the code of the current method is optimized” in Visual Studio 20
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I had this issue in VS2012, however the solution and all projects were set to Debug with no optimization. I clean solution/rebuild fixed it for me.
– saarp
Feb 13 '13 at 19:52
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Store pictures as files or in the database for a web app?
...l include a lot of pictures and hopefully a fair amount of traffic. I do really want to achieve performance.
10 Answers
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