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Is errno thread-safe?

...ariable is thread-specific. POSIX requires that errno be threadsafe. See http://www.unix.org/whitepapers/reentrant.html In POSIX.1, errno is defined as an external global variable. But this definition is unacceptable in a multithreaded environment, because its use can result in nondete...
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Do I have to guard against SQL injection if I used a dropdown?

...age, my options include disabling that behaviour, or just writing a custom HTTP request to your server which imitates this form submission anyway. There's a tool called curl used for exactly that, and I think the command to submit this SQL injection anyway would look something like this: curl --dat...
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How do I achieve the theoretical maximum of 4 FLOPs per cycle?

...ing of multiplies and adds... The full project can be found on my GitHub: https://github.com/Mysticial/Flops Warning: If you decide to compile and run this, pay attention to your CPU temperatures!!!Make sure you don't overheat it. And make sure CPU-throttling doesn't affect your results! Further...
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How can I find where I will be redirected using cURL?

... @MattGibson when i use $httpCode = curl_getinfo($handle, CURLINFO_HTTP_CODE); with CURLOPT_FOLLOWLOCATION set to true what will be the httpcode. I mean will it be for the first url or for the redirect url – Manigandan Arjunan ...
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Parse DateTime string in JavaScript

...ate); $('#date1').text($.datepicker.formatDate('M d, yy', parsedDate)); http://jsfiddle.net/mescalito2345/ND2Qg/14/ share | improve this answer | follow | ...
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How does python numpy.where() work?

...but it has many other uses as well. I have never used it with 2D arrays. http://docs.scipy.org/doc/numpy/reference/generated/numpy.where.html New Answer It seems that the person was asking something more fundamental. The question was how could YOU implement something that allows a function (such...
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Optional query string parameters in ASP.NET Web API

... controller action with just a single parameter. For more information see: http://www.asp.net/web-api/overview/formats-and-model-binding/parameter-binding-in-aspnet-web-api public class BooksController : ApiController { // GET /api/books?author=tolk&title=lord&isbn=91&somethingels...
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Catch an exception thrown by an async void method

...nchronizationContext that was active when the async void method started. - https://msdn.microsoft.com/en-us/magazine/jj991977.aspx Note that using Wait() may cause your application to block, if .Net decides to execute your method synchronously. This explanation http://www.interact-sw.co.uk/iangbl...
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Make a link in the Android browser start up my app?

...ndroid.intent.category.BROWSABLE" /> <data android:scheme="http" android:host="market.android.com" android:path="/search" /> </intent-filter> Alternatively, there is the "intent:" scheme. This allows you to describe nearly any Intent as a URI, whic...
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Linux: copy and create destination dir if it does not exist

...can do this with the --parents flag of cp. From the info page (viewable at http://www.gnu.org/software/coreutils/manual/html_node/cp-invocation.html#cp-invocation or with info cp or man cp): --parents Form the name of each destination file by appending to the target directory a slash a...