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Are multiple `.gitignore`s frowned on?

....gitignore file apply recursively to the (sub)directory the file is in and all its subdirectories, unless pattern contains '/' (so e.g. pattern name applies to any file named name in given directory and all its subdirectories, while /name applies to file with this name only in given directory). ...
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What is the advantage of GCC's __builtin_expect in if else statements?

... I guess it should be something like: cmp $x, 0 jne _foo _bar: call bar ... jmp after_if _foo: call foo ... after_if: You can see that the instructions are arranged in such an order that the bar case precedes the foo case (as opposed to the C code). This can utilise the CPU ...
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Change key pair for ec2 instance

...post: Stop the running EC2 instance Detach its /dev/xvda1 volume (let's call it volume A) - see here Start new t1.micro EC2 instance, using my new key pair. Make sure you create it in the same subnet, otherwise you will have to terminate the instance and create it again. - see here Attach volume A...
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What is a semaphore?

...s bouncers at a nightclub. There are a dedicated number of people that are allowed in the club at once. If the club is full no one is allowed to enter, but as soon as one person leaves another person might enter. It's simply a way to limit the number of consumers for a specific resource. For exampl...
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@RequestBody and @ResponseBody annotations in Spring

... There is a whole Section in the docs called 16.3.3.4 Mapping the request body with the @RequestBody annotation. And one called 16.3.3.5 Mapping the response body with the @ResponseBody annotation. I suggest you consult those sections. Also relevant: @RequestBody ...
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Identifying and removing null characters in UNIX

...l with I/O redirection (<, >, …) anywhere in the command line, actually. share | improve this answer | follow | ...
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How to change file encoding in NetBeans?

... In NetBeans model all project files should have the same encoding. The answer is that you can't do that in Netbeans. If you are working in Netbeans you should consider to convert all files to a single encoding using other tools. ...
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How to reposition Chrome Developer Tools

... If you can't open the dock at all, try Ctrl+Shift+I -- but if your window is a popup, I don't think docking even works. – Noumenon Oct 4 '16 at 13:35 ...
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How do you round a number to two decimal places in C#?

...ults to MidPointRounding.ToEven (aka "Bankers Rounding") is because the we all learned to round in school where .5 rounds up causes too much rounding up. This is a problem when dealing with money, tax calculations, etc. – asporter Nov 11 '16 at 19:36 ...
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How do I list the functions defined in my shell?

I can type alias to show a list of all the aliases. 8 Answers 8 ...