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Redefining NULL

... The C standard does not require null pointers to be at the machine's address zero. HOWEVER, casting a 0 constant to a pointer value must result in a NULL pointer (§6.3.2.3/3), and evaluating the null pointer as a boolean must be false. Thi...
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Which C++ idioms are deprecated in C++11?

...ays, but the old way is still fine. It's also clear that the new standard doesn't officially deprecate very much, for backward compatibility reasons. So the question that remains is: ...
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Trigger change event of dropdown

... This does not trigger the change event when the page first loads (as per OP's question) – user3559349 Jan 22 '15 at 10:54 ...
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How to center horizontally div inside parent div

... @Bakhtiyor: as far as I remember, it does. What issues are you seeing? you might want to pop open a new question if there's some specific issue you're having which hasn't been touched on before. I don't have access to IE6 to check with though. ...
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Why should I avoid std::enable_if in function signatures

... makes it not very robust. In short, when it works it works, but when it doesn't it can be very hard to debug. A very good alternative is to use tag dispatching, i.e. to delegate to an implementation function (usually in a detail namespace or in a helper class) that receives a dummy argument based...
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Eclipse interface icons very small on high resolution screen in Windows 8.1

... it would not be technically very hard to just scale things up like how VS does. I thought there would be an option I could set to launch Eclipse in that mode. I couldn't find it though. After all, I ended up lowering the screen resolution to 1/4 (from 2560x1600 to 1280x800) with no magnification (...
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how to get the current working directory's absolute path from irb

... Note: this does not return the location of the current file. In order to do that, see the answers below. This only returns the current working directory of the shell which is calling the script (just like pwd), which might be somewhere ...
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How to run Maven from another directory (without cd to project dir)?

... As dunni says, this doesn't work. The current dir is where you are. U're just using a pom in another dir. Maven doesn't support this. – mist Nov 27 '16 at 12:21 ...
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How to pass variable from jade template file to a script file?

...object in inline JS code (client-side)? I'm having the same problem. Jade does not pass local variables in (or do any templating at all) to javascript scripts, it simply passes the entire block in as literal text. If you use the local variables 'address' and 'port' in your Jade file above the scrip...
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Why is $$ returning the same id as the parent process?

... $ Expands to the process ID of the shell does it tho? echo $ just echoes the literal $. – Alexander Mills May 31 '19 at 20:47 ...