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What is “:-!!” in C code?
...to fail the build.
The macro is somewhat misnamed; it should be something more like BUILD_BUG_OR_ZERO, rather than ...ON_ZERO. (There have been occasional discussions about whether this is a confusing name.)
You should read the expression like this:
sizeof(struct { int: -!!(e); }))
(e): Comput...
npm command to uninstall or prune unused packages in Node.js
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Eclipse “Invalid Project Description” when creating new project from existing source
...s problem such as this Attempting Android Notepad Tutorial - Exercise 1 - More problems , but none of the answers worked for me!
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Is it safe to delete a void pointer?
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How can I divide two integers to get a double?
... So, the following would work too:
double num3 = (double)num1/num2;
For more information see:
Dot Net Perls
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Can a class extend both a class and implement an Interface
...der.
class database extends mysqli implements databaseInterface { ... }
Moreover, a class can implement more than one interface. Just separate 'em with commas.
However, I feel obliged to warn you that extending mysqli class is incredibly bad idea. Inheritance per se is probably the most overrate...
Removing duplicate rows in vi?
...)\(\n\1\)\+$/\1/
It searches for any line immediately followed by one or more copies of itself, and replaces it with a single copy.
Make a copy of your file though before you try it. It's untested.
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What does [object Object] mean?
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More generally I'd be concerned that objects may not HAVE an id attribute; for example, if you got an object list just using a css selector like $('.someStyleClass'). To be clear on the identity of whatever object you're deal...
What are the differences between various threading synchronization options in C#?
...e wrong.. Let me try.. Revision#2 of my orig answer.. with a little bit of more understanding. Thanks for making me read :)
lock(obj)
is a CLR construct that for (intra-object?) thread synchronization. Ensures that only one thread can take ownership of the object's lock & enter the locked bl...