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Virtual functions and performance - C++
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A good rule of thumb is:
It's not a performance problem until you can prove it.
The use o...
List tables in a PostgreSQL schema
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Clodoaldo NetoClodoaldo Neto
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Non-static variable cannot be referenced from a static context
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Static fields and methods are connected to the class itself and not its instances. If you have ...
Why are C character literals ints instead of chars?
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Tony DelroyTony Delroy
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How do I write stderr to a file while using “tee” with a pipe?
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That works fine if you want both stdout (channel 1) and stderr (channel 2) logged to the same file (a single file containing the mixture of...
Why aren't ◎ܫ◎ and ☺ valid JavaScript variable names?
...5\u0A36\u0A38\u0A39\u0A59-\u0A5C\u0A5E\u0A72-\u0A74\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8\u0AAA-\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABD\u0AD0\u0AE0\u0AE1\u0B05-\u0B0C\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-\u0B39\u0B3D\u0B5C\u0B5D\u0B5F-\u0B61\u0B71\u0B83\u0B85-\u0B8A\u0B8E-\u0B90\u0...
UnboundLocalError on local variable when reassigned after first use
... Some compilers are more honest about it and say "error on or around line XXX", but this one doesn't.
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Displaying the build date
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AbdurrahimAbdurrahim
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How find all unused classes in Intellij Idea?
... of IDEs because it can't be used safely the way that other "remove unused XXX" refactorings can.
The unused declarations IDEA (and AFAIK, NetBeans) looks for are for private members and local variables: things that are not accessible, even dynamically, from outside that class or scope. (Well, at l...
How to validate an email address in JavaScript
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@ImmortalFirefly, the regex you provided will actually match name@again@example.com. Try pasting your line into a JavaScript console. I bel...