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What happens if you static_cast invalid value to enum class?
...ted underlying type.
Note: The underlying type of a scoped enum w/o enum-base is int. For unscoped enums the underlying type is implementation-defined, but shall not be larger than int if int can contain the values of all enumerators.
For an unscoped enumeration, this leads us to /1
A prvalue...
I want to get the type of a variable at runtime
... is the same class as b
A ClassTag is limited in that it only covers the base class, but not its type parameters. That is, the ClassTag for List[Int] and List[String] is the same, List. If you need type parameters, then you must use a TypeTag instead. A TypeTag however, cannot be obtained from a v...
Can I combine :nth-child() or :nth-of-type() with an arbitrary selector?
...d() and :nth-of-type() work. Unfortunately, there is currently no selector-based solution as yet because Selectors does not provide a way to match the nth child that matches an arbitrary selector based on a pattern such as odd-numbered, even-numbered or any an+b where a != 1 and b != 0. This extends...
Is mathematics necessary for programming? [closed]
... process of programming and mathematics are very similar. You begin with a base of known things (axioms, previously proven theories) and try to get to someplace new. You cannot skip steps. If you do skip steps, then you are required to fill in the blanks. It's a critical thought process that makes t...
Why was the arguments.callee.caller property deprecated in JavaScript?
...ntion there are major refactoring dangers, which only increase as the code base size increases. Unit tests are a line of defense, and I use them, but they're still not an answer that really satiates me personally regarding this hardcoding issue.
– Jasmine Hegman
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What is the difference between JDK dynamic proxy and CGLib?
...able to call the correct constructor with the right args. Unlike interface based proxy which don't care about constructors. This makes working with CGLib proxies less "automatic" than JDK proxies. Another distinction is in the "stack" cost. A JDK proxy always incurs extra stack frames per call while...
Referencing a string in a string array resource with xml
...on you want. Otherwise android doesnt provides direct XML indexing for xml based arrays.
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How many concurrent requests does a single Flask process receive?
...building an app with Flask, but I don't know much about WSGI and it's HTTP base, Werkzeug. When I start serving a Flask application with gunicorn and 4 worker processes, does this mean that I can handle 4 concurrent requests?
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How to overload functions in javascript?
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I am using a bit different overloading approach based on arguments number.
However i believe John Fawcett's approach is also good.
Here the example, code based on John Resig's (jQuery's Author) explanations.
// o = existing object, n = function name, f = function.
fun...
Does const mean thread-safe in C++11?
...l to set_size on a given rect, then area could end up computing its result based on an old width and a new height (or even on garbled values).
But that is alright, rect isn't const so its not even expected to be thread-safe after all. An object declared const rect, on the other hand, would be thread...