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Multiprocessing - Pipe vs Queue
...='__main__':
for count in [10**4, 10**5, 10**6]:
# Pipes are unidirectional with two endpoints: p_input ------> p_output
p_output, p_input = Pipe() # writer() writes to p_input from _this_ process
reader_p = Process(target=reader_proc, args=((p_output, p_input),))
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What GRANT USAGE ON SCHEMA exactly do?
...o create for the first time a Postgres database, so this is probably a stupid question. I assigned basic read-only permissions to the db role that must access the database from my php scripts, and I have a curiosity: if I execute
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Transitioning from Windows Forms to WPF
...erms of UI components, not data objects. In addition, binding in WinForms didn't always exist in the state it does now, so many developers that grew up with WinForms, or who are used to other technologies that don't use bindings, will often not identify this key difference when switching to a bound ...
Different types of thread-safe Sets in Java
...er accesses which are running at this time continue with the old array, avoiding necessity of synchronization between readers and writers (though writing itself needs to be synchronized). The normally fast set operations (especially contains()) are quite slow here, as the arrays will be searched in ...
std::vector versus std::array in C++
...t grows and shrinks automatically if elements are added or removed. It provides all the hooks (begin(), end(), iterators, etc) that make it work fine with the rest of the STL. It also has several useful methods that let you perform operations that on a normal array would be cumbersome, like e.g. ins...
What is the difference between active and passive FTP?
...son I say this is that, if this is not true (my argument) then the client side even if it is behind a firewall can always create two fire-wall rules one for the outgoing connection and one for the incoming connection.
– arun.raj.mony
Oct 25 '13 at 5:35
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What is the correct answer for cout
...<(std::operator<<(std::cout, a++), a);
C++ guarantees that all side effects of previous evaluations will have been performed at sequence points. There are no sequence points in between function arguments evaluation which means that argument a can be evaluated before argument std::operator...
What would cause an algorithm to have O(log log n) complexity?
...of a problem that yields runtimes of the form O(log log n). Instead of dividing the input in half at each layer, what happens if we take the square root of the size at each layer?
For example, let's take the number 65,536. How many times do we have to divide this by 2 until we get down to 1? If w...
What’s the difference between ScalaTest and Scala Specs unit test frameworks?
...Driven Development (BDD), whereas ScalaTest is more general. ScalaTest provides traits that you can mix together to get the behavior you prefer in your test classes, including BDD, and you can also easily define your own behavior if you want something different.
ScalaTest supports BDD through its S...
Convert a Git folder to a submodule retrospectively?
... useful as a standalone component (a library, perhaps). If you've had that idea from early on, then there's a fair chance that most of that code is in its own folder.
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