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In C++, is it still bad practice to return a vector from a function?

... as vectors/arrays—in many programming languages. Is this style now acceptable in C++0x if the class has a move constructor, or do C++ programmers consider it weird/ugly/abomination? ...
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How to calculate moving average using NumPy?

...inciple behind this answer is widely used in image processing (summed area tables they call it), so the issue had to be in the implementation. A good example of being bit by premature optimization, since I kind of recall doing the operation in-place "because it will be more efficient." On the bright...
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What are the most interesting equivalences arising from the Curry-Howard Isomorphism?

... have a few things (assisted by the Wikipedia article, which has some neat tables and such itself): I think that sum types/union types (e.g. data Either a b = Left a | Right b) are equivalent to inclusive disjunction. And, though I'm not very well acquainted with Curry-Howard, I think this demons...
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WiX tricks and tips

... to post-process the generated MSI to change the X,Y fields in the Control table for that particular CheckBox control. The javascript code looks like this: var msiOpenDatabaseModeTransact = 1; var filespec = WScript.Arguments(0); var installer = new ActiveXObject("WindowsInstaller.Installer"); va...
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Hash collision in git

...wice. But "surprisingly few" is a very relative term here. Wikipedia has a table on the probability of Birthday Paradox collisions. There is no entry for a 40 character hash. But an interpolation of the entries for 32 and 48 characters lands us in the range of 5*1022 git commits for a 0.1% probabil...
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Difference between Char.IsDigit() and Char.IsNumber() in C#

...DecimalDigitNumber. I wrote this bit of code to indicate which is which: (Table isn't full due to allowed post size, but you should be able to generate it and it's only for example purposes anyway) [Test] public void IsNumberTest() { var numberLikes = new[] { UnicodeCategory.De...
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Ways to save Backbone.js model data?

...er side. This could just be the ID of your donut resource in your database table. If I make a PUT to that URI with new data, I'd be updating it, saving over it. And if I DELETE to that URI, then it would purge it from my system. With POST, since you haven't created a resource yet it won't have an ...
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What is a reasonable code coverage % for unit tests (and why)? [closed]

...o less!” Replied the master in a stern voice, pounding his fist on the table. The third programmer smiled, bowed, and left. ... After this last reply, a young apprentice approached the great master: “Great master, today I overheard you answer the same question about ...
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Releasing memory in Python

...le. The costs are: Process startup is kind of slow on some platforms, notably Windows. We're talking milliseconds here, not minutes, and if you're spinning up one child to do 300 seconds' worth of work, you won't even notice it. But it's not free. If the large amount of temporary memory you use r...
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In plain English, what does “git reset” do?

... though. In particular, if you take the time to carefully read them, those tables detailing states of files in index and work tree for all the various options and cases are very very helpful. (But yes, they're very dense - they're conveying an awful lot of the above information in a very concise for...