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Java to Clojure rewrite

... STM transactional behaviour by wrapping any code in a (dosync ...) block. Select the right overall web framework - Clojure has quite a few already but I'd strongly recommend Ring - see this excellent video "One Ring To Bind Them" plus either Fleet or Enlive or Hiccup depending on your templating p...
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Is Using .NET 4.0 Tuples in my C# Code a Poor Design Decision?

...pport for tuples in C#: private var GetDesserts() { return _icecreams.Select( i => new { icecream = i, topping = new Topping(i) } ); } public void Eat() { foreach (var dessert in GetDesserts()) { dessert.icecream.AddTopping(dessert.topping); dessert.Eat()...
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Why does the MongoDB Java driver use a random number generator in a conditional?

...nges of the server state, and not each its observation, let alone a random selection of 10% such observations. Yes, that takes just a little bit more effort, so let's see some. I can only hope that all this evidence of incompetence, accumulated from inspecting just three lines of code, does not sp...
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Elastic search, multiple indexes vs one index and types for different data sets?

... points to consider: number of shards can be customized per solution you select. You may have one index with 15 primary shards, or split it to 3 indexes for 5 shards - performance perspective won't change (assuming data are distributed equally) think about data usage. Ie. if you use kibana to visu...
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How can I know which parts in the code are never used?

...instead of exporting (using e.g. -fvisibility=hidden), and then explicitly select the exported functions that you need to export. share | improve this answer | follow ...
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How do I find Waldo with Mathematica?

...at should have Waldo in it. Exclude all other areas (e.g., for each area, select a circle twice as big as the average person size), and then run the process that @Heike laid out with removing all but red, and so on. Any thoughts on how to code this? Edit: Thoughts on how to code this . . . e...
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What are the benefits of learning Vim? [closed]

...o use vi for a sudo edit: $ sudo vi Also, GMail uses vi-ish commands for selecting & moving emails around! You don't have to be a master. Just learn The basics: How to switch from command mode to insert mode i How to switch from insert mode to command mode Esc How to navigate up a li...
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How to work with complex numbers in C?

...=182 "7.3 Complex arithmetic <complex.h>". Such keyword was probably selected in C99 to not break existing c (C90) programs which implements complex by hand. If <complex.h> is included, complex will be defined as macro, expanded to _Complex. You may be also interested in Derek M. Jones's...
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How to overload std::swap()

... @DaveAbrahams: The partial ordering is to select the function template to specialize when the explicit specialization matches more than one. The ::swap overload you added is more specialized than the std::swap overload for vector, so it captures the call and no spec...
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CSS filter: make color image with transparency white

...ich contains the respective RGBA values for every pixel in the selected region of the context (note i+=4 in the loop) */ for (var i = 0; i < imgData.data.length; i+=4) { imgData.data[i] = 255; //Red, 0-255 imgData.data[i+1] = 255; //Green, 0-255 imgDa...