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How accurately should I store latitude and longitude?

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Mongodb Explain for Aggregation framework

...nt feature requests to watch/upvote in the MongoDB issue tracker regarding more detailed execution stats to help optimize/profile aggregation pipelines: SERVER-19758: Add "executionStats" and "allPlansExecution" explain modes to aggregation explain SERVER-21784: Track execution stats for each aggr...
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C default arguments

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Generating a random & unique 8 character string using MySQL

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How to use glOrtho() in OpenGL?

...s start from the bottom left corner of the window. So by flipping, I get a more conventional (0,0) starting at the top left corner of the window rather. Note that the Z values are clipped from 0 to 1. So be careful when you specify a Z value for your vertex's position, it will be clipped if it fall...
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nginx - client_max_body_size has no effect

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Is the safe-bool idiom obsolete in C++11?

...em and to replace all the safe-bool stuff with something a lot cleaner and more logical. share | improve this answer | follow | ...
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how to compare two elements in jquery [duplicate]

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What is std::move(), and when should it be used?

... compiler that the programmer doesn't care what happens to that object any more. i.e. it gives permission to other parts of the software to move from the object, but it doesn't require that it be moved. In fact, the recipient of an rvalue reference doesn't have to make any promises about what it wil...
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What are the disadvantages to declaring Scala case classes?

...ompiles without warning. As a subclass of Product, case classes can't have more than 22 parameters No real workaround, except to stop abusing classes with this many params :) Also... One other restriction sometimes noted is that Scala doesn't (currently) support lazy params (like lazy vals, but as p...