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Why are elementwise additions much faster in separate loops than in a combined loop?

...ame cache way. However, Intel processors have had 8-way L1 cache associativity for a while. But in reality, the performance isn't completely uniform. Accessing 4-ways is still slower than say 2-ways. EDIT: It does in fact look like you are allocating all the arrays separately. Usually when such larg...
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Add a tooltip to a div

... For the basic tooltip, you want: <div title="This is my tooltip"> For a fancier javascript version, you can look into: https://jqueryhouse.com/best-jquery-tooltip-plugins/ The above link gives you 25 options for tooltips. ...
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Check if a variable is of function type

...efficient, but the best way to check, when efficiency isn't an issue, is written on underscore's page linked by @Paul Rosania. Inspired by underscore, the final isFunction function is as follows: function isFunction(functionToCheck) { return functionToCheck && {}.toString.call(functionToC...
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Cleanest way to build an SQL string in Java

...above query: update_query=UPDATE user_table SET name=? WHERE id=? Then with the help of a simple utility class: public class Queries { private static final String propFileName = "queries.properties"; private static Properties props; public static Properties getQueries() throws SQLE...
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What is the difference between “int” and “uint” / “long” and “ulong”?

I know about int and long (32-bit and 64-bit numbers), but what are uint and ulong ? 5 Answers ...
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Why do you program in assembly? [closed]

... across this sentence in a blog. I don't really think the source matters (it's Haack if you really care) because it seems to be a common statement. ...
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Get all object attributes in Python? [duplicate]

...ed to show interesting attributes, rather than strictly all; for instance it doesn't show attributes inherited through a metaclass, or it may be overridden with a __dir__ method. – SingleNegationElimination Jul 30 '11 at 23:11 ...
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Deleting queues in RabbitMQ

I have a few queues running with RabbitMQ. A few of them are of no use now, how can I delete them? Unfortunately I had not set the auto_delete option. ...
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Unable to simultaneously satisfy constraints, will attempt to recover by breaking constraint

Below is the error message I receive in the debug area. It runs fine and nothing is wrong except that I receive this error. Would this prevent apple accepting the app? How do I fix it? ...
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Try catch statements in C

.../catch blocks existent in another languages. Googled for a while this but with no result. From what I know, there is not such a thing as try/catch in C. However, is there a way to "simulate" them? Sure, there is assert and other tricks but nothing like try/catch, that also catch the raised excepti...