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std::vector performance regression when enabling C++11
...nteresting performance regression in a small C++ snippet, when I enable C++11:
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How does Dijkstra's Algorithm and A-Star compare?
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What is the best way to compute trending topics or tags?
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Why does Math.round(0.49999999999999994) return 1?
...n Java 6 (and presumably earlier), round(x) is implemented as floor(x+0.5).1 This is a specification bug, for precisely this one pathological case.2 Java 7 no longer mandates this broken implementation.3
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0.5+0.49999999999999994 is exactly 1 in double precision:
static void print(do...
Why does GCC generate 15-20% faster code if I optimize for size instead of speed?
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By default compilers optimize for "average" processor. Since different processors favor differe...
How to print a number with commas as thousands separators in JavaScript
...ith commas as thousands separators. For example, I want to show the number 1234567 as "1,234,567". How would I go about doing this?
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Replace all non Alpha Numeric characters, New Lines, and multiple White Space with one Space
... [A-Za-z0-9_] word characters (including the underscore)
Example at regex101.com
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How to scale down a range of numbers with a known min and max value
...anel. I want the height and width of each ellipse to be in a range of say 1-30. I have methods that find the minimum and maximum values from my data set, but I won't have the min and max until runtime. Is there an easy way to do this?
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Simple C example of doing an HTTP POST and consuming the response
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how to draw smooth curve through N points using javascript HTML5 canvas?
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