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In C/C++ what's the simplest way to reverse the order of bits in a byte?
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35 Answers
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PostgreSQL - Rename database
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answered Sep 27 '08 at 15:03
bmdhacksbmdhacks
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Change text color based on brightness of the covered background area?
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Interesting resources for this:
W3C - Ensure that foreground and background color combinations provide sufficient contrast
Calculating the Perceived Brightness of a Color
Here's the W3C algorithm (with JSFiddle demo too):
const rgb = [255, 0, 0];
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Nginx not picking up site in sites-enabled?
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Python: Check if one dictionary is a subset of another larger dictionary
... think of: d1.viewitems() <= d2.viewitems(). Timeit runs showed over a 3x performance improvement. If not hashable, even using iteritems() instead of items() leads to about a 1.2x improvement. This was done using Python 2.7.
– Chad
Mar 29 '16 at 21:47
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Proper way to wait for one function to finish before continuing?
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answered Feb 3 '14 at 1:24
Matt WayMatt Way
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AddBusinessDays and GetBusinessDays
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Latest attempt for your first function:
public static DateTime AddBusinessDays(DateTime date, ...
Is gcc std::unordered_map implementation slow? If so - why?
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Difference between decimal, float and double in .NET?
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float and double are floating binary point types. In other words, they represent a number like...
How to convert a unix timestamp (seconds since epoch) to Ruby DateTime?
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DateTime.strptime can handle seconds since epoch. The number must be converted to a string:
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