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In C/C++ what's the simplest way to reverse the order of bits in a byte?

...ell: Well, to write the script one still needs another solution, which was my point – a lookup table is simple to use but not simple to create. (Except by copying a ready-made lookup table, but then one might just as well copy any solution.) For example, if the “simplest” solution is considere...
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chart.js load totally new data

...h this First I tried .clear() then I tried .destroy() and I tried setting my chart reference to null What finally fixed the issue for me: deleting the <canvas> element and then reappending a new <canvas> to the parent container There's a million ways to do this: var resetCanvas = f...
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What is the purpose of using -pedantic in GCC/G++ compiler?

... I use it all the time in my coding. The -ansi flag is equivalent to -std=c89. As noted, it turns off some extensions of GCC. Adding -pedantic turns off more extensions and generates more warnings. For example, if you have a string literal longer ...
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deleting rows in numpy array

... By the way, user333700's method (from his comment) was slightly faster in my tests, though it boggles my mind why. share | improve this answer | follow | ...
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Bootstrap table striped: How do I change the stripe background colour?

With Bootstrap class table-striped , every other row in my table has a background colour equal to #F9F9F9 . How can I change this colour? ...
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How to add spacing between UITableViewCell

... My easy solution using Swift : // Inside UITableViewCell subclass override func layoutSubviews() { super.layoutSubviews() contentView.frame = contentView.frame.inset(by: UIEdgeInsets(top: 10, left: 10, bottom: 10,...
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Gdb print to file instead of stdout

...et logging on You can tell it which file to use. (gdb) set logging file my_god_object.log And you can examine current logging configuration. (gdb) show logging share | improve this answer ...
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Where is Xcode's build folder?

Before Xcode 4 the build used to be created in the root folder of my project. I can no longer find it. 9 Answers ...
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How do I enable standard copy paste for a TextView in Android?

... Actually it seems to be a bug. Shows up on my Samsung 4.2.2 device. Nexus7 and Nexus10 works. code.google.com/p/android/issues/detail?id=26008 – powder366 Mar 9 '13 at 14:17 ...
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How to check whether a file or directory exists?

I want to check the existence of file ./conf/app.ini in my Go code, but I can't find a good way to do that. 5 Answers ...