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What are all the common undefined behaviours that a C++ programmer should know about? [closed]

...amount greater than or equal to the number of bits in the number (e.g. int64_t i = 1; i <<= 72 is undefined) Types, Cast and Const Casting a numeric value into a value that can't be represented by the target type (either directly or via static_cast) Using an automatic variable before it has ...
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Convert a PHP object to an associative array

... 1442 Just typecast it $array = (array) $yourObject; From Arrays: If an object is converted t...
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Configure Microsoft.AspNet.Identity to allow email address as username

... false }? Thanks. – PussInBoots Nov 4 '13 at 12:39 29 In your AccountController, in the public Ac...
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Does Typescript support the ?. operator? (And, what's it called?)

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How to do exponential and logarithmic curve fitting in Python? I found only polynomial fitting

... 19, 30, 35, 51]) >>> numpy.polyfit(numpy.log(x), y, 1) array([ 8.46295607, 6.61867463]) # y ≈ 8.46 log(x) + 6.62 For fitting y = AeBx, take the logarithm of both side gives log y = log A + Bx. So fit (log y) against x. Note that fitting (log y) as if it is linear will emphasize sm...
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Replace a string in shell script using a variable

... 147 If you want to interpret $replace, you should not use single quotes since they prevent variable...
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Installing Bootstrap 3 on Rails App

... | edited Dec 4 '17 at 6:40 Patricio Sard 1,69322 gold badges1515 silver badges4444 bronze badges ...
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How to get a random value from dictionary in python

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Is there a Max function in SQL Server that takes two values like Math.Max in .NET?

... SteveC 12.8k2020 gold badges8282 silver badges143143 bronze badges answered Sep 23 '08 at 23:03 Kevin CrumleyKevin Crumley 5,...
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What is the best way to convert seconds into (Hour:Minutes:Seconds:Milliseconds) time?

... For .Net <= 4.0 Use the TimeSpan class. TimeSpan t = TimeSpan.FromSeconds( secs ); string answer = string.Format("{0:D2}h:{1:D2}m:{2:D2}s:{3:D3}ms", t.Hours, t.Minutes, t.Seconds, ...