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Finding Number of Cores in Java
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@universe blowing up and such : or the machine actually has more than 2,147,483,647 logical threads available ? ;)
– Pierre Henry
Oct 22 '12 at 13:08
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Are custom elements valid HTML5?
...eah, it looks like the documentation and/or the anchoring was rearranged a bit. I've updated the link. The quote in my answer is located near the bottom of the linked-to Extensibility section.
– svidgen
Dec 30 '14 at 18:54
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What character encoding should I use for a HTTP header?
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To expand a bit on a very useful answer: "UTF-8" is the character set, and "Q" means the value will be "quoted-printable". "B" could also be used if you wanted to BASE64-encode the value.
– GargantuChet
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How to make a flat list out of list of lists?
...,2,3],[4,5,6], [7], [8,9]]*99' 'list(chain.from_iterable(l))'. It runs a bit more than twice as fast as the nested list comprehension that's the fastest of the alternatives shown here.
– intuited
Oct 15 '10 at 1:21
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Is it safe to use -1 to set all bits to true?
...e:
unsigned long a = ~0u;
It won't necessarily store a pattern with all bits 1 into a. But it will first create a pattern with all bits 1 in an unsigned int, and then assign it to a. What happens when unsigned long has more bits is that not all of those are 1.
And consider this one, which will f...
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... content, when compared to tags.
• As tested on Windows 8.1 Core 64-bit using:
• IE 11.0.9600.18205
• Firefox 43.0.4
• Chrome 48.0.2564.109 (Official Build) m (32-bit)
• Opera 35.0.2066.92
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How to add column if not exists on PostgreSQL?
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This approach (EXCEPTION) is a bit more general, and can be employed for tasks which have no IF NOT EXISTS syntax - for example ALTER TABLE ... ADD CONSTRAINT.
– Tomasz Gandor
Apr 16 '19 at 9:51
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Recursive Lock (Mutex) vs Non-Recursive Lock (Mutex)
... functions by themselves need to lock the mutex, then recursive mutex is a win-win.
For any other case (solving just bad coding, using it even in different objects) is clearly wrong!
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improv...
Why can't I define a default constructor for a struct in .NET?
...if we're about to fill in the array with real values.
EDIT: (Answering a bit more of the question) The parameterless constructor isn't created by the compiler. Value types don't have to have constructors as far as the CLR is concerned - although it turns out it can if you write it in IL. When you ...