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Kotlin secondary constructor
...defined in a companion object
Sometimes you want your constructor private and only a factory method available to clients. For now this is only possible with a factory method defined in a companion object:
class C private (s: Int) {
companion object {
fun new(s: String) = C(s.length)
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C# - How to get Program Files (x86) on Windows 64 bit
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Yes. It will return c:\program files on x86 and c:\program files (x86) on 64-bit windows.
– Nathan
Mar 1 '11 at 20:33
2
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How do you turn off auto-capitalisation in HTML form fields in iOS?
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@AbhiBeckert Can confirm. 2014 and we can hardly remember iOS 6.
– Henry Harris
Jun 18 '14 at 21:06
24
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Reason to Pass a Pointer by Reference in C++?
...hat the user of that class could get a pointer to the internal data buffer and read/write to it, but it cannot – for example – free that buffer using delete or rebind that pointer to some other place in memory? Or did I get it wrong?
– BarbaraKwarc
Aug 4 '1...
SELECT * WHERE NOT EXISTS
...eeID = e.id
)
You can join these tables with a LEFT JOIN keyword and filter out the NULL's, but this will likely be less efficient than using NOT EXISTS.
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In Visual Studio C++, what are the memory allocation representations?
In Visual Studio, we've all had "baadf00d", have seen seen "CC" and "CD" when inspecting variables in the debugger in C++ during run-time.
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Should Javadoc comments be added to the implementation?
Is it correct practice to add Javadoc comments in the interface and add non-Javadoc comments in the implementation?
7 Answe...
Find out how much memory is being used by an object in Python [duplicate]
...ject. One of the problems you may find is that Python objects - like lists and dicts - may have references to other python objects (in this case, what would your size be? The size containing the size of each object or not?). There are some pointers overhead and internal structures related to object ...
What is the expected syntax for checking exception messages in MiniTest's assert_raises/must_raise?
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@thanikkal Make sure you are using Minitest::Spec and not Minitest::Test. The Spec DSL, including expectations, are only available when using Minitest::Spec.
– blowmage
Oct 10 '16 at 15:28
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Convert numpy array to tuple
...turn tuple(totuple(i) for i in a)
except TypeError:
return a
And an example:
>>> array = numpy.array(((2,2),(2,-2)))
>>> totuple(array)
((2, 2), (2, -2))
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