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Multiple Inheritance in C#
...ile having upcasts and downcasts be identity-preserving? The solutions I know of for the problems of multiple inheritance revolve around having casts that are not identity-preserving (if myFoo is of type Foo, which inherits from Moo and Goo, both of which inherit from Boo, then (Boo)(Moo)myFoo and ...
SQL to determine minimum sequential days of access?
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(because NOBODY would do a SELECT *, we know adding this computed column will not affect the query plans unless the column is referenced... right guys?!?)
– IDisposable
Jul 24 '09 at 8:24
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Find which version of package is installed with pip
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Pip 1.3 now also has a list command:
$ pip list
argparse (1.2.1)
pip (1.5.1)
setuptools (2.1)
wsgiref (0.1.2)
share
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improve thi...
What is the correct way to document a **kwargs parameter?
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The most meaningful continuation of that is now subprocess.Popen and I'm not sure that it's a particularly great example any more.
– Donal Fellows
Jan 11 '17 at 21:50
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What is an idempotent operation?
...e HTTP itself) of why PUT can be resent without worries while POST cannot. Now it appears that we are simply required to conform to the HTTP standards and the behaviour is totally based on how the server is implemented
– mangusta
Feb 22 at 6:11
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Officially, what is typename for?
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Unfortunately, the compiler is not required to be psychic, and doesn't know whether T::sometype will end up referring to a type name or a static member of T. So, one uses typename to tell it:
template<class T> somefunction( T * arg )
{
typename T::sometype x; // works!
.
.
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How to close tag properly?
...lt;img /> is valid in [X]HTML/XML, though the use of XHTML is very rare nowadays and if your server is serving the pages as text/html all you have to worry about is writing valid HTML. The odds to have to migrate an HTML app to XHTML is close to nil.
– Fabrício Matté
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Hidden Features of C++? [closed]
... from Herb Sutter to be both easy to read, and quite treasures of info on known and less known features of C++.
Among my preferred is one that should make the hair of any Java programmer rise from horror: In C++, the most object-oriented way to add a feature to an object is through a non-member non...
How does “make” app know default target to build if no target is specified?
...s to the top of your make file:
.DEFAULT_GOAL := mytarget
mytarget will now be the target that is run if "make" is executed and no target is specified.
If you have an older version of make (<= 3.80), this won't work. If this is the case, then you can do what anon mentions, simply add this to ...
How to initialise a string from NSData in Swift
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Added a Swift 2.0 version as well now
– Sunkas
Nov 9 '15 at 8:50
Would you ha...