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Unpacking, extended unpacking and nested extended unpacking
...our code may be misleading use other form to express it.
It's like using extra brackets in expressions to avoid questions about operators precedence.
I'ts always a good investment to make your code readable.
I prefer to use unpacking only for simple tasks like swap.
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How do malloc() and free() work?
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@Juergen But when free() read extra byte which contain information how much memory allocated from malloc, it get 4. Then how crash happened or how free() touch administrative data ?
– Undefined Behaviour
Aug 5 '16 at...
Invalidating JSON Web Tokens
...exists / is authorized to access the api endpoint. So you aren't doing any extra db queries by comparing the jwt token version number with the one on the user.
– DaftMonk
Jul 7 '14 at 5:58
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Qt events and signal/slots
...resents a new abstraction: a widget that acts like a button, but with some extra functionality. We added this functionality very conveniently:
Since we reimplemented a virtual, our implementation automatically became encapsulated in our class. If Qt's designers had made keyPressEvent a signal, we ...
Mercurial move changes to a new branch
... @sschuberth: I think being explicit is a good thing here. If the extra changeset is a problem for you, combine it with the succeeding one (e.g. by using the fold command of the now built-in histedit extension).
– Oben Sonne
Nov 28 '12 at 12:19
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How to create a unique index on a NULL column?
...k, and normalization usually involves the addition of several (non-entity) extra tables to establish relationships between the entities.
Let's work a basic example considering only one "unique nullable column", it's easy to expand it to more such columns.
Suppose we the information represented by ...
Should I implement __ne__ in terms of __eq__ in Python?
... work (assuming SQLAlchemy knows how to insert MyClassWithBadNE into a SQL string at all; this can be done with type adapters without MyClassWithBadNE having to cooperate at all), passing the expected proxy object to filter, while:
results = session.query(MyTable).filter(MyClassWithBadNE() != MyTa...
How to access the correct `this` inside a callback?
... that adds meaning, or some preceding and following information that gives extra meaning. The term "context" is used in ECMAScript to refer to execution context, which is all the parameters, scope, and this within the scope of some executing code.
This is shown in ECMA-262 section 10.4.2:
Set the T...
What is the difference between 'classic' and 'integrated' pipeline mode in IIS7?
...mply say that in Classic mode IIS 7.x works just as IIS 6 and you dont get extra benefits out of IIS 7.x features.
In integrated mode IIS and ASP.Net are tightly coupled rather then depending on just two DLLs on Asp.net as in case of classic mode.
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Private vs Protected - Visibility Good-Practice Concern [closed]
... sure.
There are two cases you want to extend a class:
You want to add extra functionality to a base class
You want to modify existing class that's outside the current package (in some libraries perhaps)
There's nothing wrong with private fields in the first case. The fact that people are abus...