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Why do people use __(double underscore) so much in C++
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From Programming in C++, Rules and Recommendations :
The use of two underscores (`__') in identifiers is reserved for the compiler's internal use according to the ANSI-C standard.
Underscores (`_') are often used in names of library functions (such as "...
git rebase without changing commit timestamps
Would it make sense to perform git rebase while preserving the commit timestamps?
5 Answers
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Implementation difference between Aggregation and Composition in Java
I'm aware of the conceptual differences between Aggregation and Composition. Can someone tell me the implementation difference in Java between them with examples?
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What's the difference between Cache-Control: max-age=0 and no-cache?
...nt the MUST-revalidate behavior when you've generated the response to an e-commerce purchase.
Although you're correct in your comment when you say no-cache is not supposed to prevent storage, it might actually be another difference when using no-cache. I came across a page, Cache Control Directive...
Why does the indexing start with zero in 'C'?
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In C, the name of an array is essentially a pointer [but see the comments], a reference to a memory location, and so the expression array[n] refers to a memory location n elements away from the starting element. This means that the index is used as an offset. The first element of the array...
Understanding the map function
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map isn't particularly pythonic. I would recommend using list comprehensions instead:
map(f, iterable)
is basically equivalent to:
[f(x) for x in iterable]
map on its own can't do a Cartesian product, because the length of its output list is always the same as i...
Extract traceback info from an exception object
... the version of Python you're using.
In Python 3
It's simple: exceptions come equipped with a __traceback__ attribute that contains the traceback. This attribute is also writable, and can be conveniently set using the with_traceback method of exceptions:
raise Exception("foo occurred").with_trac...
XML attribute vs XML element
... going to put in there, eg, a integer or a date, probably anything that is computer generated. If the BarCode was generated by a human then it should not be an attribute.
– John Ballinger
Jul 5 '09 at 12:06
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How to load a UIView using a nib file created with Interface Builder
...to load main view from nib after standard controller init method. Reason - complex sublassing structure
– Lukasz
Dec 10 '10 at 15:12
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