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What is the effect of extern “C” in C++?
...ou care about the technicalities, they are listed in section 7.5 of the C++03 standard, here is a brief summary (with emphasis on extern "C"):
extern "C" is a linkage-specification
Every compiler is required to provide "C" linkage
A linkage specification shall occur only in namespace scope
All func...
JavaScript hashmap equivalent
... all costs, especially, if I know what makes my objects unique.
Update in 2014: Answered back in 2008 this simple solution still requires more explanations. Let me clarify the idea in a Q&A form.
Your solution doesn't have a real hash. Where is it???
JavaScript is a high-level language. Its basi...
Is the practice of returning a C++ reference variable evil?
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420
In general, returning a reference is perfectly normal and happens all the time.
If you mean:
i...
sed edit file in place
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edited Jun 10 '18 at 12:23
Iulian Onofrei
6,77988 gold badges5252 silver badges9393 bronze badges
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Restful way for deleting a bunch of items
...esources/selections
which, if successful, should respond with:
HTTP/1.1 201 created, and a Location header to:
http://example.com/resources/selections/DF4XY7
On this page you will then see a (javascript) confirm box, which if you confirm will do a request of:
DELETE http://example.com/resources/...
Best XML Parser for PHP [duplicate]
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106
I would have to say SimpleXML takes the cake because it is firstly an extension, written in C, ...
How to sort an array of integers correctly
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1306
By default, the sort method sorts elements alphabetically. To sort numerically just add a new m...
Use a list of values to select rows from a pandas dataframe [duplicate]
...pd.DataFrame({'A': [5,6,3,4], 'B': [1,2,3,5]})
In [2]: df
Out[2]:
A B
0 5 1
1 6 2
2 3 3
3 4 5
In [3]: df[df['A'].isin([3, 6])]
Out[3]:
A B
1 6 2
2 3 3
And to get the opposite use ~:
In [4]: df[~df['A'].isin([3, 6])]
Out[4]:
A B
0 5 1
3 4 5
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How to write PNG image to string with the PIL?
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answered Mar 14 '09 at 17:21
sthsth
190k4848 gold badges258258 silver badges349349 bronze badges
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Read String line by line
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edited Jun 30 '17 at 16:46
Michael
31.9k99 gold badges5252 silver badges9494 bronze badges
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