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Saving vim macros
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The :mkexrc (or :mkvimrc) command can be used to save all the current :map and :set settings to a file. See :help mkexrc for details.
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Compelling examples of custom C++ allocators?
What are some really good reasons to ditch std::allocator in favor of a custom solution? Have you run across any situations where it was absolutely necessary for correctness, performance, scalability, etc? Any really clever examples?
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What are paramorphisms?
...foldr c n xs)
para c n [] = n
foldr c n [] = n
Some people call paramorphisms "primitive recursion" by contrast with catamorphisms (foldr) being "iteration".
Where foldr's two parameters are given a recursively computed value for each recursive subobject of the input data (here, that...
How to draw a line in android
... or VISIBLE at run-time
– Hatim
Jan 16 '17 at 11:15
A cross can also be made with this solution, just add "rotation" a...
Add more than one parameter in Twig path
...003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4.61182 48.1414 4.61182C47.4335 4.61182 46.7256 4.91628 46.0943 5.50789C45.7307 4.9328 45.2525 4.66231 44...
Reading 64bit Registry from a 32bit application
... build server is a 64bit machine, and has a 64bit SQL Express instance installed.
6 Answers
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What exactly does an #if 0 … #endif block do?
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edited Mar 16 '17 at 19:29
Peter Mortensen
26.5k2121 gold badges9292 silver badges122122 bronze badges
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How does a public key verify a signature?
... add a digital signature to a document using his/her private key to essentially obtain a hash of the document, but what I do not understand is how the public key can be used to verify that signature.
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How do I write JSON data to a file?
... codecs.getwriter('utf-8')(f), ensure_ascii=False)
The codecs.getwriter call is redundant in Python 3 but required for Python 2
Readability and size:
The use of ensure_ascii=False gives better readability and smaller size:
>>> json.dumps({'price': '€10'})
'{"price": "\\u20ac10"}'
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What is the difference between C, C99, ANSI C and GNU C?
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Everything before standardization is generally called "K&R C", after the famous book, with Dennis Ritchie, the inventor of the C language, as one of the authors. This was "the C language" from 1972-1989.
The first C standard was released 1989 nationally in USA, ...