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When is assembly faster than C?

...hat although that's not entirely false, the cases where assembler can actually be used to generate more performant code are both extremely rare and require expert knowledge of and experience with assembly. ...
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How to create a new language for use in Visual Studio

... Regarding the Visual Studio aspects, what you need is a "language service", which is the entity that handles colorizing, intellisense, etc. for a given file extension/type. For an intro, see this article And for a code sample see here Regarding parsing, there are lots of technologies, and...
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Multiple constructors in python? [duplicate]

... Now you can do: c = C(fd) # or: c = C.fromfilename('a filename') Notice all those classmethods still go through the same __init__, but using classmethods can be much more convenient than having to remember what combinations of keyword arguments to __init__ work. isinstance is best avoided becaus...
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Use of *args and **kwargs [duplicate]

...u're not sure how many arguments might be passed to your function, i.e. it allows you pass an arbitrary number of arguments to your function. For example: >>> def print_everything(*args): for count, thing in enumerate(args): ... print( '{0}. {1}'.format(count, thing)) ... ...
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How do I include a pipe | in my linux find -exec command?

...ld result in only a single agrep process being spawned which would process all the output produced by numerous invocations of zcat. If you for some reason would like to invoke agrep multiple times, you can do: find . -name 'file_*' -follow -type f \ -printf "zcat %p | agrep -dEOE 'grep'\n" | s...
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Create JSON object dynamically via JavaScript (Without concate strings)

... By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy ...
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How to Update Multiple Array Elements in mongodb

...At this moment it is not possible to use the positional operator to update all items in an array. See JIRA http://jira.mongodb.org/browse/SERVER-1243 As a work around you can: Update each item individually (events.0.handled events.1.handled ...) or... Read the document, do the edits manually and ...
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How do you get the list of targets in a makefile?

...ed rake a bit (a Ruby make program), and it has an option to get a list of all the available targets, eg 20 Answers ...
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Permutations in JavaScript?

... If you notice, the code actually splits the chars into an array prior to do any permutation, so you simply remove the join and split operation var permArr = [], usedChars = []; function permute(input) { var i, ch; for (i = 0; i < inp...
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ModelSerializer using model property

... Meta is optional. If you omit fields, in the above example, you would get all the MyModel fields plus ext_link in the serialized data. And this is really awesome for complex models! EDIT: At least, this is true for djangorestframework==2.3.14. – e.thompsy Feb ...