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Read/write files within a Linux kernel module
I know all the discussions about why one should not read/write files from kernel, instead how to use /proc or netlink to do that. I want to read/write anyway. I have also read
Driving Me Nuts - Things You Never Should Do in the Kernel .
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Python “extend” for a dictionary
...arn what **basket_two (the **) means here.
In case of conflict, the items from basket_two will override the ones from basket_one. As one-liners go, this is pretty readable and transparent, and I have no compunction against using it any time a dict that's a mix of two others comes in handy (any rea...
What is the good python3 equivalent for auto tuple unpacking in lambda?
... effectively "cast" the incoming sequence to the namedtuple:
>>> from collections import namedtuple
>>> point = namedtuple("point", "x y")
>>> b = lambda s: (p:=point(*s), p.x ** 2 + p.y ** 2)[-1]
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Why can't C# interfaces contain fields?
...tic level, I find it interesting to also approach these sorts of questions from the implementation details level.
An interface can be thought of as a collection of slots, which contain methods. When a class implements an interface, the class is required to tell the runtime how to fill in all the re...
How to retrieve POST query parameters?
...y-parser').json()) line is sufficient. And then you can read the json data from your request's body object, i.e. req.body, from within a route definition.
– Martin Carel
Nov 15 '14 at 21:58
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Can I pass parameters by reference in Java?
...ck. I believe that the question here was: Is it possible to pass reference from stack that points on some other value that is also on stack. Or pass reference of other reference which points on some value that lives on heap?
– eomeroff
Nov 21 '12 at 9:38
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JSON serialization of Google App Engine models
...add=True)
album = db.ReferenceProperty(Album, collection_name='photo')
from django.utils import simplejson
from google.appengine.ext import webapp
class PhotoHandler(webapp.RequestHandler):
def get(self):
photos = Photo.all()
self.response.out.write(simplejson.dumps([p.to_dict() ...
What is a word boundary in regex?
...haracter.
Word characters are alpha-numeric; a minus sign is not.
Taken from Regex Tutorial.
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Can you use a trailing comma in a JSON object?
...omma on the last item in the object or array. For example, code to output from an array of strings might look like (in a C++ like pseudocode):
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C++ Tuple vs Struct
...on about tuple and struct and I write some simple benchmarks with the help from one of my colleague to identify the differences in term of performance between tuple and struct. We first start with a default struct and a tuple.
struct StructData {
int X;
int Y;
double Cost;
std::str...