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Swift Beta performance: sorting arrays
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tl;dr Swift 1.0 is now as fast as C by this benchmark using the default release optimisation level [-O].
Here is an in-place quicksort in Swift Beta:
func quicksort_swift(inout a:CInt[], start:Int, end:Int) {
if (end - start < 2){
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How can I maintain fragment state when added to the back stack?
...loper.android.com/guide/components/fragments.html I'm fighting this issue now, and I don't see any methods called when returning a fragment from the backstack. (Android 4.2)
– Colin M.
Nov 26 '12 at 21:13
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Writing unit tests in Python: How do I start? [closed]
I completed my first proper project in Python and now my task is to write tests for it.
7 Answers
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Does Python have a string 'contains' substring method?
...tring.punctuation + string.whitespace)).split() - ok, point taken. This is now ridiculous...
– Jamie Bull
Feb 1 '18 at 11:52
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How do I create a namespace package in Python?
...introduces implicit namespace packages, see PEP 420.
This means there are now three types of object that can be created by an import foo:
A module represented by a foo.py file
A regular package, represented by a directory foo containing an __init__.py file
A namespace package, represented by one ...
What is the command to list the available avdnames
I know I can start the emulator avd by typing
8 Answers
8
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How to modify a global variable within a function in bash?
... tell you, that it is impossible to fix. This is wrong, but it is a long known difficult to solve problem.
There are several ways on how to solve it best, this depends on your needs.
Here is a step by step guide on how to do it.
Passing back variables into the parental shell
There is a way to p...
What is the 'new' keyword in JavaScript?
...h value 'second'
// returns 'second'
It's like class inheritance because now, any objects you make using new ObjMaker() will also appear to have inherited the 'b' property.
If you want something like a subclass, then you do this:
SubObjMaker = function () {};
SubObjMaker.prototype = new ObjMaker...
How to read a (static) file from inside a Python package?
...t cannot be a directory).
For the example asked in the question, we must now:
make the <your_package>/templates/ into a proper package, by creating an empty __init__.py file in it,
so now we can use a simple (possibly relative) import statement (no more parsing package/module names),
and s...
How do I add multiple arguments to my custom template filter in a django template?
...want a template filter that looks like this:
{% if X|is_in:"1,2,3,4" %}
Now we can create your templatetag like this:
from django.template import Library
register = Library()
def is_in(var, args):
if args is None:
return False
arg_list = [arg.strip() for arg in args.split(',')]...