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Should I implement __ne__ in terms of __eq__ in Python?
...;> f2 == f
False
>>> f2 != f
True
Performance
Don't take my word for it, let's see what's more performant:
class CLevel:
"Use default logic programmed in C"
class HighLevelPython:
def __ne__(self, other):
return not self == other
class LowLevelPython:
def __ne__...
Relational table naming convention [closed]
... only good thing about *fixes I can think of, is that you can use reserved words like where_t, tbl_order, user_vw. Of course, in those examples, using plural would have solved the issue :)
Don't name all keys "ID". Keys refering to the same thing, should have the same name in all tables. The user i...
What to do Regular expression pattern doesn't match anywhere in string?
...ect"
id => "twotabsearchtextbox"
name => "field-keywords"
size => "50"
style => "width:100%; background-color: #FFF;"
title => "Search for"
type => "text"
value => ""
input tag #2 at character 10335:
alt => "Go"...
Maximum single-sell profit
...so hand back the minimum and maximum values stored in each half! In other words, our recursion hands back three things:
The buy and sell times to maximize profit.
The minimum value overall in the range.
The maximum value overall in the range.
These last two values can be computed recursively us...
Comparison between Corona, Phonegap, Titanium
...that? With the App Store, I pick an app, tap the "Buy" button, enter a password, and I'm done. It installs. Seconds later, I'm using it. If I had to use someone else's one-off mobile web transaction interface, which likely means having to tap out my name, address, phone number, CC number, and other ...
What are metaclasses in Python?
...n Python. Classes are objects too.
Yes, objects.
As soon as you use the keyword class, Python executes it and creates
an OBJECT. The instruction
>>> class ObjectCreator(object):
... pass
...
creates in memory an object with the name "ObjectCreator".
This object (the class) is itself ...
How to detect a Christmas Tree? [closed]
...oach that takes in consideration the object brightness and shape. In other words, it seeks for objects with triangle-like shape and with significant brightness. It was implemented in Java, using Marvin image processing framework.
The first step is the color thresholding. The objective here is to fo...
How to implement classic sorting algorithms in modern C++?
...ecause they contain links to entire Q&As themselves. Implementing real-word sorting routines is hard!
– TemplateRex
Aug 7 '14 at 13:27
...
What is the best regular expression to check if a string is a valid URL?
... Yes, http://com is a valid URL. http://localhost is, why wouldn't other words be? You are correct that the u modifier is necessary in PHP. I want to be clear that while I generated these with PHP, they are not meant to be PHP-specific.
– eyelidlessness
Nov 2...
How do I pass a unique_ptr argument to a constructor or a function?
...rable as well.
Returning a smart pointer: always by value
To conclude a word about returning a smart pointer, presumably pointing to an object created for use by the caller. This is not really a case comparable with passing pointers into functions, but for completeness I would like to insist that...