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Conditions for automatic generation of default/copy/move ctor and copy/move assignment operator?
...r functions are declared, but defined as deleted." refer to where you for example have const or reference members where move will be impossible? No, that can't be, because there copy will be applied.
– towi
Sep 27 '16 at 7:37
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How to “perfectly” override a dict?
...you actually want to do is implement the interface of a dict. And that is exactly what ABCs are for.
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Using global variables between files?
...ng them:
# settings.py
def init():
global myList
myList = []
Next, your subfile can import globals:
# subfile.py
import settings
def stuff():
settings.myList.append('hey')
Note that subfile does not call init()— that task belongs to main.py:
# main.py
import settings
import ...
Officially, what is typename for?
... were causing very strange compile errors that magically went away by prefixing the typename keyword to the beginning of the declaration... (For example, just last week, I was declaring two iterators as members of another templated class and I had to do this)...
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Nullable Foreign Key bad practice?
... temporary I think you should skip the link table since it only adds complexity to the scheme.
On a side note; using a link table doesn't necessarily make it n to n, if you in the link table use the foreign key that's pointing to your orders table as the primary key in that link table the relations...
Isn't it silly that a tiny favicon requires yet another HTTP request? How can I put the favicon into
...t now, in June 2020, these browsers can handle SVG Favicons:
Chrome
Firefox
Edge
Opera
Chrome for Android
KaiOS Browser
Note that these browsers still can't:
Safari
iOS Safari
Firefox for Android
With the above in mind, we can now use SVG Favicons with a reasonable degree of confidence.
2) Pres...
Do while loop in SQL Server 2008
...t you can change your WHILE loop logic, so as to USE like DO-WHILE loop.
Examples are taken from here: http://blog.sqlauthority.com/2007/10/24/sql-server-simple-example-of-while-loop-with-continue-and-break-keywords/
Example of WHILE Loop
DECLARE @intFlag INT
SET @intFlag = 1
WHILE (@intFla...
Getting user input [duplicate]
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In python 3.x, use input() instead of raw_input()
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How do I perform HTML decoding/encoding using Python/Django?
...nerally, it is a good idea to stick with the standard library:
# Python 2.x:
import HTMLParser
html_parser = HTMLParser.HTMLParser()
unescaped = html_parser.unescape(my_string)
# Python 3.x:
import html.parser
html_parser = html.parser.HTMLParser()
unescaped = html_parser.unescape(my_string)
# &g...
Associativity of “in” in Python?
... ('a')
18 COMPARE_OP 6 (in) #this is never executed, so no Error
21 RETURN_VALUE
>> 22 ROT_TWO
23 POP_TOP
24 RETURN_VALUE
In [150]: def func1():
.....: return (1 i...