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Do I need to explicitly call the base virtual destructor?
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No, destructors are called automatically in the reverse order of construction. (Base classes last). Do not call base class destructors.
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What does the ^ operator do in Java?
... Shifts the bits of n left p positions. Zero bits are shifted into the low-order positions.
n >> p right shift 5 >> 2 1 Shifts the bits of n right p positions. If n is a 2's complement signed number, the sign bit is shifted into the high-order positions.
n >>> p...
String output: format or concat in C#?
... version of your code.
1. I removed Console.WriteLine as it's probably few orders of magnitude slower than what I'm trying to measure.
2. I'm starting the Stopwatch before the loop and stopping it right after, this way I'm not losing precision if the function takes for example 26.4 ticks to execute....
What is Bootstrap?
...s it's suited best for? (Ie. Temporary sites, small web apps, micro sites, etc?)
– Chuck Le Butt
Jan 28 '16 at 14:58
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Sort a list by multiple attributes?
...ring']:
'''helper to sort by the attributes named by strings of attrs in order'''
return lambda k: [ getattr(k, attr) for attr in attrs ]
then to use it
# would defined elsewhere but showing here for consiseness
self.SortListA = ['attrA', 'attrB']
self.SortListB = ['attrC', 'attrA']
records =...
.htaccess: Invalid command 'RewriteEngine', perhaps misspelled or defined by a module not included i
...sudo service apache2 restart
or
sudo a2enmod rewrite && sudo /etc/init.d/apache2 restart
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class method generates “TypeError: … got multiple values for keyword argument …”
...t happens when you try to pass positional parameter with wrong
position order along with keyword argument in calling function.
there is difference between parameter and argument you can read in detail about here Arguments and Parameter in python
def hello(a,b=1, *args):
print(a, b, *args)
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What are best practices for multi-language database design? [closed]
...t.
E.g. the first table contains only language-neutral data (primary key, etc.) and the second table contains one record per language, containing the localized data plus the ISO code of the language.
In some cases we add a DefaultLanguage field, so that we can fall-back to that language if no loca...
Dismissing a Presented View Controller
...esented, pushed onto a navigation controller, part of a tab bar controller etc. Using the delegate allows the "presenting" view controller to "dismiss" the view controller using the inverse of whatever method was used to present it.
– David Smith
Aug 2 '19 at 1...
Where does git config --global get written to?
... it may not be clear what location this corresponds to. But if you look at etc/profile (in C:\Program Files\Git), you'll see:
HOME="$HOMEDRIVE$HOMEPATH"
Meaning:
C:\Users\MyLogin
(on Windows 7)
That means the file is in C:\Users\MyLogin\.gitconfig for Git in Windows 7.
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