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Unix - copy contents of one directory to another [closed]
...t/
(make sure Dest/ exists first)
If you want to repeatedly update from one to the other or make sure you also copy all dotfiles, rsync is a great help:
rsync -av --delete Source/ Dest/
This is also "recoverable" in that you can restart it if you abort it while copying. I like "-v" because...
Can a class member function template be virtual?
... it would need to call a templatized virtual function, compilation is all done and the compiler cannot generate the appropriate instance anymore. Therefore you cannot have virtual member function templates.
However, there are a few powerful and interesting techniques stemming from combining polymo...
How do I dump the data of some SQLite3 tables?
..., as it should be easily re-entered into the database later and should be done from the command line. Something like
13 Ans...
Getters \ setters for dummies
...d first and last will be updated and vice versa.
n = new Name('Claude', 'Monet')
n.first # "Claude"
n.last # "Monet"
n.fullName # "Claude Monet"
n.fullName = "Gustav Klimt"
n.first # "Gustav"
n.last # "Klimt"
share
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Why must a nonlinear activation function be used in a backpropagation neural network? [closed]
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One sentence answer: <<no matter how many layers would behave just like a single perceptron (because linear functions added together just give you a linear function).>>. Nice!
– Autonomous
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list.clear() vs list = new ArrayList(); [duplicate]
Which one of the 2 options is better and faster to clear an ArrayList, and why?
8 Answers
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What exactly is a reentrant function?
... effect.
3. What exactly is the common thread between the six points mentioned that I should keep in mind while checking my code for reentrant capabilities?
You can smell a problem if your function has/gives access to a modifiable persistent resource, or has/gives access to a function that smells....
Split an NSString to access one particular piece
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NSArray* foo = [@"10/04/2011" componentsSeparatedByString: @"/"];
NSString* firstBit = [foo objectAtIndex: 0];
Update 7/3/2018:
Now that the question has acquired a Swift tag, I should add the Swift way of doing this. It's pretty much as simple:
let subs...
Why isn't String.Empty a constant?
... is String.Empty read only instead of a constant? I'm just wondering if anyone knows what the reasoning was behind that decision.
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How to justify a single flexbox item (override justify-content)
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What if I want one item to be on the left, and the other one in the center?
– Fahmi
Jan 18 '18 at 3:48
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