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In pure functional languages, is there an algorithm to get the inverse function?
...x,-x]) [1..] will work, as this runs through the integers in the following order [0,1,-1,2,-2,3,-3, and so on]. Indeed inv (0 : concatMap (\x -> [x,-x]) [1..]) (+1) (-3) promptly returns -4!
The Control.Monad.Omega package can help you run through lists of tuples etcetera in a good way; I'm sure...
The written versions of the logical operators
...al Studio (as of VS2013), you must set a specific compiler option (/Za) in order to support the alternative keywords (see stackoverflow.com/a/555524/368896). That presumably also has other impacts. So, in Visual Studio, it's not necessarily safe to take this advice.
– Dan Nis...
SearchView's OnCloseListener doesn't work
...
In order to make the
How to return a string value from a Bash function
...ntent in $result as shell special characters. I have found that this is an order of magnitude faster than the result=$(some_func "arg1") idiom of capturing an echo. The speed difference seems even more notable using bash on MSYS where stdout capturing from function calls is almost catastrophic.
It'...
Why use JUnit for testing?
...ond pair of eyes will have to converse with original author of the code in order to fully understand the code in question. Conversation as a means of sharing knowledge is notoriously unreliable. A point which is moot if the Original Coder is unavailable to the new pair eyes. In that instance the ne...
Moving Files into a Real Folder in Xcode
...to the project. In that case you'd have to track which ones you removed in order to restore them, or something similar.
– Matthew Frederick
Jul 5 '11 at 2:22
11
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ASP.NET Web Site or ASP.NET Web Application?
.... It will compile the application into a single DLL file at build
time. In order to update the project, it must be recompiled and the DLL file
published for changes to occur.
Another nice feature of the Web Application
project is it's much easier to exclude files from the project view. In the
Web ...
Weak and strong property setter attributes in Objective-C
...ver may be unpredictably set to nil". I have seen some other posts that in order to prevent this warning, you have to create a local strong reference. And if this is true, what's the point to make a property weak, if at the end I have to create a strong reference?
– arh
...
Making an array of integers in iOS
...
If the order of your integers is not required,
and if there are only unique values
you can also use NSIndexSet or NSMutableIndexSet
You will be able to easily add and remove integers, or check if your array contains an integer wi...
What's the role of GetHashCode in the IEqualityComparer in .NET?
...hat wants to use strings as keys but use case-insensitive comparisons. In order to make that work efficiently, the dictionary will need to have some form of hash function that will yield the same value for "Fox" and "FOX", but hopefully yield something else for "box" or "zebra". Since the GetHashC...