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Why are primes important in cryptography?
One thing that always strikes me as a non-cryptographer: Why is it so important to use Prime numbers? What makes them so special in cryptography?
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How to pick just one item from a generator?
...ay also be used to avoid the StopIteration exception. For example next(g, None) for a generator of strings will either yield a string or None after the iteration was finished.
– Attila
Mar 6 '13 at 14:18
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How does `is_base_of` work?
...* than D* to B*.
Now what user defined conversion sequence is better? The one for the second or the first check function? The rule is that user defined conversion sequences can only be compared if they use the same conversion function or constructor according to 13.3.3.2/3b2. This is exactly the ca...
Does Git warn me if a shorthand commit ID can refer to 2 different commits?
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Given the structure of the git source code, it looks like one of the two outputs is a warning, and the other one an error. Not certain, though.
– Izkata
May 6 '14 at 21:07
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How does BLAS get such extreme performance?
...ning the library by hand for your particular machine then using a prebuilt one.)
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Are there any downsides to passing structs by value in C, rather than passing a pointer?
... passing by value is perfectly acceptable. But, apart from speed, there is one other reason why you should be careful passing/returning large structs by value: Stack space.
A lot of C programming is for embedded systems, where memory is at a premium, and stack sizes may be measured in KB or even By...
Java - escape string to prevent SQL injection
...ny way.
There are different set methods for different data types -- which one you use depends on what your database fields are. For example, if you have an INTEGER column in the database, you should use a setInt method. The PreparedStatement documentation lists all the different methods available...
Android: how to handle button click
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Question 1:
Unfortunately the one in which you you say is most intuitive is the least used in Android. As I understand, you should separate your UI (XML) and computational functionality (Java Class Files). It also makes for easier debugging. It is actuall...
Is a colon `:` safe for friendly-URL use?
... these restrictions, the fragment part has no defined structure beyond the one your application gives it. The scheme, http, only says that you don't send this part to the server.
EDIT:
D'oh!
Despite my assertions about the URI spec, irreputable provides the correct answer when he points out tha...
Android; Check if file exists without creating a new one
...heck if file exists in my package folder, but I don't want to create a new one.
7 Answers
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