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In Python, what happens when you import inside of a function? [duplicate]
...le-level means each use of goo.this, goo.that, etc, is two dict lookups -- one for goo and one for the attribute name. Having it be "function level" pays one extra local-variable setting per run of the function (even faster than the dictionary lookup part!) but saves one dict lookup (exchanging it ...
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 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...
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 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...
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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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...
Formula to determine brightness of RGB color
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Not correct. Before applying the linear transformation, one must first apply the inverse of the gamma function for the color space. Then after applying the linear function, the gamma function is applied.
– Jive Dadson
Nov 26 '12 at 3:43
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