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Define make variable at rule execution time
...GNUmakefile, I would like to have a rule that uses a temporary directory. For example:
4 Answers
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What is the difference between getFields and getDeclaredFields in Java reflection
...claredFields()
All the fields, regardless of their accessibility but only for the current class, not any base classes that the current class might be inheriting from.
To get all the fields up the hierarchy, I have written the following function:
public static Iterable<Field> getFieldsUpTo(@...
Are Roslyn SyntaxNodes reused?
...UPDATE: This question was the subject of my blog on June 8th, 2012. Thanks for the great question!
Great question. We debated the issues you raise for a long, long time.
We would like to have a data structure that has the following characteristics:
Immutable.
The form of a tree.
Cheap access t...
Default initialization of std::array?
...itialization is specified; the C++ language guarantees you that any object for which you do not provide an explicit initializer will be default initialized (C++11 §8.5/11). That includes objects of type std::array<T, N> and T[N].
Be aware that there are types for which default initialization...
How do I deserialize a JSON string into an NSDictionary? (For iOS 5+)
... error:&error];
For example you have a NSString with special characters in NSString strChangetoJSON.
Then you can convert that string to JSON response using above code.
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Why is SSE scalar sqrt(x) slower than rsqrt(x) * x?
...curate to about 11 bits.
sqrtss is generating a far more accurate result, for when accuracy is required. rsqrtss exists for the cases when an approximation suffices, but speed is required. If you read Intel's documentation, you will also find an instruction sequence (reciprocal square-root approx...
Purpose of buildscript block in Gradle
...ck determines which plugins, task classes, and other classes are available for use in the rest of the build script. Without a buildScript block, you can use everything that ships with Gradle out-of-the-box. If you additionally want to use third-party plugins, task classes, or other classes (in the b...
Does a finally block run even if you throw a new Exception?
...putting actual logic inside a finally block. The finally block is intended for resource clean-up (closing DB connections, releasing file handles etc), not for must-run logic. If it must-run do it before the try-catch block, away from something that could throw an exception, as your intention is almo...
How does zip(*[iter(s)]*n) work in Python?
... length n, where each element is x. *arg unpacks a sequence into arguments for a function call. Therefore you're passing the same iterator 3 times to zip(), and it pulls an item from the iterator each time.
x = iter([1,2,3,4,5,6,7,8,9])
print zip(x, x, x)
...
Is python's sorted() function guaranteed to be stable?
...rimary" sorting keys are equal, it ends up sorting by the "secondary" key. For example, sorted([(1, 2), (1, 1)]) returns [(1, 1), (1, 2)] instead of returning the original input in the same sequence/order. Shouldn't the guarantee of stability mean that it should be returning the original [(1, 2), (1...