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Column order manipulation using col-lg-push and col-lg-pull in Twitter Bootstrap 3
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What is the difference between LR, SLR, and LALR parsers?
... me is an enormously useful fact. I build program analyzers and code transformers and parsers are necessary but "uninteresting"; the interesting work is what you do with the parsed result and so the focus is on doing the post-parsing work. Using GLR means I can relatively easily build working gram...
Would it be beneficial to begin using instancetype instead of id?
...blem. For instance, [[NSFileHandle fileHandleWithStandardOutput] writeData:formattedData] will generate an error on Mac OS X (only) Multiple methods named 'writeData:' found with mismatched result, parameter type or attributes. The reason is that both NSFileHandle and NSURLHandle provide a writeData...
What exactly is a reentrant function?
...The objects from the STL are designed to be not thread-safe (because of performance issues), and thus, if a user want to share a std::string between two threads, the user must protect its access with concurrency primitives;
7.5. Make sure your thread-safe code is recursive-safe
This means using re...
The Use of Multiple JFrames: Good or Bad Practice? [closed]
...feel it should be offered to the user both ways (certainly not only in MDI form). For example: 1) I currently use TextPad, and by configuration at my choice, it opens separate instances, that each offer multiple documents shown in a list. 2) Although I'll typically use FF in tabbed mode, occasio...
Why does Python code run faster in a function?
... not a local access. It is an attribute of an object. (Forgive the lack of formatting)def foo_func: x = 5, x is local to a function. Accessing x is local. foo = SomeClass(), foo.bar is attribute access. val = 5 global is global. As for speed local > global > attribute according to what I've re...
Java naming convention for static final variables [duplicate]
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That's still a constant. See the JLS for more information regarding the naming convention for constants. But in reality, it's all a matter of preference.
The names of constants in interface types should be, and final
variables of class types may conventionally be, ...
How can building a heap be O(n) time complexity?
... the correct choice between siftUp and siftDown is critical to get O(n) performance for buildHeap, but does nothing to help one understand the difference between buildHeap and heapSort in general. Indeed, proper implementations of both buildHeap and heapSort will only use siftDown. The siftUp operat...
How do Mockito matchers work?
...istOf(String.class). Because of type erasure, though, Mockito lacks type information to return any value but null for any() or argThat(...), which can cause a NullPointerException if trying to "auto-unbox" a null primitive value.
Matchers like eq and gt take parameter values; ideally, these values s...
What is the difference between the kernel space and the user space?
...el space, and normal programs run in user space. User space is basically a form of sand-boxing -- it restricts user programs so they can't mess with memory (and other resources) owned by other programs or by the OS kernel. This limits (but usually doesn't entirely eliminate) their ability to do bad ...