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How do arrays in C# partially implement IList?
...r of items, whereas an array has an unchangeable "length" as soon as it is allocated (regardless of which elements have values.)
– dlev
Jun 22 '12 at 20:09
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What is an IndexOutOfRangeException / ArgumentOutOfRangeException and how do I fix it?
...ith a limitation: they can't grow, if you need more elements you need to reallocate that array (this may take a relatively long time if old items must be copied to a new block). You resize them with Array.Resize<T>(), this example adds a new entry to an existing array:
Array.Resize(ref array,...
Using smart pointers for class members
...w pointers are bad when used for performing manual memory management, i.e. allocating and deallocating objects through new and delete. When used purely as a means to achieve reference semantics and pass around non-owning, observing pointers, there is nothing intrinsically dangerous in raw pointers, ...
Is it ever advantageous to use 'goto' in a language that supports loops and functions? If so, why?
...o this already):
Cleanly exiting a function
Often in a function, you may allocate resources and need to exit in multiple places. Programmers can simplify their code by putting the resource cleanup code at the end of the function, and all "exit points" of the function would goto the cleanup label....
std::vector performance regression when enabling C++11
...han for C++98 mode and inlining the function
void std::vector<Item,std::allocator<Item>>::_M_emplace_back_aux<Item>(Item&&)
fails in C++11 mode with the default inline-limit.
This failed inline has a domino effect. Not because this function is being called
(it is not eve...
What's the need of array with zero elements?
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This is a way to have variable sizes of data, without having to call malloc (kmalloc in this case) twice. You would use it like this:
struct bts_action *var = kmalloc(sizeof(*var) + extra, GFP_KERNEL);
This used to be not standard and was considered a hack (as Aniket said), but it was standa...
What Makes a Method Thread-safe? What are the rules?
...ble is that it is only visible from within the local scope, not that it is allocated on the temporary pool. It is perfectly legal and possible to access the same local variable from two different threads. You can do so by using anonymous methods, lambdas, iterator blocks or async methods.
Is th...
How do I get Windows to go as fast as Linux for compiling C++?
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If you allocate a piece of a memory as a ramdisk, it's not available to the kernel for caching or use for anything else. In effect, you're wringing its hand and forcing it to use less memory for its own algorithms. My knowledge is e...
Is recursion ever faster than looping?
...airly expensive compared to iteration (in general) because it requires the allocation of a new stack frame. In some C compilers, one can use a compiler flag to eliminate this overhead, which transforms certain types of recursion (actually, certain types of tail calls) into jumps instead of function...
GridLayout and Row/Column Span Woe
...oducing GridLayout shows this diagram of how spans impact automatic index allocation:
5 Answers
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