大约有 2,196 项符合查询结果(耗时:0.0137秒) [XML]

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Does Java SE 8 have Pairs or Tuples?

...more radical. In particular, its value types would not necessarily be heap-allocated. Also, unlike objects today, and like primitives today, values would have no identity. – Stuart Marks Jun 23 '14 at 16:05 ...
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Parallel.ForEach vs Task.Factory.StartNew

... to complete. Shivprasad's approach focuses more on object creation/memory allocation than on computing itself. I made a research calling the following method: public static double SumRootN(int root) { double result = 0; for (int i = 1; i < 10000000; i++) { result += ...
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TCP: can two different sockets share a port?

...Most kernels (incl. linux) doesn't allow you a second bind() to an already allocated port. It weren't a really big patch to make this allowed. Conceptionally, we should differentiate between socket and port. Sockets are bidirectional communication endpoints, i.e. "things" where we can send and rece...
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What does “Auto packing the repository for optimum performance” mean?

... "If you let Git finish", and it can... fatal: Out of memory, malloc failed (tried to allocate 79610689 bytes) error: failed to run repack -- this is what I get for sticking our entire codebase into one git repo. Guess I'm going to kill apps and force repack "manually" ...
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How to declare std::unique_ptr and what is the use of it?

...t of scope. This way you do not have to remember doing delete on objects allocated dynamically - the destructor of the smart pointer will do that for you - nor to worry about whether you won't dereference a (dangling) pointer to an object that has been destroyed already: { unique_ptr<int&g...
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What is the difference between `sorted(list)` vs `list.sort()`?

... that you busted a myth too quickly. The fact remains that sorted() has to allocate a new list object and copy the references; the rest of the code paths are identical. See if you can run the same tests with larger lists. Compare it with just creating copies of lists and see if you can replicate the...
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Setting variable to NULL after free

... int *nPtr=NULL;. Now, I would agree that this would be redundant, with a malloc following right in the next line. However, if there is code between the declaration and the first initialization, somebody might start using the variable even though it has no value yet. If you null-initialize, you get ...
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Why do std::shared_ptr work

...internally use inheritance to call the appropriate destructor as it was at allocation time. share | improve this answer | follow | ...
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Why does the 260 character path length limit exist in Windows?

...tion used that defined value. My structure is correctly defined, and only allocates 592 bytes total. That means that i am only able to receive a filename that is less than 260 characters. Windows promised me that if i wrote my application correctly, my application would continue to work in the futu...
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Equivalent of varchar(max) in MySQL?

.... As the data in the MAX column fills an 8KB data page an overflow page is allocated and the previous page points to it forming a linked list. Unlike TEXT, NTEXT, and BLOB the varchar(max) column type supports all the same query semantics as other column types. So varchar(MAX) really means varchar(A...