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Why does Windows64 use a different calling convention from all other OSes on x86-64?
...evel and compiler-generated "glue" code (think, for example, some C++ heap allocators zero-filling objects on construction, or the kernel zero-filling heap pages on sbrk(), or copy-on-write pagefaults) an enormous amount of block copy/fill, hence it'll be useful for code so frequently used to save t...
How many and which are the uses of “const” in C++?
... at the name (kpPointer) and draw a clockwise spiral going out through the token, and say each token. Obviously, there's nothing to the right of kpPointer but it still works.
– Steve Folly
Jan 22 '09 at 19:38
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When does a process get SIGABRT (signal 6)?
...detect an internal error or some seriously broken constraint. For example malloc() will call abort() if its internal structures are damaged by a heap overflow.
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Which is more efficient, a for-each loop, or an iterator?
...te a new Iterator when .iterator() is called, however they can be accessed allocation-free using the C-style loop. This can be important in certain high-performance environments where one is trying to avoid (a) hitting the allocator or (b) garbage collections.
– Dan
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Best practice? - Array/Dictionary as a Core Data Entity Attribute [closed]
...like this:
NSEntityDescription *entityDescription = [[NSEntityDescription alloc] init];
[entityDescription setName:@"AppointmentSearchResponse"];
[entityDescription setManagedObjectClassName:@"AppointmentSearchResponse"];
NSMutableArray *appointmentSearchResponseProperties = [NSMutableArray array]...
Best way to repeat a character in C#
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It may not be faster, but it can save on memory allocations (pressure) if you specify the correct capacity up front, and that can be as important as the micro benchmark of profiling this.
– wekempf
Apr 5 '16 at 13:03
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How do I convert NSMutableArray to NSArray?
...it autoreleased or not:
/* Not autoreleased */
NSArray *array = [[NSArray alloc] initWithArray:mutableArray];
/* Autoreleased array */
NSArray *array = [NSArray arrayWithArray:mutableArray];
EDIT: The solution provided by Georg Schölly is a better way of doing it and a lot cleaner, especially ...
Initial size for the ArrayList
...pacity is how many elements the list can potentially accommodate without reallocating its internal structures.
When you call new ArrayList<Integer>(10), you are setting the list's initial capacity, not its size. In other words, when constructed in this manner, the array list starts its life ...
Search for executable files using find command
...provide the same kind of brace expansion; however, they print the unquoted token {} as is (and thus: no need for escaping), because they do NOT consider it a valid brace expression (they require at least 2 tokens, or a valid numeric sequence expression), whereas fish deems {} a valid brace expressi...
How to get memory available or used in C#
... It should probably be noted that a call to GetCurrentProcess will itself allocate quite a lot of resources. Call Dispose on the returned process when done, or wrap the whole code in a "using" scope.
– Mathias Lykkegaard Lorenzen
Apr 1 '14 at 5:23
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