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Array initialization syntax when not in a declaration
... dynamic. Java wants to know at declaration time how much memory should be allocated for the array. An ArrayList is much more dynamic and the size of it can vary over time.
If you initialize your array with the length of two, and later on it turns out you need a length of three, you have to throw a...
What is the garbage collector in Java?
... loop. This means that in every iteration, a little bit of memory is being allocated to make a String object.
Going back to the code, we can see that once a single iteration is executed, in the next iteration, the String object that was created in the previous iteration is not being used anymore --...
Imitate Facebook hide/show expanding/contracting Navigation Bar
... How do you bring it back after that?
– C0D3
Apr 29 '15 at 16:30
the behaviour it's a bit strange. I didn'...
How to hide the “back” button in UINavigationController?
.... I could do something like:
UIViewController *newVC = [[UIViewController alloc] init];
//presumably would do some stuff here to set up the new view controller
newVC.navigationItem.hidesBackButton = YES;
[myNavController pushViewController:newVC animated:YES];
When the code finishes, the view con...
LINQ, Where() vs FindAll()
...
code.msdn.microsoft.com/LINQ-Query-Execution-ce0d3b95 explains the differences between lazy (deferred) and immediate execution. Basically, in some cases, you don't need the whole list, you may want to loop through the items until something happens, then stop. This is wher...
How do CUDA blocks/warps/threads map onto CUDA cores?
I have been using CUDA for a few weeks, but I have some doubts about the allocation of blocks/warps/thread.
I am studying the architecture from a didactic point of view (university project), so reaching peak performance is not my concern.
...
Why does sun.misc.Unsafe exist, and how can it be used in the real world?
...e-and-swap
The sun.misc.Unsafe functionality of the host VM can be used to allocate uninitialized objects and then interpret the constructor invocation as any other method call.
One can track the data from the native address.It is possible to retrieve an
object’s memory address using the java.lang...
Count the items from a IEnumerable without iterating?
... edited Sep 29 '16 at 17:18
c0d3b34n
47966 silver badges1313 bronze badges
answered Oct 4 '08 at 3:49
Rober...
What is “overhead”?
...
Re data structure memory overhead: With most memory allocators, it's even worse than that. Each value returned by malloc has a built-in overhead of 8 bytes due to the allocator (assuming classic 32-bit machine) consisting of the size of the block plus guard values. And that's ...
How to convert wstring into string?
... The above code gives (as copied) gives me a *** glibc detected *** test: malloc(): smallbin double linked list corrupted: 0x000000000180ea30 *** on linux 64-bit (gcc 4.7.3). Anybody else experiencing this?
– hogliux
Nov 10 '13 at 12:22
...