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Java: Detect duplicates in ArrayList?
... Would it be more efficient to tell the HashSet how much space to allocate: Set<T> set = new HashSet<T>(list.size());? Given a List parameter I think it is more efficient if it is common for the list to not contain duplicates.
– Paul Jackson
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“unrecognized selector sent to instance” error in Objective-C
... you're not memory managing the view controller properly and it is being deallocated at some point - which causes the numberButtonClicked: method to be sent to another object that is now occupying the memory that the view controller was previously occupying...
Make sure you're properly retaining/re...
How can I randomize the lines in a file using standard tools on Red Hat Linux?
...to process (much, much longer than with shuf), no matter how much memory I allocated.
– mklement0
May 8 '15 at 23:00
1
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What exactly are “spin-locks”?
...als), making statically dispatched calls into any code one doesn't own, or allocating memory.
It's also important to note that SpinLock is a value type, for performance reasons. As such, one must be very careful not to accidentally copy a SpinLock instance, as the two instances (the original and the...
Generic List - moving an item within the list
... should remove before inserting ... your order may cause the list to do an allocation.
– Jim Balter
Nov 6 '18 at 15:47
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Android: Scale a Drawable or background image?
...want to scale the background image (keeping its aspect ratio) to the space allocated when the page gets created. Does anyone have an idea how to do this?
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Convert file path to a file URI?
...e URL even if the buffer is smaller, so I first obtain the length and then allocate the buffer.
Some very interesting observation I had is that while "\\device\path" is correctly transformed to "file://device/path", specifically "\\localhost\path" is transformed to just "file:///path".
The WinApi ...
How can I explicitly free memory in Python?
...do its job. That said, if the OP is in a situation where he is suddenly deallocating a lot of objects (like in the millions), gc.collect may prove useful.
– Jason Baker
Aug 22 '09 at 19:53
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UIButton inside a view that has a UITapGestureRecognizer
...strure
UITapGestureRecognizer *tapGestRecog = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(screenTappedOnce)];
[tapGestRecog setNumberOfTapsRequired:1];
[self.view addGestureRecognizer:tapGestRecog];
// This line is very important. if You don't add it then your ...
Comparing two NumPy arrays for equality, element-wise
...).all() method is the fastest, which is a little peculiar, given it has to allocate a whole new array.)
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