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UIView with rounded corners and drop shadow?

...ed corners in a view with the drop shadow. UIView* roundedView = [[UIView alloc] initWithFrame: frame]; roundedView.layer.cornerRadius = 5.0; roundedView.layer.masksToBounds = YES; UIView* shadowView = [[UIView alloc] initWithFrame: frame]; shadowView.layer.shadowColor = [UIColor blackColor].CGCol...
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How to get pixel data from a UIImage (Cocoa Touch) or CGImage (Core Graphics)?

...olorSpaceCreateDeviceRGB(); unsigned char *rawData = (unsigned char*) calloc(height * width * 4, sizeof(unsigned char)); NSUInteger bytesPerPixel = 4; NSUInteger bytesPerRow = bytesPerPixel * width; NSUInteger bitsPerComponent = 8; CGContextRef context = CGBitmapContextCreate(raw...
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How to copy Java Collections list

...hen it will throw an IndexOutOfBoundsException. The expectation is that no allocations will be required by Collections.copy to work, and if any are, then it throws that exception. It's an optimization to require the copied collection to be preallocated (b), but I generally do not think that the feat...
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How to debug Lock wait timeout exceeded on MySQL?

...--------------- BUFFER POOL AND MEMORY ---------------------- Total memory allocated 18909316674; in additional pool allocated 1048576 Dictionary memory allocated 2019632 Buffer pool size 1048576 Free buffers 175763 Database pages 837653 Modified db pages 6 Pending reads 0 Pending write...
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NSDate get year/month/day

...force a Gregorian calendar, you'll want to use the following: [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar] – Itai Ferber Jun 9 '13 at 21:01 2 ...
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Using generic std::function objects with member functions in one class

... in size, assigning this to an std::function will result in dynamic memory allocation. On the other hand, a lambda that captures this is only one pointer in size, assigning it to an std::function will not result in dynamic memory allocation with g++. While I have not verified this with other compi...
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How do you parse and process HTML/XML in PHP?

...led, with no responses to fixes since 14 Apr 16. Ganon A universal tokenizer and HTML/XML/RSS DOM Parser Ability to manipulate elements and their attributes Supports invalid HTML and UTF8 Can perform advanced CSS3-like queries on elements (like jQuery -- namespaces supported) ...
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C++ Lock-free Hazard Pointer(冒险指针) - C/C++ - 清泛网 - 专注C/C++及内核技术

...re(const std::atomic<T *> &target) { auto pointer = HazardPointer<T>::Alloc(); do { pointer->target_ = target.load(std::memory_order_acquire); } while (pointer->target_.load(std::memory_order_acquire) != target.load(std::memory_order_acquire)); return Holde...
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Cannot highlight all occurrences of a selected word in Eclipse

... And in addition to Ctrl+Alt+F you must also have the word or token selected first. Nevertheless, better than nothing I guess. Such a feature is core in the majority of editors (but not Eclipse). Go figure. – wmoecke Nov 14 '18 at 20:01 ...
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Collections.emptyMap() vs new HashMap()

...ameters, it's certainly a bit wasteful to create a HashMap, which involves allocating an array, when you could just pass in the 'Empty Map' which is effectively a constant, the way it's implemented in java.util.Collections. ...