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How do I get a background location update every n minutes in my iOS application?
...oken;
dispatch_once(&onceToken, ^{
sharedInstance = [[self alloc] init];
LocationManager *instance = sharedInstance;
instance.locationManager = [CLLocationManager new];
instance.locationManager.delegate = instance;
instance.locationManager.desiredAccur...
How to read file contents into a variable in a batch file?
... @IulianOnofrei, set /p calls cmd!ReadBufFromInput with a stack allocated buffer to read 1023 wide characters (2046 bytes). It reads 1023 bytes from the file, assuming 1 byte per OEM/ANSI character, but it decodes the file using the current codepage, which isn't necessarily OEM/ANSI. Wors...
C++ valarray vs. vector
...ided to use std::vector while paying close attention to things like memory allocation and temporary object creation.
Both std::vector and std::valarray store the data in a contiguous block. However, they access that data using different patterns, and more importantly, the API for std::valarray e...
Passing enum or object through an intent (the best solution)
...g, Parcelable).
UPDATE: Please note wreckgar's comment that enum.values() allocates a new array at each call.
UPDATE: Android Studio features a live template ParcelableEnum that implements this solution. (On Windows, use Ctrl+J)
...
How to get a variable name as a string in PHP?
...ments something called "copy-on-write" so that $foo = $bar doesn't need to allocate extra memory straight away) or because they have been assigned (or passed to a function) by reference (e.g. $foo =& $bar). So a zval has no name.
When you pass a parameter to a function you are creating a new var...
Are arrays passed by value or passed by reference in Java? [duplicate]
...itself is passed by value, confused yet?). Quick example:
// assuming you allocated the list
public void addItem(Integer[] list, int item) {
list[1] = item;
}
You will see the changes to the list from the calling code. However you can't change the reference itself, since it's passed by value:...
Is Meyers' implementation of the Singleton pattern thread safe?
...
Why dynamically allocate the singleton? Why not just make 'pInstance' a static member of 'Singleton::instance()'?
– Martin York
Nov 2 '09 at 19:41
...
Design by contract using assertions or exceptions? [closed]
... of recovery can take place. For example, it may be that you're trying to allocate memory. When you catch a 'std::bad_alloc' exception it might be possible to free up memory and try again.
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How do I vertically center UITextField Text?
...nt. So he will have something like UITextField *textField = [[UITextField alloc] init];. If you use a different variable name (anything other than textField after the *), you need to do yourDifferentVariableNameHere.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter instead.
...
Working with Enums in android
...tes of RAM overhead.
Putting a single entry into a HashMap requires the allocation of an
additional
entry object that takes 32 bytes (see the previous section about
optimized data containers).
A few bytes here and there quickly add
up—app designs that are class- or object-heavy ...