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What are the differences between ArrayList and Vector?
...%, you can avoid this by ensurecapacity() method to make sure that you are allocating sufficient memory at the initial stages itself.
Hope it helps.
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GMSGroundOverlay animating - should I be using a CATiledLayer?
...ion.duration = duration;
CAAnimationGroup *group = [[CAAnimationGroup alloc] init];
group.animations = @[horizontalAnimation, verticleAnimation];
group.duration = duration;
group.repeatCount = HUGE_VALF;
[marker.layer addAnimation:group forKey:[NSString stringWithFormat:@"circul...
Location Services not working in iOS 8
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- (void)startLocationManager
{
locationManager = [[CLLocationManager alloc] init];
locationManager.delegate = self;
locationManager.distanceFilter = kCLDistanceFilterNone; //whenever we move
locationManager.desiredAccuracy = kCLLocationAccuracyBest;
[locationManager startUpdat...
Is this a “good enough” random algorithm; why isn't it used if it's faster?
...have distinctly un-uniform output.
Inspired by this article about how bad php's rand() function is, I made some random matrix images using QuickRandom and System.Random. This run shows how sometimes the seed can have a bad effect (in this case favouring lower numbers) where as System.Random is pret...
Can we have functions inside functions in C++?
... Note that the class instantiation approach comes with a memory allocation and is therefore dominated by the static approach.
– ManuelSchneid3r
May 18 '18 at 19:34
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How can I default a parameter to Guid.Empty in C#?
...lt to a new object creates a new object every time the method is called in PHP; but only creates one object for the entire program in Python. Really, I consider this to be one of the very few design flaws of Python. I'm somewhat glad C# (and VB.Net) avoided this issue by simply disallowing new obj...
LPCSTR, LPCTSTR and LPTSTR
...emember to call ReleaseBuffer() if the string does get changed. Or you can allocate a local temporary buffer and copy the string into there.
99% of the time this will be unnecessary and treating the LPCTSTR as an LPTSTR will work... but one day, when you least expect it...
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in a “using” block is a SqlConnection closed on return or exception?
...
Using generates a try / finally around the object being allocated and calls Dispose() for you.
It saves you the hassle of manually creating the try / finally block and calling Dispose()
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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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What is the difference between square brackets and parentheses in a regex?
...uestion uses keyword var in code, this probably is JavaScript). The use of php which runs on PCRE for preg matching will optimize away the lack of backtracking, however we're not in PHP either, so using classes [] instead of alternations | gives performance bonus as the match does not backtrack, and...