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What's the difference between ASCII and Unicode?
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ASCII has 128 code positions, allocated to graphic characters and control characters (control codes).
Unicode has 1,114,112 code positions. About 100,000 of them have currently been allocated to characters, and many code points have been made permanently...
Is pass-by-value a reasonable default in C++11?
... especially around memory management (in the event that the object is heap-allocated)
4 Answers
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Can I use assert on Android devices?
...bug mode before logging the string, you are still constructing the string, allocating memory, calling the method, but then opting to do nothing. Stripping the class out then removes the calls entirely, meaning as long as your string is constructed inside the method call, it goes away as well.
Make ...
How to customize the background/border colors of a grouped table view cell?
...oPath(c, rect, 10.0f, 10.0f);
CGContextStrokePath(c);
}
- (void)dealloc {
[borderColor release];
[fillColor release];
[super dealloc];
}
@end
static void addRoundedRectToPath(CGContextRef context, CGRect rect,
float ovalWidth,float ovalHeight)
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Should image size be defined in the img tag height/width attributes or in CSS? [duplicate]
... image tag is a good practice..this way when the page loads there is space allocated for the image and the layout does not suffer any jerks even if the image takes a long time to load.
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impro...
Check if my app has a new version on AppStore
...bundleId=XXXXXXXXX";
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
[request setURL:[NSURL URLWithString:appInfoUrl]];
[request setHTTPMethod:@"GET"];
NSURLResponse *response;
NSError *error;
NSData *data = [NSURLConnection sendSynchronousRequest:request returningResponse: &am...
How do you clear a slice in Go?
...o reuse the slice (and the underlying array storage) so I'm not constantly allocating a new slice (with array). I've edited my question to clarify and to show some example code from the standard library.
– Chris Weber
Jun 7 '13 at 15:19
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Where do “pure virtual function call” crashes come from?
...s "pure virtual function call" scenario usually happens when the object is allocated on the memory pool, while an object is deleted, the underlying memory is actually not reclaimed by OS, it is still there accessible by the process.
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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...
Why can't I define a default constructor for a struct in .NET?
... new MyStruct[1000];
The CLR is able to do this very efficiently just by allocating the appropriate memory and zeroing it all out. If it had to run the MyStruct constructor 1000 times, that would be a lot less efficient. (In fact, it doesn't - if you do have a parameterless constructor, it doesn't...