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Using scanf() in C++ programs is faster than using cin?
... at runtime, it usually has an advantage of not requiring excessive memory allocations (this depends on your compiler and runtime). That said, unless performance is your only end goal and you are in the critical path then you should really favour the safer (slower) methods.
There is a very deliciou...
jQuery or javascript to find memory usage of page
...overwrite jQuery.data method to inform the tracking system about your data allocations.
Wrap html manipulations so that adding or removing content is also tracked (innerHTML.length is the best estimate).
If you keep large in-memory objects they should also be monitored.
As for event binding you s...
Achieving bright, vivid colors for an iOS 7 translucent UINavigationBar
...d:0.13f green:0.14f blue:0.15f alpha:1.00f];
UIView *colourView = [[UIView alloc] initWithFrame:CGRectMake(0.f, -20.f, 320.f, 64.f)];
colourView.opaque = NO;
colourView.alpha = .7f;
colourView.backgroundColor = barColour;
self.navigationBar.barTintColor = barColour;
[self.navigationBar.layer insertS...
Why does my application spend 24% of its life doing a null check?
... likely to already be adjacent in memory, and thus in the cache, since you allocated one after the other. With the GC heap compacting algorithm otherwise having an unpredictable affect on that. Best to not let me guess at this, measure so you know a fact.
– Hans Passant
...
Difference between VARCHAR and TEXT in MySQL [duplicate]
... (at least if you use mysqli without store_result), you maybe get a memory allocation error, because PHP tries to allocate 4 GB of memory to be sure the whole string can be buffered. This maybe also happens in other languages than PHP.
However, you should always check the input (Is it too long? Doe...
“register” keyword in C?
...at & would not be used, since that compiler actually made the register allocation decision on seeing the declaration, before looking at the following code. That is why the prohibition is in place. The 'register' keyword is essentially obsolete now.
– greggo
...
Removing an element from an Array (Java) [duplicate]
...inkedList. Iteration should be just as fast, and you avoid any resizes, or allocating too big of a list if you end up deleting lots of elements. You could use an ArrayList, and set the initial size to the length of input. It likely wouldn't make much of a difference.
...
Changing Font Size For UITableView Section Headers
...wForHeaderInSection:(NSInteger)section {
UILabel *myLabel = [[UILabel alloc] init];
myLabel.frame = CGRectMake(20, 8, 320, 20);
myLabel.font = [UIFont boldSystemFontOfSize:18];
myLabel.text = [self tableView:tableView titleForHeaderInSection:section];
UIView *headerView = [[UIV...
Android studio using > 100% CPU at all times - no background processes appear to be running
...NS
Increase these figures accordingly.
Xmx specifies the maximum memory allocation pool for a Java Virtual Machine (JVM).
Xms specifies the initial memory allocation pool.
i.e Your JVM will be started with Xms amount of memory and will be able to use a maximum of Xmx amount of memory.
...
Number of days between two NSDates [duplicate]
...ger unitFlags = NSDayCalendarUnit;
NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
NSDateComponents *components = [calendar components:unitFlags fromDate:dt1 toDate:dt2 options:0];
return [components day]+1;
}
E.g. if you want months as well...