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Determine if running on a rooted device
...ss is being created on every launch of application. At first these zombies allocate 0KB but than something happens and zombie processes are holding nearly same KBs as my application's main process and they became standart processes.
There is a bug report for same issue on bugs.sun.com: http://bugs....
Objective-C categories in static library
...aining a class name, request a class pointer for that name and dynamically allocate the class. E.g. instead of
MyCoolClass * mcc = [[MyCoolClass alloc] init];
I could also write
NSString * cname = @"CoolClass";
NSString * cnameFull = [NSString stringWithFormat:@"My%@", cname];
Class mmcClass = N...
Why should a function have only one exit-point? [closed]
...ns require more code since you have to do proper clean up of memory spaces allocated for variables. Consider a scenario where function allocates variables (resources) and getting out of the function early and without proper clean up would result in resource leaks. In addition, constructing clean-up ...
How many parameters are too many? [closed]
...umber of CPU registers, because anymore and the compiler will be forced to allocate them on the stack.
– Michaelangel007
Mar 31 '16 at 14:10
1
...
Difference between core and processor
... @Nrj, if you run one single-threaded application, it will be allocated to a single core, and activate only a single HW thread on it. That thread will be able to utilize 100% of that core as there is no other thread running along with it. If you activate another application it will usua...
Try catch statements in C
... a number of down sides (but is a fun mental exercise):
It will not free allocated memory as there are no deconstructors being called.
You can't have more than 1 try/catch in a scope (no nesting)
You can't actually throw exceptions or other data like in C++
Not thread safe at all
You are setting u...
Vertically align text to top within a UILabel
...abelFrame = CGRectMake(20, 20, 280, 150);
UILabel *myLabel = [[UILabel alloc] initWithFrame:labelFrame];
[myLabel setBackgroundColor:[UIColor orangeColor]];
NSString *labelText = @"I am the very model of a modern Major-General, I've information vegetable, animal, and mineral";
[myLa...
Convert ArrayList to String[] array [duplicate]
...
According to Joshua Bloch in Effective Java, preallocating the array harms performance. Provide a zero-length array instead. stockList.toArray(new String[0])
– Crashh
Mar 10 '18 at 3:20
...
What are file descriptors, explained in simple terms?
....h) opened by default on behalf of shell when the program starts.
FD's are allocated in the sequential order, meaning the lowest possible unallocated integer value.
FD's for a particular process can be seen in /proc/$pid/fd (on Unix based systems).
...
How to use PHP OPCache?
...econds) to check file timestamps for changes to the shared
;memory storage allocation.
opcache.revalidate_freq=60
;If enabled, a fast shutdown sequence is used for the accelerated code
;The fast shutdown sequence doesn't free each allocated block, but lets
;the Zend Engine Memory Manager do the wor...