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What should my Objective-C singleton look like? [closed]
...)
{
initialized = YES;
sharedSingleton = [[MySingleton alloc] init];
}
}
share
edited Sep 27 '11 at 2:14
js...
Releasing memory in Python
...
Memory allocated on the heap can be subject to high-water marks. This is complicated by Python's internal optimizations for allocating small objects (PyObject_Malloc) in 4 KiB pools, classed for allocation sizes at multiples of 8 by...
C++11 emplace_back on vector?
...
If you do not want to (or cannot) add a constructor, specialize allocator for T (or create your own allocator).
namespace std {
template<>
struct allocator<T> {
typedef T value_type;
value_type* allocate(size_t n) { return static_cast<value_type*>...
How do you detect/avoid Memory leaks in your (Unmanaged) code? [closed]
...ary of those articles. First, include these headers:
#define _CRTDBG_MAP_ALLOC
#include <stdlib.h>
#include <crtdbg.h>
Then you need to call this when your program exits:
_CrtDumpMemoryLeaks();
Alternatively, if your program does not exit in the same place every time, you can call...
How to filter NSFetchedResultsController (CoreData) with UISearchDisplayController/UISearchBar
...llTableCell"];
if (cell == nil)
{
cell = [[[CallTableCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"CallTableCell"] autorelease];
}
[self fetchedResultsController:[self fetchedResultsControllerForTableView:theTableView] configureCell:cell atIndexPat...
Why use pointers? [closed]
...ng "char array" to another variable, that only got a certain limited space allocated. You would most likely end up writing over something else in the memory and cause your program to crash (if you are lucky).
Oh, and if you don't assign a string value to the char array / pointer when you declare it...
What is the difference between vmalloc and kmalloc?
I've googled around and found most people advocating the use of kmalloc , as you're guaranteed to get contiguous physical blocks of memory. However, it also seems as though kmalloc can fail if a contiguous physical block that you want can't be found.
What are the advantages of having a contig...
Declaring variables inside loops, good practice or bad practice?
...n be performed more efficiently by the compiler (most importantly register allocation), since it knows that the variable cannot be used outside of the loop. For example, no need to store the result for later re-use.
In short, you are right to do it.
Note however that the variable is not supposed ...
Where in memory are my variables stored in C?
...red in functions), variables (in main function), pointers, and dynamically allocated space (using malloc and calloc) get stored in memory?
...
What's the difference between a temp table and table variable in SQL Server?
...t where statement rolled back due to constraint violation.
Update
Delete
Deallocate
The transaction log records were almost identical for all operations.
The table variable version actually has a few extra log entries because it gets an entry added to (and later removed from) the sys.syssingleo...