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What kind of Garbage Collection does Go use?
...op-the-world
bitmap-based representation
zero-cost when the program is not allocating memory (that is: shuffling pointers around is as fast as in C, although in practice this runs somewhat slower than C because the Go compiler is not as advanced as C compilers such as GCC)
supports finalizers on obj...
What's the best way to put a c-struct in an NSArray?
... Will NSValue automatically free the memory of the struct when it is deallocated? The documentation is a little unclear on this.
– devios1
May 28 '15 at 23:08
1
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What is Node.js? [closed]
...like everyone else? In Node.js, a new connection is just a very small heap allocation. Spinning up a new process takes significantly more memory, a megabyte on some platforms. But the real cost is the overhead associated with context-switching. When you have 10^6 kernel threads, the kernel has to do...
How to control the line spacing in UILabel
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NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] initWithString:label.text];
NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init];
paragraphStyle.lineSpacing = spacing;
[attributedString addAttribute:NSParagraphStyleAttributeName value:par...
How do I integrate Ajax with Django applications?
...awareness. Finally, remember that post requests in Django require the csrf_token. With AJAX calls, a lot of times you'd like to send data without refreshing the page. You'll probably face some trouble before you'd finally remember that - wait, you forgot to send the csrf_token. This is a known begin...
Batch file to delete files older than N days
...[1]: Year-Month-Day
:epoch
setlocal ENABLEDELAYEDEXPANSION
for /f "tokens=1,2,3 delims=-" %%d in ('echo %1') do set Years=%%d& set Months=%%e& set Days=%%f
if "!Months:~0,1!"=="0" set Months=!Months:~1,1!
if "!Days:~0,1!"=="0" set Days=!Days:~1,1!
set /a Days=Days*day
...
How do I iterate over an NSArray?
...ion, without having to worry about the bureaucracy of memory management, reallocation etc. Of course this does come at a cost though. I think it's pretty obvious that say using an NSArray of NSNumbers is going to be slower than a C Array of floats for simple iterations, so I decided to do some tests...
Create objective-c class instance by name?
...
id object = [[NSClassFromString(@"NameofClass") alloc] init];
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Is it safe to delete a void pointer?
...sually work because information is stored along with the pointer about the allocation itself, so the deallocator can return it to the right place. In this sense it is "safe" as long as your allocator uses internal boundary tags. (Many do.)
However, as mentioned in other answers, deleting a void ...
Difference between string and char[] types in C++
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A char array is just that - an array of characters:
If allocated on the stack (like in your example), it will always occupy eg. 256 bytes no matter how long the text it contains is
If allocated on the heap (using malloc() or new char[]) you're responsible for releasing the memory...