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NSString property: copy or retain?
... unexpectedly is all your own. Imagine this scenario:
//person object has details of an individual you're assigning to a contact list.
Contact *contact = [[[Contact alloc] init] autorelease];
contact.name = person.name;
//person changes name
[[person name] setString:@"new name"];
//now both perso...
Is errno thread-safe?
...her replies, errno is a thread local variable.
However, there is a silly detail which could be easily forgotten. Programs should save and restore the errno on any signal handler executing a system call. This is because the signal will be handled by one of the process threads which could overwrite ...
How to find the kth largest element in an unsorted array of length n in O(n)?
...-1, i)
If i > k, return Select(G, n-k, i-k)
It's also very nicely detailed in the Introduction to Algorithms book by Cormen et al.
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Storing C++ template function definitions in a .CPP file
...+ keyword export help with template linker errors?
They go into a lot of detail about these (and other) template issues.
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How exactly does work?
...e the
user agent continues parsing the page.
The exact processing details for these
attributes are, for mostly historical
reasons, somewhat non-trivial,
involving a number of aspects of HTML.
The implementation requirements are
therefore by necessity scattered
throughout the spe...
Are PHP include paths relative to the file or the calling code?
...ctory of calling script (B.php) are both ignored). See my answer for more detail.
– Johnny Wong
Dec 19 '16 at 4:07
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What is an initialization block?
...erest." The accepted answer does seem to be exactly correct, simply not as detailed as yours.
– Glen Pierce
Apr 20 '17 at 1:32
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DateTime.ToString(“MM/dd/yyyy HH:mm:ss.fff”) resulted in something like “09/14/2013 07.20.31.371”
...n Bug. So a windows update on the client machine will fix the issue. More details are available in this blog post: heikniemi.net/hardcoded/2015/08/…
– Håkon Seljåsen
Apr 21 '16 at 8:39
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boost::flat_map and its performance compared to map and unordered_map
...an answer to Stack Overflow!Please be sure to answer the question. Provide details and share your research!But avoid …Asking for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips o...
Can you write virtual functions / methods in Java?
...n in C, and it's an incomplete one at best, and it's more misleading. The detail about all functions being virtual, and that you don't need abstract classes or interfaces to have virtual functions being noise. I never said they are required, you misread that. I'm not understanding your final poin...