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What is the “FS”/“GS” register intended for?
...ss of thread_local data is a happy unintended consequence of an historical error.
– Richard Hodges
Jan 4 '18 at 12:41
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show 48 more comment...
What is the __del__ method, How to call it?
... than complicated.
Special cases aren't special enough to break the rules.
Errors should never pass silently.
In the face of ambiguity, refuse the temptation to guess.
There should be one – and preferably only one – obvious way to do it.
If the implementation is hard to explain, it's a bad idea....
REST vs JSON-RPC? [closed]
...ne of code.
Last but not least, using HTTP as an RPC protocol is a huge error according to the designer of HTTP 1.1 (and inventor of REST): http://www.ics.uci.edu/~fielding/pubs/dissertation/evaluation.htm#sec_6_5_2
shar...
Why is a combiner needed for reduce method that converts type in java 8
.... But you pass to it an int and a String, which results in the compilation error you got - argument mismatch; int cannot be converted to java.lang.String. Actually, I think passing 0 as the identity value is also wrong here, since a String is expected (T).
Also note that this version of reduce proc...
Why is the C++ STL is so heavily based on templates? (and not on *interfaces*)
...s.
The only problem I see with STL, and templates in general is the awful error messages.
Which will be solved using Concepts in C++0X.
Comparing STL to Collections in Java is Like comparing Taj Mahal to my house :)
sha...
What is the difference between “INNER JOIN” and “OUTER JOIN”?
...at the WHERE clause (if present) logically runs after the join. One common error is to perform a left outer join and then include a WHERE clause with a condition on the right table that ends up excluding the non matching rows. The above ends up performing the outer join...
... And then the "Where" ...
How do you detect where two line segments intersect? [closed]
...er a JavaScript implementation following @Matt. I made corrections for the errors pointed out by Tekito.
– pgkelley
Aug 29 '13 at 4:10
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sho...
How do iOS Push Notifications work?
...nformation about the HTTP/2 request format, and the possible responses and errors from APNs, see Communicating with APNs.
Send the HTTP/2 request to APNs, including cryptographic credentials in the form of a token or a certificate, over a persistent, secure channel.
Establishing this secure channel ...
Which is more preferable to use: lambda functions or nested functions ('def')?
...f p(x): print x
works as expected, while
lambda x: print x
is a SyntaxError.
Of course, there are workarounds - substitute print with sys.stdout.write, or import with __import__. But usually you're better off going with a function in that case.
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Why doesn't C++ have a garbage collector?
...while in C++ RAII is implicit so that the user CANNOT unwittingly make the error (by omitting the using keyword)
3. Smart Pointers
Smart pointers often appear as a silver bullet to handle memory in C++. Often times I have heard: we don't need GC after all, since we have smart pointers.
One could...