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fork() branches more than expected?
...e imagination. Until you get a feel for it, you should trace out on paper what each operation is and account for the number of processes. Don't forget that fork() creates a near-perfect copy of the current process. The most significant difference (for most purposes) is that fork()'s return value ...
How to get the error message from the error code returned by GetLastError()?
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What is the advantage of using your C version over FormatMessage directly?
– Micha Wiedenmann
Mar 14 '19 at 15:43
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How to check if a string contains text from an array of substrings in JavaScript?
...strings. This code checks if a string is one of the substrings. Depends on what is meant by "contains" I suppose.
– fcrick
May 29 '18 at 19:07
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How to use NULL or empty string in SQL
...ll of it. For example, you don't care whether the comparison fails because what remains is "abc" or " abc".
– ToolmakerSteve
Dec 9 '16 at 20:06
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Does R have an assert statement as in python?
...Nick, no. Use stopifnot() for validity testing, to test that code is doing what it's supposed to be doing, but if (blahdiblah) stop("error message") for input testing, to test that the input to the program is valid. Only the latter should ever happen during normal use.
– Harlan...
Maximum concurrent Socket.IO connections
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Do you know what size your instance was? Also just so anyone in the future knows some old browsers don't support WebSockets which is why the upgrade may be important for some.
– Ryan Soderberg
May 2...
Delete all the queues from RabbitMQ?
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Contrary to what @Rolice stated above, both delete_queue and purge_queue are available in rabbitmqctl and I've just run them successfully. Perhaps you're on an old version.
– Richard Dunn
Oct 25 '19...
Timeout expired. The timeout period elapsed prior to completion of the operation or the server is no
...rom your stack trace and your code you should be able to determine exactly what query that is.
This type of timeout can have three causes;
There's a deadlock somewhere
The database's statistics and/or query plan cache are incorrect
The query is too complex and needs to be tuned
A deadlock can ...
How to determine the longest increasing subsequence using dynamic programming?
...explanation helped clear things up for me, but it was hard for me to parse what everything was, so I made a Python implementation with overly-descriptive variable names and lots of comments. I did a naive recursive solution, the O(n^2) solution, and the O(n log n) solution.
I hope it helps clear u...
PCH File in Xcode 6
... to add it to your LLVM6.0 - Language section of Build Settings as Project/whateveryounamedyourpchfile.pch
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