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What is “:-!!” in C code?
I bumped into this strange macro code in /usr/include/linux/kernel.h :
5 Answers
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Forward declaring an enum in C++
...ardised. The logic is that if a feature is known (or highly likely) to be included in an updated standard, then usage of that feature before the standard is officially released tends to use the working name. (E.g., compilers that supported C++11 features before official standardisation in 2011 had...
Internet Explorer's CSS rules limits
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This script is inaccurate. You should include a branch for @media rules, see stackoverflow.com/a/25089619/938089.
– Rob W
Aug 1 '14 at 22:54
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Explaining Apache ZooKeeper
... to the ensemble, a majority of nodes persist the information: these nodes include the server for the client, and obviously the master. This means that each write makes the server up-to-date with the master. It also means, however, that you cannot have concurrent writes.
The guarantee of linear wr...
How to make child process die after parent exits?
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Under Linux, you can install a parent death signal in the child, e.g.:
#include <sys/prctl.h> // prctl(), PR_SET_PDEATHSIG
#include <signal.h> // signals
#include <unistd.h> // fork()
#include <stdio.h> // perror()
// ...
pid_t ppid_before_fork = getpid();
pid_t pid = f...
List directory tree structure in python?
... no guarantee of the order : "The list is in arbitrary order, and does not include the special entries '.' and '..' even if they are present in the directory."
– Aaron Hall♦
Apr 28 at 23:41
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Dynamically replace the contents of a C# method?
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Update: By including a reference to System.Reflection.Emit, Harmony now compiles and tests OK with .NET Core 3
– Andreas Pardeike
May 2 '19 at 5:48
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How to set up Spark on Windows?
...with the latest versions in November 2015. There are a number of problems including the fact that the Scala code tries to run a bash script (mahout/bin/mahout) which does not work of course, the sbin scripts have not been ported to windows, and the winutils are missing if hadoop is not installed.
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Differences between lodash and underscore [closed]
...core v1.4.x+.
In addition there are at least 3 Backbone boilerplates that include Lo-Dash by default and Lo-Dash is now mentioned in Backbone’s official documentation.
Check out Kit Cambridge's post, Say "Hello" to Lo-Dash, for a deeper breakdown on the differences between Lo-Dash and Underscore...
How to send email to multiple recipients using python smtplib?
...d to give the receipients one-by-one, which is why a list of adresses (not including names!) is the sensible API.
For the header, it can also contain for example the name, e.g. To: First Last <email@addr.tld>, Other User <other@mail.tld>. Your code example therefore is not recommended, ...