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IOCTL Linux device driver [closed]
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Another method for heavier use is netlink, which is an IPC (inter-process communication) method to talk to your driver over a BSD socket interface. This is used, for example, by the WiFi drivers. You then communicate with it from userspace using the libnl or libnl3 libraries.
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MySQL: determine which database is selected?
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In the comments of http://www.php.net/manual/de/function.mysql-db-name.php I found this one from ericpp % bigfoot.com:
If you just need the current database name, you can use MySQL's SELECT DATABASE() command:
<?php
function mysql_current...
What is the purpose of double curly braces in React's JSX syntax?
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@Brian: See github.com/facebook/react/issues/2256#issuecomment-63031960 (and github.com/facebook/react/blob/…).
– Felix Kling
Mar 1 '15 at 21:13
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How can I call a custom Django manage.py command directly from a test driver?
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Test for existence of nested JavaScript object key
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The optional chaining proposal reached Stage 3 on the ECMAScript committee process, this will allow you to safely access deeply nested properties, by using the token ?., the new optional chaining operator:
const value = obj?.level1?.level2?.level3
If any of the levels accessed is null ...
Java equivalent to #region in C#
...ate="collapsed" desc="Your Fold Comment">
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// </editor-fold>
http://forums.java.net/jive/thread.jspa?threadID=1311
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'typeid' versus 'typeof' in C++
...gives information about the runtime type of the value.
typeof Reference: http://www.delorie.com/gnu/docs/gcc/gcc_36.html
typeid Reference: https://en.wikipedia.org/wiki/Typeid
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Python: Why is functools.partial necessary?
..... you end up "faking assignments within an expression" by stretching list comprehension well beyond its design limits...:
>>> f = [f for f in (lambda f: int(s, base=2),)
if setattr(f, 'keywords', {'base': 2}) is None][0]
Now combine the named-arguments overridability, plus th...
How do I list the symbols in a .so file
...g symbols. c++filt can be used instead. Example script here: v8.googlecode.com/svn/branches/bleeding_edge/tools/mac-nm nm -g /usr/lib/libstdc++.6.dylib | c++filt -p -i
– fredbaba
Jun 12 '13 at 21:13
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How do I find out which settings.xml file maven is using
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