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Learning Ruby on Rails
... and C# developer. The more and more I look at Ruby on Rails, the more I really want to learn it.
56 Answers
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How do you stop MySQL on a Mac OS install?
...starting from the MySQL System Preferences panel.
– Ross Henderson
Apr 16 '11 at 1:00
4
In my cas...
How to correctly save instance state of Fragments in back stack?
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This is not related to question, onSaveInstance is not called when fragment is putted to backstack
– Tadas Valaitis
Jan 7 '15 at 10:14
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可重入函数、不可重入函数及线程安全 - C/C++ - 清泛网 - 专注C/C++及内核技术
... fsync
pipe
sigaction
tcgetpgrp
cfgetospeed
ftruncate
poll
sigaddset
tcsendbreak
cfsetispeed
getegid
posix_trace_event
sigdelset
tcsetattr
cfsetospeed
geteuid
...
VBoxManage: error: Failed to create the host-only adapter
... should now be able to run vagrant up or vagrant reload and have your new host configured.
As mentioned in this answer, recent versions of macOS can block VirtualBox.
Solution:
Go to System Preferences > Security & Privacy Then hit the "Allow" button to let Oracle (VirtualBox) load.
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Lua简明教程 - 脚本技术 - 清泛IT论坛，有思想、有深度
...释器居然不到200k，这是多么地变态啊（/bin/sh都要1M，MacOS平台），而且能和C语言非常好的互动。我很好奇得浏览了一下Lua解释器的源码，这可能是我看过最干净的C的源码了。我不想写一篇大而全的语言手册，一方面是因为已经...
AtomicInteger lazySet vs. set
...l values for a while, but you'd
like to ensure that structures are eventually GCable. In such
cases, you can get better performance by avoiding
the costs of the null volatile-write. There are a few
other use cases along these lines for non-reference-based
atomics as well, so the method is ...
What's so wrong about using GC.Collect()?
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From Rico's Blog...
Rule #1
Don't.
This is really the most important
rule. It's fair to say that most
usages of GC.Collect() are a bad idea
and I went into that in some detail in
the orginal posting so I won't repeat
all that here. So let's move on to...
Rule #2
Consi...
Python vs Bash - In which kind of tasks each one outruns the other performance-wise? [closed]
... google shows many results that say that, as Python is byte-compiled is usually faster. I even found this that claims that you can see an improvement of over 2000% on dictionary-based operations.
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How can I profile Python code line-by-line?
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can anyone show how to actually use this library? The readme teaches how to install, and answers various FAQs, but doesn't mention how to use it after a pip install..
– cryanbhu
Jul 25 '18 at 3:28
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