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What is a semaphore?
...ost common (but nonetheless incorrect) answer to the question posed at the top is that mutexes and semaphores are very similar, with the only significant difference being that semaphores can count higher than one. Nearly all engineers seem to properly understand that a mutex is a binary flag used to...
What is the difference between “Rollback…” and “Back Out Submitted Changelist #####” in Perforce P4V
...ne item from anywhere in the stack.
Rolling back removes n items from the top of the stack.
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How to debug Ruby scripts [closed]
...the latter case, you'd type include? next to the magnifying glass near the top right corner, choose the include? which has Array underneath it (if you don't know what class [1, 2, 3] is, type [1, 2, 3].class in irb), and you get to include? (Array), which describes what it does.
However, if the doc...
Why can't enum's constructor access static fields?
...The refactored version is clearly correct, as static initialization occurs top to bottom.
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Git: Set up a fetch-only remote?
...h origin DISABLED), one can also use the pre-push hook.
One quick way to stop git push is to symlink /usr/bin/false to be the hook:
$ ln -s /usr/bin/false .git/hooks/pre-push
$ git push
error: failed to push some refs to '...'
Using a hook allows for more fine-grained control of pushes if desira...
Percentage Height HTML 5/CSS
... of parent width */
}
.square-content {
position: absolute;
left: 0;
top: 0;
height: 100%;
width: 100%;
}
The square container will just be made of padding, and the content will expand to fill the container. Long article from 2009 on this subject: http://alistapart.com/article/creating-i...
background function in Python
... showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg cla...
Why does 'continue' behave like 'break' in a Foreach-Object?
... showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg cla...
Remote Connections Mysql Ubuntu
...a
bind-address = 0.0.0.0 if you don't want to specify the IP
Then stop and restart MySQL with the new my.cnf entry. Once running go to the terminal and enter the following command.
lsof -i -P | grep :3306
That should come back something like this with your actual IP in the xxx's
mysqld ...
Thread pooling in C++11
...d_vector)
{ every_thread.join();}
thread_vector.clear();
stopped = true; // use this flag in destructor, if not set, call shutdown()
}
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