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Is the != check thread safe?
...loads of the same memory slot (a) close together, and optimizes the second one away. (In fact, there's a chance that it optimizes the test away entirely ...)
Now the race condition no longer manifests, because there are no longer two loads.
Note that this is all consistent with what the JLS allow...
How can I ssh directly to a particular directory?
I often have to login to one of several servers and go to one of several directories on those machines. Currently I do something of this sort:
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Where is Erlang used and why? [closed]
...o forgot the @ in front of your name - I think that it deserves an answer nonetheless)
– Walter Tross
Jul 7 '12 at 22:13
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Set selected radio from radio group with a value
...you first need to remove checked attribute from any of radio buttons under one radio buttons group only then you will be able to add checked property / attribute to one of the radio button in that radio buttons group.
Code To Remove Checked Attribute from all radio buttons of one radio button group...
Dynamically set local variable [duplicate]
...t aren't functions (so modules, class definitions, instances) are usually done by dictionary lookups (as Sven points out in the comments there are exceptions, for example classes that define __slots__). Function locals can be optimised for speed because the compiler (usually) knows all the names in ...
jQuery: Get selected element tag name
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pure JS solutions (like this one) are generally superior to jQuery ones especially if they do not suffer from browser compatibility problems or are much more verbose.
– Steven Lu
Jul 25 '12 at 16:24
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How do you maintain development code and production code? [closed]
...e branches merged in master.
dev (or integration branch, or 'next') is the one where the feature branch selected for the next release are tested together
maintenance (or hot-fix) branch is the one for the current release evolution/bug fixes, with possible merges back to dev and or master
That kind...
What are some (concrete) use-cases for metaclasses?
...n-interactive plotting, as a frontend to Matplotlib. However, on occasion one wants to do interactive plotting. With only a couple functions I found that I was able to increment the figure count, call draw manually, etc, but I needed to do these before and after every plotting call. So to create ...
How to delete migration files in Rails 3
...rake db:migrate VERSION=XXX on all environments, to the version before the one I want to delete.
Delete the migration file manually.
If there are pending migrations (i.e., the migration I removed was not the last one), I just perform a new rake db:migrate again.
If your application is already on p...
How to use LINQ to select object with minimum or maximum property value
...rty. Is there a way to use LINQ to query a list of Person objects for the one with the earliest/smallest DateOfBirth value.
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