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Regex Named Groups in Java

... (Update: August 2011) As geofflane mentions in his answer, Java 7 now support named groups. tchrist points out in the comment that the support is limited. He details the limitations in his great answer "Java Regex Helper" Java 7 regex name...
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What is memory fragmentation?

...emory fragmentation" used a few times in the context of C++ dynamic memory allocation. I've found some questions about how to deal with memory fragmentation, but can't find a direct question that deals with it itself. So: ...
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Guaranteed lifetime of temporary in C++?

...or the lifetime of a temporary variable that is created within a function call but not used as a parameter? Here's an example class: ...
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Setting Django up to use MySQL

...ine, you can use python manage.py runserver Adding the ip:port argument allows machines other than your own to access your development application. Once you are ready to deploy your application, I recommend taking a look at the chapter on Deploying Django on the djangobook Mysql default characte...
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MongoDB with redis

...oDB does not have yet an expiration mechanism. Capped collections cannot really be used to implement a real TTL. Redis has a TTL-based expiration mechanism, making it convenient to store volatile data. For instance, user sessions are commonly stored in Redis, while user data will be stored and index...
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.NET: Simplest way to send POST with data and read response

...d reference RFC2616 (w3.org/Protocols/rfc2616/rfc2616.txt). Answers from jball and BFree follow that attempt. – Chris Hutchinson Nov 3 '10 at 15:30 9 ...
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UltiSnips and YouCompleteMe

I have bundles ultisnips and youcompleteme installed on my macvim. The problem is that ultisnips doesn't work because tab is bound by ycm. I tried putting let g:UltiSnipsExpandTrigger = "<s-tab>" so that I can trigger the snippet completion with shift-tab, but it doesn't work for some unknow...
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Argparse: Required arguments listed under “optional arguments”?

... Parameters starting with - or -- are usually considered optional. All other parameters are positional parameters and as such required by design (like positional function arguments). It is possible to require optional arguments, but this is a bit against their desig...
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setTimeout / clearTimeout problems

... Christian C. SalvadóChristian C. Salvadó 689k171171 gold badges886886 silver badges826826 bronze badges add ...
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check if variable is dataframe

... answered Feb 11 '13 at 9:23 Jakub M.Jakub M. 25.6k3535 gold badges9797 silver badges158158 bronze badges ...