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insert vs emplace vs operator[] in c++ map

...rom which the value_type can be constructed, which is where std::make_pair comes into play, as it allows for simple creation of std::pair objects, although it is probably not what you want... The net effect of the following calls is similar: K t; V u; std::map<K,V> m; // std::map&l...
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Relational Database Design Patterns? [closed]

...say I've heard a list of database patterns so much. I would also highly recommend David C. Hay's Data Model Patterns and the follow up A Metadata Map which builds on the first and is far more ambitious and intriguing. The Preface alone is enlightening. Also a great place to look for some pre-canne...
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How to get Ruby / Homebrew / RVM to work on Yosemite?

...error "Homebrew requires Leopard or higher. For Tiger support, see: github.com/mistydemeo/tigerbrew" even though I'm running yosemite – scientiffic Oct 21 '14 at 14:20 4 ...
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What's so bad about Template Haskell?

...efully! Going after TH-like capabilities for method defaults led to http://www.haskell.org/haskellwiki/GHC.Generics . While this is cool stuff, my only experience debugging code using these generics was nigh-impossible, due to the size of the type induced for and ADT as complicated as an AST. https...
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How to loop through array in jQuery?

...uilt function for the iterator if you have one handy, if your loop body is complex the scoping of a function call is sometimes useful, no need for an i variable in your containing scope. Disadvantages: If you're using this in the containing code and you want to use this within your forEach callback...
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Remove outline from select box in FF

... will be transparent too! So we must somehow display the text. text-shadow comes to the rescue: select { color: rgba(0,0,0,0); text-shadow: 0 0 0 #000; } We put a text shadow with no offset and no blur, so that replaces the text. Of course older browser don't understand anything of this, so w...
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IISExpress Log File Location

... http://www.iis.net/configreference/system.applicationhost/sites/sitedefaults <configuration> <system.applicationHost> <sites> <siteDefaults> <logFile log...
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Android Task Affinity Explanation

...andom places, they are all one. Slideshow with more explanation: http://www.slideshare.net/RanNachmany/manipulating-android-tasks-and-back-stack share | improve this answer | ...
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Uploading Files in ASP.net without using the FileUpload server control

...= Path.GetFileName(file.FileName); file.SaveAs(Server.MapPath(Path.Combine("~/App_Data/", fname))); } } share | improve this answer | follow | ...
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Do HTML5 custom data attributes “work” in IE 6?

...r that data- attributes are usable now and are far superior to the current common scheme of overloading the class attribute value to contain style info and random meta data. – Thomas Powell Mar 10 '10 at 21:42 ...