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Why use Abstract Base Classes in Python?

...emented classes. Long version There is a contract between a class and its callers. The class promises to do certain things and have certain properties. There are different levels to the contract. At a very low level, the contract might include the name of a method or its number of parameters. In a s...
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__FILE__ macro shows full path

....com/pipermail/cmake/2013-January/053117.html I'm copying the tip so it's all on this page: set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D__FILENAME__='\"$(subst ${CMAKE_SOURCE_DIR}/,,$(abspath $<))\"'") If you're using GNU make, I see no reason you couldn't extend this to your own makefiles. ...
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Passing an Array as Arguments, not an Array, in PHP

...dard func($arg1, $arg2) manner. But now I'm lost on how to do it. I recall the manner of passing by reference, how to "glob" incoming parameters ... but not how to de-list the array into a list of arguments. ...
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get current url in twig template?

...ttributes.get('_route_params')) %} The app global view variable contains all sorts of useful shortcuts, such as app.session and app.security.token.user, that reference the services you might use in a controller. share ...
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Why doesn't GCC optimize a*a*a*a*a*a to (a*a*a)*(a*a*a)?

...scientific application. One thing I noticed is that GCC will optimize the call pow(a,2) by compiling it into a*a , but the call pow(a,6) is not optimized and will actually call the library function pow , which greatly slows down the performance. (In contrast, Intel C++ Compiler , executable ...
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How to TryParse for Enum value?

....Val1|MyEnum.Val2" which is a combination of two enum values. If you just call Enum.IsDefined with this string, it will return false, even though Enum.Parse handles it correctly. Update As mentioned by Lisa and Christian in the comments, Enum.TryParse is now available for C# in .NET4 and up. MSDN...
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Commands executed from vim are not recognizing bash command aliases

...ell only loads ~/.zshrc for interactive shells, but it loads ~/.zshenv for all shells, so I moved my alias setup there and it now works from within Vim. See man zsh (or your shell's man pages) for more. – Nathan Long Feb 8 '14 at 22:52 ...
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What's the best UI for entering date of birth? [closed]

...ry fast. For a not so advanced user I suggest using a datepicker. Since usually you also have advanced and non-advanced users I suggest a combination of text input and datepicker. share | improve th...
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Merge a Branch into Trunk

... Really? Without risking remerging the same changesets? Can you provide a link to corroborating evidence of this please. – Neutrino Apr 3 '12 at 16:56 ...
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How can I swap positions of two open files (in splits) in vim?

... 'hide buf' markedBuf endfunction nmap <silent> <leader>mw :call MarkWindowSwap()<CR> nmap <silent> <leader>pw :call DoWindowSwap()<CR> To use (assuming your mapleader is set to \) you would: Move to the window to mark for the swap via ctrl-w movement Type ...