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Evaluating a mathematical expression in a string

...ppend(toks[0]) def pushUMinus(self, strg, loc, toks): if toks and toks[0] == '-': self.exprStack.append('unary -') def __init__(self): """ expop :: '^' multop :: '*' | '/' addop :: '+' | '-' integer :: ['+' | '-'] '0'..'9'+ ...
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Do while loop in SQL Server 2008

...ority.com/2007/10/24/sql-server-simple-example-of-while-loop-with-continue-and-break-keywords/ Example of WHILE Loop DECLARE @intFlag INT SET @intFlag = 1 WHILE (@intFlag <=5) BEGIN PRINT @intFlag SET @intFlag = @intFlag + 1 END GO ResultSet: 1 2 3 4 5 Example of WHILE L...
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What's the advantage of a Java enum versus a class with public static final fields?

... C#, such as the ability to easily assign an enum element a certain value, and consequently the ability to convert an integer to an enum without a decent amount of effort (i.e. Convert integer value to matching Java Enum ). ...
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Conditions for automatic generation of default/copy/move ctor and copy/move assignment operator?

... compiler typically auto generates a default constructor, copy constructor and assignment operator. 3 Answers ...
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How do I call one constructor from another in Java?

...tor from another (within the same class, not from a subclass)? If yes how? And what could be the best way to call another constructor (if there are several ways to do it)? ...
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What is the meaning of the /dist directory in open source projects?

...able", the compiled code/library. Folder structure varies by build system and programming language. Here are some standard conventions: src/: "source" files to build and develop the project. This is where the original source files are located, before being compiled into fewer files to dist/, publ...
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Can't specify the 'async' modifier on the 'Main' method of a console app

...) in VS2010 with the Async CTP. I have recent blog posts about async/await and asynchronous console programs in particular. Here's some background info from the intro post: If "await" sees that the awaitable has not completed, then it acts asynchronously. It tells the awaitable to run the remainder...
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java.lang.IllegalArgumentException: View not attached to window manager

I have an activity that starts AsyncTask and shows progress dialog for the duration of operation. The activity is declared NOT be recreated by rotation or keyboard slide. ...
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Editing screenshots in iTunes Connect after iOS app was approved

...ment interface -- how do I edit the screenshots for my localized (approved and live) iPhone app? 11 Answers ...
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Update R using RStudio

...se a different (previous, x32, x64) bit version. – Brandon Bertelsen Dec 1 '12 at 5:50 7 @Brandon...