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C++ performance challenge: integer to std::string conversion

... #include <string> const char digit_pairs[201] = { "00010203040506070809" "10111213141516171819" "20212223242526272829" "30313233343536373839" "40414243444546474849" "50515253545556575859" "60616263646566676869" "70717273747576777879" "8081...
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PEP 8, why no spaces around '=' in keyword argument or a default parameter value?

... I guess that it is because a keyword argument is essentially different than a variable assignment. For example, there is plenty of code like this: kw1 = some_value kw2 = some_value kw3 = some_value some_func( 1, 2, kw1=kw1, ...
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AngularJS : Prevent error $digest already in progress when calling $scope.$apply()

... Don't use this pattern - This will end up causing more errors than it solves. Even though you think it fixed something, it didn't. You can check if a $digest is already in progress by checking $scope.$$phase. if(!$scope.$$phase) { //$digest or $apply } $scope.$$phase will return "$d...
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Static Indexers?

...e a reference to any particular instance of the class, you can't use this with them, and consequently you can't use indexer notation on static methods. The solution to your problem is using a singleton pattern as follows: public class Utilities { private static ConfigurationManager _configurat...
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How to store standard error in a variable

... It would be neater to capture the error file thus: ERROR=$(</tmp/Error) The shell recognizes this and doesn't have to run 'cat' to get the data. The bigger question is hard. I don't think there's an easy way to do it....
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How bad is shadowing names defined in outer scopes?

I just switched to Pycharm and I am very happy about all the warnings and hints it provides me to improve my code. Except for this one which I don't understand: ...
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Show and hide a View with a slide up/down animation

I have a LinearLayout that I want to show or hide with an Animation that pushes the layout upwards or downwards whenever I change its visibility. ...
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Convert HTML + CSS to PDF [closed]

...ave an HTML (not XHTML) document that renders fine in Firefox 3 and IE 7. It uses fairly basic CSS to style it and renders fine in HTML. ...
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Android: Difference between onInterceptTouchEvent and dispatchTouchEvent?

...ate about explaining this. dispatchTouchEvent is actually defined on Activity, View and ViewGroup. Think of it as a controller which decides how to route the touch events. For example, the simplest case is that of View.dispatchTouchEvent which will route the touch event to either OnTouchListener....
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How do I write unit tests in PHP? [closed]

...Could someone perhaps post a piece of example code and how they would test it? If it's not too much trouble :) 11 Answers ...