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Can I call memcpy() and memmove() with “number of bytes” set to zero?

... the length of the array for a function, n can have the value zero on a call to that function. Unless explicitly stated otherwise in the description of a particular function in this subclause, pointer arguments on such a call shall still have valid values, as described in 7.1.4. On such a call...
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Get filename and path from URI from mediastore

... cursor.moveToFirst(); return cursor.getString(column_index); } finally { if (cursor != null) { cursor.close(); } } } share | improve this answer | f...
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PostgreSQL Crosstab Query

... Install the additional module tablefunc once per database, which provides the function crosstab(). Since Postgres 9.1 you can use CREATE EXTENSION for that: CREATE EXTENSION IF NOT EXISTS tablefunc; Improved test case CREATE ...
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Eclipse Kepler for OS X Mavericks request Java SE 6

I have just made a clean installation of OS X Mavericks , and I have downloaded Eclipse Kepler , but if I execute it, gives me this message: ...
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WPF - How to force a Command to re-evaluate 'CanExecute' via its CommandBindings

... RoutedCommand I've defined. The associated CommandBinding provides a callback for the evaluation of CanExecute which controls the enabled state of each MenuItem . ...
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Is there a recommended format for multi-line imports?

... Personally I go with parentheses when importing more than one component and sort them alphabetically. Like so: from Tkinter import ( Button, Canvas, DISABLED, END, Entry, Frame, LEFT, NORMAL, RI...
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rails - Devise - Handling - devise_error_messages

...hould help you get started. :) Another update The resource object is actually the model that is being used by devise (go figure). resource.class #=> User resource.errors.class #=> ActiveModel::Error It also appears to be defined in a higher scope (probably coming from the contro...
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How to create a density plot in matplotlib?

...with R. This is because gaussian_kde tries to infer the bandwidth automatically. You can play with the bandwidth in a way by changing the function covariance_factor of the gaussian_kde class. First, here is what you get without changing that function: However, if I use the following code: import...
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How do I ignore files in a directory in Git?

... This is actually a copy-paste from the git documentation – mcont Aug 17 '18 at 10:00 1 ...
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Windows 7, 64 bit, DLL problems

...++ 32-bit executable on my Windows 7 64-bit development box that also has all those Microsoft applications (Visual Studio 2008 + 2010, TFS, SDK, Microsoft Office)... And it's still running just fine. ...