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Re-raise exception with a different type and message, preserving existing information

...ns that it can raise (e.g. inheriting from a FooError abstract class for all the foo module's specific exceptions). This allows users of the module to catch those particular exceptions and handle them distinctly, if needed. But many of the exceptions raised from the module are raised because of ...
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Concatenating two one-dimensional NumPy arrays

...smetic than substantial, but it's good when the API is consistent (e.g. if all the numpy functions that take variable length argument lists require explicit sequences). – Jim K. Aug 24 '16 at 20:43 ...
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Difference between classification and clustering in data mining? [closed]

...ome kind of relationship (by being closer together in some model). You normally don't find classes (if you think that you use clustering to find classes for classification). That is not the case. Instead, you have a training set at the beginning which consist of labelled items (so you know which cla...
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Duplicate symbols for architecture x86_64 under Xcode

...at defines an Objective-C class or category. While this option will typically result in a larger executable (due to additional object code loaded into the application), it will allow the successful creation of effective Objective-C static libraries that contain categories on existing classes...
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How do I get the title of the current active window using c#?

...-current-window-handle-and-caption-with-windows-api-in-c/ [DllImport("user32.dll")] static extern IntPtr GetForegroundWindow(); [DllImport("user32.dll")] static extern int GetWindowText(IntPtr hWnd, StringBuilder text, int count); private string GetActiveWindowTitle() { const int nChars = 256...
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View's getWidth() and getHeight() returns 0

I am creating all of the elements in my android project dynamically. I am trying to get the width and height of a button so that I can rotate that button around. I am just trying to learn how to work with the android language. However, it returns 0. ...
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Copy constructor versus Clone()

...r specified whether the Clone() method on ICloneable should be a deep or shallow clone, thus the interface is semantically broken as your callers won't know whether the call will deep or shallow clone the object. Instead, you should define your own IDeepCloneable (and IShallowCloneable) interfaces ...
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Realistic usage of the C99 'restrict' keyword?

...aw it mentioned. I read a brief description, stating that it would be basically a promise from the programmer that the pointer won't be used to point somewhere else. ...
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Use logging print the output of pprint

...at much overhead that it's worth the trouble of adding the conditionals to all the DEBUG log statements? – undefinedvariable Sep 29 '15 at 13:04 2 ...
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Is there any use for unique_ptr with array?

... Some people do not have the luxury of using std::vector, even with allocators. Some people need a dynamically sized array, so std::array is out. And some people get their arrays from other code that is known to return an array; and that code isn't going to be rewritten to return a vector or ...