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FileSystemWatcher Changed event is raised twice
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I am afraid that this is a well-known bug/feature of the FileSystemWatcher class. This is from the documentation of the class:
You may notice in certain situations that a single creation event generates multiple Created events that are handled by your co...
Calling C++ class methods via a function pointer
...mal* pAnimal = (*pNew)();
pAnimal->makeNoise();
return 0;
}
Now although you can normally use a Dog* in the place of an Animal* thanks to the magic of polymorphism, the type of a function pointer does not follow the lookup rules of class hierarchy. So an Animal method pointer is not ...
Getting started with Haskell
...ing tutorials and watching screencasts, but nothing really seems to stick.
Now, in learning various imperative/OO languages (like C, Java, PHP), exercises have been a good way for me to go. But since I don't really know what Haskell is capable of and because there are many new concepts to utilize, I...
Emacs in Windows
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I use EmacsW32, it works great. EDIT: I now use regular GNU Emacs 24, see below.
See its EmacsWiki page for details.
To me, the biggest advantage is that:
it has a version of emacsclient that starts the Emacs server if no server is running (open all your files ...
Moving average or running mean
... each position in the window, are sometimes called the convolution kernel. Now, the arithmetic mean of N values is (x_1 + x_2 + ... + x_N) / N, so the corresponding kernel is (1/N, 1/N, ..., 1/N), and that's exactly what we get by using np.ones((N,))/N.
Edges
The mode argument of np.convolve speci...
How to disable all caps menu titles in Visual Studio
...he notification from Brian Harry of Microsoft:
Mixed Case Menus – I know I’m going to get some feedback on this one :) This is a long standing request by a vocal portion of the VS user base since VS 2012 to change the “ALL CAPS” menus. In VS 2013 Update 3, we have added a Tools –>...
Homebrew’s `git` not using completion
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I have already installed git without brew. Now I want to install bash_completion using brew. I ran brew install bash-completion and added above code but no luck
– MagePsycho
Sep 3 '14 at 6:35
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Cache busting via params
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That blog post is approaching a decade old now. Do you think that cache providers and CDNs have yet to accommodate it? Squid seems to be able to cache documents with query strings now.
– jeteon
Mar 9 '16 at 22:44
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How to put a UserControl into Visual Studio toolBox
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In VS2012 they have now added the hint 'The current solution must be re-opened for this to take effect' to the options dialog.
– Carlos P
Nov 28 '13 at 20:08
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Add a reference column migration in Rails 4
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Now, if you use the special generator syntax for migrations, Rails 4.2 will automatically create the correct migration with foreign key constraints included. rails g migration AddUserToUploads user:references produces add_ref...