Saturday, October 15, 2011

user-defined implicit type conversion - uptake in C#

Q: in real c# applications, do folks really create user-defined conversion in their own classes? Is this a rarely "used" feature like java vararg, java nested interfaces, java annotations, java dynamic proxy..? By "rarely used" i mean java developers seldom _create_ such features in their classes, though they may use these features in "off-the-shelf" libraries.

A c# veteran answered -- "It would likely be used primarily if you are creating an app framework ((library? not the same thing)), which occurs quite often still in each application silo .. We have a framework ((wrapping)) around Sql Server Analysis Services with Silverlight UI.  There are calculation engines which deal with Matrices and Vectors of data, so these types of structures would include some type conversion for the people using the framework."

((everything in double paranthses are my annotations))

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