c# - What changes does an object undergo during a cast in .net? -


i know happens object when cast. layout of object gets restructured or method table changes or ensure assignments don't break during runtime ?

none!

all doing "pretending" different type. of course, if doesn't inherit type (or instance of type when downcasting) cast fails , nothing (null) when using "as" operator cast, , explicit (c-style) cast throw.

unless, is, dealing value types (especially number types). if following:

double mydouble = 1.5f; int myint = (int)mydouble; double myotherdouble = (double)myint;

you 1 myint , myotherdouble, because number truncated when performing conversion. of other value types don't support kind of casting, because conversion not defined.


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