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No. The size of all the types in the struct , and thus the offset to each member from the beginning of the struct , is known at compile-time, so the address used to fetch the values in the struct is every bit as knowable as the addresses of individual variables.
Structs are preferable if they are relatively small and copiable because copying is way safer than having multiple references to the same instance as happens with classes. This is especially important when passing around a variable to many classes and/or in a multithreaded environment.
The only difference between these two methods is that the one allocates classes, and the other allocates structs. MeasureTestC allocates structs and runs in only 17 milliseconds which is 8.6 times faster than MeasureTestB which allocates classes!
I'm doing course 3354 (Implementing System Types and Interfaces in the .NET Framework 2.0) and it is said that for simple classes, with members variables and functions, it is better to use a struct than a class because of overhead.
I have never heard of such a thing, what is the validity of this claim?
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