What are some common issues with C# structs?

Some common issues with C# structs include:

1. Is a struct a value type or a reference type?
2. Structures are value types, while classes are reference types.
3. What is the difference between structures and classes?
4. Structs are value types, while classes are reference types.
5. Structs allocate memory on the stack, while classes allocate memory on the heap.
6. Structures do not have inheritance, while classes can inherit from other classes.
7. Structs cannot have a default parameterless constructor, while classes can have one.
8. What are the applications of using a struct?
9. Structures are suitable for representing simple data types, such as coordinates and colors.
10. Structures are suitable for situations where efficient value copying is needed, such as passing parameters or returning values.
11. What is the default constructor for a structure?
12. Structures do not have a default parameterless constructor, so you must explicitly define a constructor to initialize all member variables.
13. Can a struct inherit from another struct?
14. A struct cannot inherit from another struct, but it can implement interfaces.
15. Can structures have destructors?
16. Structures cannot have destructors because structures do not have a garbage collection mechanism.
17. Can structures be inherited?
18. Structs cannot inherit, but they can implement interfaces.
19. What are the performance differences between structures and classes?
20. Structures are allocated memory on the stack, which allows for faster access, but copying structures incurs higher overhead.
21. Class instances allocate memory on the heap, which makes them slower to access but cheaper to copy references.

These are some common C# struct issues, but there are also more advanced questions to explore.