Are C# structs thread safe?

Question

Is a C# struct thread-safe?

For example if there is a:

struct Data
{
    int _number;
    public int Number { get { return _number; } set { _number =         


        

Answer 1

A struct is not any more thread-safe than an ordinary field or variable. If you have at least one thread modifying it, and at least one more thread touching it in any way at the same time, you may end up with unexpected/undefined behaviour.

Also, mutable structs are code smells. Is there some particular reason you need it to be a struct instead of a class? Do you need value-type semantics for this data?