No, strings are passed by reference, it's just that the string type is immutable. Passing a string to a function doesn't create a copy, but there's also no way

No, strings are passed by reference, it's just that the string type is immutable. Passing a string to a function doesn't create a copy, but there's also no way for the callee to modify the object that the caller points to. It is true that C# has value types that are by default passed by copy, though.