How do you implement GetHashCode for structure with two string, when both strings are interchangeable

Question

I have a structure in C#:

public struct UserInfo
{
   public string str1
   {
     get;
     set;
   }

   public string str2
   {
     get;
     set;
   }           


        

Answer 1

Ah yes, as Gary Shutler pointed out:

return str1.GetHashCode() + str2.GetHashCode();

Can overflow. You could try casting to long as Artem suggested, or you could surround the statement in the unchecked keyword:

return unchecked(str1.GetHashCode() + str2.GetHashCode());