AcornPublishing_essential-csharp-7e/EssentialCSharp-8.0/src/Chapter12/Listing12.34.CombiningConstraintsUsingOrRelationshipNotAllowed.cs
namespace AddisonWesley.Michaelis.EssentialCSharp.Chapter12.Listing12_30
{
    public class BinaryTree<T>
        // Error: OR is not supported
        //where T: System.IComparable<T> || System.IFormattable
    {
        // ...
    }
}
