The IStructuralEquatable.Equals(object, IEqualityComparer) method supports custom structural comparison of array and tuple objects. This method in turn calls the comparer object's IEqualityComparer.Equals(object, object) method to compare individual array elements or tuple components, starting with the first element or component. The individual calls to IEqualityComparer.Equals(object, object) end and the IStructuralEquatable.Equals(object, IEqualityComparer) method returns a value either when a method call returns false or after all array elements or tuple components have been compared.