C# Error CS1629 – Unsafe code may not appear in iterators

C# Error

CS1629 – Unsafe code may not appear in iterators

Reason for the Error & Solution

Unsafe code may not appear in iterators

The C# language specification does not allow unsafe code in iterators.

The following sample generates CS1629:

// CS1629.cs  
// compile with: /unsafe
using System.Collections.Generic;  
class C
{  
   IEnumerator<int> IteratorMeth() {  
      int i;  
      unsafe  // CS1629  
      {  
         int *p = &i;  
         yield return *p;  
      }  
   }  
}