errors/cs1644-8.cs

   1 // CS1644: Feature `null coalescing operator' cannot be used because it is not part of the C# 1.0 language specification
   2 // Line: 10
   3 // Compiler options: -langversion:ISO-1
   4
   5 class C
   6 {
   7         string program;
   8
   9         internal string Program {
  10                 get { return program ?? string.Empty; }
  11         }
  12 }