mcs/errors/cs8201.cs

   1 // CS8201: Out variable and pattern variable declarations are not allowed within a query clause
   2 // Line: 11
   3
   4 using System.Linq;
   5
   6 class Program
   7 {
   8         public static void Main ()
   9         {
  10                 var a = "abcdef";
  11                 var res = from x in a from y in M (a, out var z) select x;
  12         }
  13
  14         public static T M<T>(T x, out T z) => z = x;
  15 }