gcc/testsuite/gnat.dg/aggr1.adb

   1 -- { dg-do run }
   2
   3 procedure aggr1 is
   4    package Coord is
   5       type T is private;
   6    private
   7       type T is record
   8           A, B, C : Float;
   9       end record;
  10    end Coord;
  11 --
  12    generic
  13       type T is private;
  14    package gen is
  15       type Rec (Discr : Boolean := True) is record
  16          needs_update : Boolean;
  17          case Discr is
  18             when True => null;
  19             when False =>  Value : T;
  20          end case;
  21       end record;
  22    end gen;
  23 --
  24    subtype Graph_Range is integer range 1..1665;
  25    type arr is array (Graph_Range) of Coord.T;
  26 --
  27    package Inst is new Gen (arr);
  28 --
  29    subtype Index is integer range 1 .. 1;
  30 --
  31    type Graph_Node (Active : Boolean := False) is
  32       record
  33          case Active is
  34             when True =>
  35                Comp1 : Inst.Rec;
  36                Comp2 : Inst.Rec;
  37                Comp3 : Inst.Rec;
  38             when False =>
  39                Needs_Update : Boolean;
  40          end case;
  41       end record;
  42 --
  43    Null_Graph_Node : constant Graph_Node := (False, True);
  44    type Graph_Table_T is array (Index) of Graph_Node;
  45 --
  46    Graph_Table   : Graph_Table_T := (others => (Null_Graph_Node));
  47    Graph_Table_1 : Graph_Table_T := (others => (False, True));
  48 begin
  49    null;
  50 end;