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-- { dg-do compile }
-- { dg-options "-gnata" }
procedure Expr_Func8 is
type Node_Set is array (Positive range <>) of Integer;
function Nodes return Node_Set is
((1,2,3,4,5,6,7,8,9));
X1 : Boolean := (for all N of Nodes => N = N);
function Predecessors (N : Integer) return Node_Set Is
(Nodes (1 .. N - 1));
function Successors (N : Integer) return Node_Set Is
(Nodes (N + 1 .. Nodes'Last));
pragma Assert
(for all N of Nodes =>
(for some S of Successors (N) => S = N));
X2 : Boolean :=
(for all N of Nodes =>
(for some S of Successors (N) => S = N));
X3 : Boolean :=
(for all N of Nodes =>
(for some S of Successors (N) => S = N)) with Ghost;
pragma Assert
(for all N of Nodes =>
(for all P of Predecessors (N) =>
(for some S of Successors (P) => S = N)));
begin
null;
end;
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