gcc/testsuite/gnat.dg/predicate11.adb

   1 --  { dg-do compile }
   2 --  { dg-options "-gnata" }
   3
   4 procedure Predicate11 is
   5    type T_BYTES  is new Integer range 0 .. 2**15 - 1  with Size => 32;
   6    subtype TYPE5_SCALAR is T_BYTES
   7      with Dynamic_Predicate => TYPE5_SCALAR mod 4 = 0;
   8    subtype Cond is Integer
   9      with dynamic_predicate => (if cond < 5 then false else True);
  10
  11    Thing1 : Type5_Scalar := 7;  --  { dg-warning "check will fail at run time" }
  12    function OK (C :Type5_scalar) return Boolean is (True);
  13    Thing2 : Type5_Scalar;
  14    Thing3 : Cond;
  15 begin
  16    if not OK (7) then raise Program_Error; end if;  --  { dg-warning "check will fail at run time" }
  17    Thing2 := 8;
  18    Thing3 := 1;  --  { dg-warning "check will fail at run time" }
  19 end;