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-- C460009.A

--

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--     Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,

--     F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained

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--     released technical data and computer software in whole or in part, in

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--                                    DISCLAIMER

--

--     ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR

--     DISCLOSED ARE AS IS.  THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED

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--     SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE

--     OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A

--     PARTICULAR PURPOSE OF SAID MATERIAL.

--*

--

-- OBJECTIVE:

--     Check that Constraint_Error is raised in cases of null arrays when:

--     1.  an assignment is made to a null array if the length of each

--         dimension of the operand does not match the length of

--         the corresponding dimension of the target subtype.

--     2.  an array actual parameter does not match the length of

--         corresponding dimensions of the formal in out parameter where

--         the actual parameter has the form of a type conversion.

--     3.  an array actual parameter does not match the length of

--         corresponding dimensions of the formal out parameter where

--         the actual parameter has the form of a type conversion.

--

-- TEST DESCRIPTION:

--      This transition test creates examples where array of null ranges

--      raises Constraint_Error if any of the lengths mismatch.

--

--      Inspired by C52103S.ADA, C64105E.ADA, and C64105F.ADA.

--

--

-- CHANGE HISTORY:

--      21 Mar 96   SAIC    Initial version for ACVC 2.1.

--      21 Sep 96   SAIC    ACVC 2.1: Added new case.

--

--!

with Report;

procedure C460009 is

   subtype Int is Integer range 1 .. 3;

begin

   Report.Test("C460009","Check that Constraint_Error is raised in "  &

               "cases of null arrays if any of the lengths mismatch " &

               "in assignments and parameter passing");

   ---------------------------------------------------------------------------

   declare

      type Arr_Int1 is array (Int range <>) of Integer;

      Arr_Obj1 : Arr_Int1 (2 .. Report.Ident_Int(1));     -- null array object

   begin

      -- Same lengths, no Constraint_Error raised.

      Arr_Obj1 := (Report.Ident_Int(3) .. 2 => Report.Ident_Int(1));

      Report.Comment ("Dead assignment prevention in Arr_Obj1 => " &

                       Integer'Image (Arr_Obj1'Last));

   exception

      when Constraint_Error =>

        Report.Failed ("Arr_Obj1 - Constraint_Error exception raised");

      when others           =>

        Report.Failed ("Arr_Obj1 - others exception raised");

   end;

   ---------------------------------------------------------------------------

   declare

      type Arr_Int2 is array (Int range <>, Int range <>) of Integer;

      Arr_Obj2 : Arr_Int2 (1 .. Report.Ident_Int(2),

                           Report.Ident_Int(3) .. Report.Ident_Int(2));

                                                           -- null array object

   begin

      -- Same lengths, no Constraint_Error raised.

      Arr_Obj2 := Arr_Int2'(Report.Ident_Int(2) .. 3 =>

                  (Report.Ident_Int(2) .. Report.Ident_Int(1) =>

                   Report.Ident_Int(1)));

      Report.Comment ("Dead assignment prevention in Arr_Obj2 => " &

                       Integer'Image (Arr_Obj2'Last));

   exception

      when Constraint_Error =>

        Report.Failed ("Arr_Obj2 - Constraint_Error exception raised");

      when others           =>

        Report.Failed ("Arr_Obj2 - others exception raised");

   end;

   ---------------------------------------------------------------------------

   declare

      type Arr_Int3 is array (Int range <>, Int range <>) of Integer;

      Arr_Obj3 : Arr_Int3 (1 .. Report.Ident_Int(2),

                           Report.Ident_Int(3) .. Report.Ident_Int(2));

                                                           -- null array object

   begin

      -- Lengths mismatch, Constraint_Error raised.

      Arr_Obj3 := Arr_Int3'(Report.Ident_Int(3) .. 2 =>

                  (Report.Ident_Int(1) .. Report.Ident_Int(3) =>

                   Report.Ident_Int(1)));

      Report.Comment ("Dead assignment prevention in Arr_Obj3 => " &

                       Integer'Image (Arr_Obj3'Last));

      Report.Failed ("Constraint_Error not raised in Arr_Obj3");

   exception

      when Constraint_Error => null;      -- exception expected.

      when others           =>

        Report.Failed ("Arr_Obj3 - others exception raised");

   end;

   ---------------------------------------------------------------------------

   declare

      type Arr_Int4 is array (Int range <>, Int range <>, Int range <>) of

        Integer;

      Arr_Obj4 : Arr_Int4 (1 .. Report.Ident_Int(2),

                           Report.Ident_Int(1) .. Report.Ident_Int(3),

                           Report.Ident_Int(3) .. Report.Ident_Int(2));

                                                           -- null array object

   begin

      -- Lengths mismatch, Constraint_Error raised.

      Arr_Obj4 := Arr_Int4'(Report.Ident_Int(1) .. 3 =>

                  (Report.Ident_Int(1) .. Report.Ident_Int(2) =>

                   (Report.Ident_Int(3) .. Report.Ident_Int(2) =>

                   Report.Ident_Int(1))));

      Report.Comment ("Dead assignment prevention in Arr_Obj4 => " &

                       Integer'Image (Arr_Obj4'Last));

      Report.Failed ("Constraint_Error not raised in Arr_Obj4");

   exception

      when Constraint_Error => null;      -- exception expected.

      when others           =>

        Report.Failed ("Arr_Obj4 - others exception raised");

   end;

   ---------------------------------------------------------------------------

   declare

      type Arr_Int5 is array (Int range <>) of Integer;

      Arr_Obj5 : Arr_Int5 (2 .. Report.Ident_Int(1));     -- null array object

   begin

      -- Only lengths of two null ranges are different, no Constraint_Error

      -- raised.

      Arr_Obj5 := (Report.Ident_Int(3) .. 1 => Report.Ident_Int(1));

      Report.Comment ("Dead assignment prevention in Arr_Obj5 => " &

                       Integer'Image (Arr_Obj5'Last));

   exception

      when Constraint_Error =>

        Report.Failed ("Arr_Obj5 - Constraint_Error exception raised");

      when others           =>

        Report.Failed ("Arr_Obj5 - others exception raised");

   end;

   ---------------------------------------------------------------------------

   declare

      subtype Str is String (Report.Ident_Int(5) .. 4);

                                                            -- null string

      Str_Obj : Str;

   begin

      -- Same lengths, no Constraint_Error raised.

      Str_Obj := (Report.Ident_Int(1) .. 0 => 'Z');

      Str_Obj(2 .. 1) := "";

      Str_Obj(4 .. 2) := (others => 'X');

      Str_Obj(Report.Ident_Int(6) .. 3) := "";

      Str_Obj(Report.Ident_Int(0) .. Report.Ident_Int(-1)) := (others => 'Y');

   exception

      when Constraint_Error =>

        Report.Failed ("Str_Obj - Constraint_Error exception raised");

      when others           =>

        Report.Failed ("Str_Obj - others exception raised");

   end;

   ---------------------------------------------------------------------------

   declare

      type Arr_Char5 is array (Int range <>, Int range <>) of Character;

      subtype Formal is Arr_Char5

        (Report.Ident_Int(2) .. 0, 1 .. Report.Ident_Int(3));

      Arr_Obj5 : Arr_Char5 (Report.Ident_Int(2) .. Report.Ident_Int(1),

                            Report.Ident_Int(1) .. Report.Ident_Int(2))

               := (Report.Ident_Int(2) .. Report.Ident_Int(1) =>

                  (Report.Ident_Int(1) .. Report.Ident_Int(2) => ' '));

      procedure Proc5 (P : in out Formal) is

      begin

         Report.Failed ("No exception raised in Proc5");

      exception

         when Constraint_Error =>

           Report.Failed ("Constraint_Error exception raised in Proc5");

         when others           =>

           Report.Failed ("Others exception raised in Proc5");

      end;

   begin

      -- Lengths mismatch in the type conversion, Constraint_Error raised.

      Proc5 (Formal(Arr_Obj5));

      Report.Failed ("Constraint_Error not raised in the call Proc5");

   exception

      when Constraint_Error => null;      -- exception expected.

      when others           =>

        Report.Failed ("Arr_Obj5 - others exception raised");

   end;

   ---------------------------------------------------------------------------

   declare

      type Formal is array

        (Report.Ident_Int(1) .. 3, 3 .. Report.Ident_Int(1)) of Character;

      type Actual is array

        (Report.Ident_Int(5) .. 3, 3 .. Report.Ident_Int(5)) of Character;

      Arr_Obj6 : Actual := (5 .. 3 => (3 .. 5 => ' '));

      procedure Proc6 (P : in out Formal) is

      begin

         Report.Failed ("No exception raised in Proc6");

      exception

         when Constraint_Error =>

           Report.Failed ("Constraint_Error exception raised in Proc6");

         when others           =>

           Report.Failed ("Others exception raised in Proc6");

      end;

   begin

      -- Lengths mismatch in the type conversion, Constraint_Error raised.

      Proc6 (Formal(Arr_Obj6));

      Report.Failed ("Constraint_Error not raised in the call Proc6");

   exception

      when Constraint_Error => null;      -- exception expected.

      when others           =>

        Report.Failed ("Arr_Obj6 - others exception raised");

   end;

   ---------------------------------------------------------------------------

   declare

      type Formal is array (Int range <>, Int range <>) of Character;

      type Actual is array (Positive range 5 .. 2,

                            Positive range 1 .. 3) of Character;

      Arr_Obj7 : Actual := (5 .. 2 => (1 .. 3 => ' '));

      procedure Proc7 (P : in out Formal) is

      begin

         if P'Last /= 2 and P'Last(2) /= 3 then

            Report.Failed ("Wrong bounds passed for Arr_Obj7");

         end if;

         -- Lengths mismatch, Constraint_Error raised.

         P := (1 .. 3 => (3 .. 0 => ' '));

         Report.Comment ("Dead assignment prevention in Proc7 => " &

                          Integer'Image (P'Last));

         Report.Failed ("No exception raised in Proc7");

      exception

         when Constraint_Error => null;      -- exception expected.

         when others           =>

           Report.Failed ("Others exception raised in Proc7");

      end;

   begin

      -- Same lengths, no Constraint_Error raised.

      Proc7 (Formal(Arr_Obj7));

      if Arr_Obj7'Last /= 2 and Arr_Obj7'Last(2) /= 3 then

         Report.Failed ("Bounds changed for Arr_Obj7");

      end if;

   exception

      when Constraint_Error =>

        Report.Failed ("Constraint_Error exception raised after call Proc7");

      when others           =>

        Report.Failed ("Arr_Obj7 - others exception raised");

   end;

   ---------------------------------------------------------------------------

   declare

      type Arr_Char8 is array (Int range <>, Int range <>) of Character;

      subtype Formal is Arr_Char8

        (Report.Ident_Int(2) .. 0, 1 .. Report.Ident_Int(3));

      Arr_Obj8 : Arr_Char8 (Report.Ident_Int(2) .. Report.Ident_Int(1),

                            Report.Ident_Int(1) .. Report.Ident_Int(2));

      procedure Proc8 (P : out Formal) is

      begin

         Report.Failed ("No exception raised in Proc8");

      exception

         when Constraint_Error =>

           Report.Failed ("Constraint_Error exception raised in Proc8");

         when others           =>

           Report.Failed ("Others exception raised in Proc8");

      end;

   begin

      -- Lengths mismatch in the type conversion, Constraint_Error raised.

      Proc8 (Formal(Arr_Obj8));

      Report.Failed ("Constraint_Error not raised in the call Proc8");

   exception

      when Constraint_Error => null;      -- exception expected.

      when others           =>

        Report.Failed ("Arr_Obj8 - others exception raised");

   end;

   ---------------------------------------------------------------------------

   declare

      type Formal is array

        (Report.Ident_Int(1) .. 3, 3 .. Report.Ident_Int(1)) of Character;

      type Actual is array

        (Report.Ident_Int(5) .. 3, 3 .. Report.Ident_Int(5)) of Character;

      Arr_Obj9 : Actual;

      procedure Proc9 (P : out Formal) is

      begin

         Report.Failed ("No exception raised in Proc9");

      exception

         when Constraint_Error =>

           Report.Failed ("Constraint_Error exception raised in Proc9");

         when others           =>

           Report.Failed ("Others exception raised in Proc9");

      end;

   begin

      -- Lengths mismatch in the type conversion, Constraint_Error raised.

      Proc9 (Formal(Arr_Obj9));

      Report.Failed ("Constraint_Error not raised in the call Proc9");

   exception

      when Constraint_Error => null;      -- exception expected.

      when others           =>

        Report.Failed ("Arr_Obj9 - others exception raised");

   end;

   ---------------------------------------------------------------------------

   declare

      type Formal is array (Int range <>, Int range <>) of Character;

      type Actual is array (Positive range 5 .. 2,

                            Positive range 1 .. 3) of Character;

      Arr_Obj10 : Actual;

      procedure Proc10 (P : out Formal) is

      begin

         if P'Last /= 2 and P'Last(2) /= 3 then

            Report.Failed ("Wrong bounds passed for Arr_Obj10");

         end if;

         -- Lengths mismatch, Constraint_Error raised.

         P := (1 .. 3 => (3 .. 1 => ' '));

         Report.Comment ("Dead assignment prevention in Proc10 => " &

                          Integer'Image (P'Last));

         Report.Failed ("No exception raised in Proc10");

      exception

         when Constraint_Error => null;      -- exception expected.

         when others           =>

           Report.Failed ("Others exception raised in Proc10");

      end;

   begin

      -- Same lengths, no Constraint_Error raised.

      Proc10 (Formal(Arr_Obj10));

      if Arr_Obj10'Last /= 2 and Arr_Obj10'Last(2) /= 3 then

         Report.Failed ("Bounds changed for Arr_Obj10");

      end if;

   exception

      when Constraint_Error =>

        Report.Failed ("Constraint_Error exception raised after call Proc10");

      when others           =>

        Report.Failed ("Arr_Obj10 - others exception raised");

   end;

   ---------------------------------------------------------------------------

   Report.Result;

end C460009;