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+-- C371003.A
+--
+-- Grant of Unlimited Rights
+--
+-- 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
+-- unlimited rights in the software and documentation contained herein.
+-- Unlimited rights are defined in DFAR 252.227-7013(a)(19). By making
+-- this public release, the Government intends to confer upon all
+-- recipients unlimited rights equal to those held by the Government.
+-- These rights include rights to use, duplicate, release or disclose the
+-- released technical data and computer software in whole or in part, in
+-- any manner and for any purpose whatsoever, and to have or permit others
+-- to do so.
+--
+-- DISCLAIMER
+--
+-- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
+-- DISCLOSED ARE AS IS. THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED
+-- WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
+-- 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 if a discriminant constraint depends on a discriminant,
+-- the evaluation of the expressions in the constraint is deferred
+-- until an object of the subtype is created. Check for cases of
+-- records where the component containing the constraint is present
+-- in the subtype.
+--
+-- TEST DESCRIPTION:
+-- This transition test defines record types with discriminant components
+-- which depend on the discriminants. The discriminants are calculated
+-- by function calls. The test verifies that Constraint_Error is raised
+-- during the object creations when values of discriminants are
+-- incompatible with the subtypes. Also check for cases, where the
+-- component is absent.
+--
+-- Inspired by C37213E.ADA, C37213G.ADA, C37215E.ADA, and C37215G.ADA.
+--
+--
+-- CHANGE HISTORY:
+-- 10 Apr 96 SAIC Initial version for ACVC 2.1.
+-- 14 Jul 96 SAIC Modified test description. Added exception handler
+-- for VObj_10 assignment.
+-- 26 Oct 96 SAIC Added LM references.
+--
+--!
+
+with Report;
+
+procedure C371003 is
+
+ subtype Small_Int is Integer range 1..10;
+
+ type Rec_W_Disc (Disc1, Disc2 : Small_Int) is
+ record
+ Str1 : String (1 .. Disc1) := (others => '*');
+ Str2 : String (1 .. Disc2) := (others => '*');
+ end record;
+
+ type My_Array is array (Small_Int range <>) of Integer;
+
+ Func1_Cons : Integer := 0;
+
+ ---------------------------------------------------------
+ function Chk (Cons : Integer;
+ Value : Integer;
+ Message : String) return Boolean is
+ begin
+ if Cons /= Value then
+ Report.Failed (Message & ": Func1_Cons is " &
+ Integer'Image(Func1_Cons));
+ end if;
+ return True;
+ end Chk;
+
+ ---------------------------------------------------------
+ function Func1 return Integer is
+ begin
+ Func1_Cons := Func1_Cons + Report.Ident_Int(1);
+ return Func1_Cons;
+ end Func1;
+
+
+begin
+ Report.Test ("C371003", "Check that if a discriminant constraint " &
+ "depends on a discriminant, the evaluation of the " &
+ "expressions in the constraint is deferred until " &
+ "object declarations");
+
+ ---------------------------------------------------------
+ declare
+ type VRec_01 (D3 : Integer) is
+ record
+ case D3 is
+ when -5..10 =>
+ C1 : Rec_W_Disc (D3, Func1); -- Func1 evaluated, value 1.
+ when others =>
+ C2 : Integer := Report.Ident_Int(0);
+ end case;
+ end record;
+
+ Chk1 : Boolean := Chk (Func1_Cons, 1,
+ "Func1 not evaluated for VRec_01");
+
+ VObj_1 : VRec_01(1); -- Func1 not evaluated again
+ VObj_2 : VRec_01(2); -- Func1 not evaluated again
+
+ Chk2 : Boolean := Chk (Func1_Cons, 1,
+ "Func1 evaluated too many times");
+
+ begin
+ if VObj_1 /= (D3 => 1,
+ C1 => (Disc1 => 1,
+ Disc2 => 1,
+ Str1 => (others => '*'),
+ Str2 => (others => '*'))) or
+ VObj_2 /= (D3 => 2,
+ C1 => (Disc1 => 2,
+ Disc2 => 1,
+ Str1 => (others => '*'),
+ Str2 => (others => '*'))) then
+ Report.Failed ("VObj_1 & VObj_2 - Discriminant values not correct");
+ end if;
+ end;
+
+ ---------------------------------------------------------
+ Func1_Cons := -11;
+
+ declare
+ type VRec_Of_VRec_01 (D3 : Integer) is
+ record
+ case D3 is
+ when -5..10 =>
+ C1 : Rec_W_Disc (Func1, D3); -- Func1 evaluated, value -10.
+ when others => -- Constraint_Error not raised.
+ C2 : Integer := Report.Ident_Int(0);
+ end case;
+ end record;
+
+ type VRec_Of_VRec_02 (D3 : Integer) is
+ record
+ case D3 is
+ when -5..10 =>
+ C1 : Rec_W_Disc (1, D3);
+ when others =>
+ C2 : Integer := Report.Ident_Int(0);
+ end case;
+ end record;
+
+ type VRec_Of_MyArr_01 (D3 : Integer) is
+ record
+ case D3 is
+ when -5..10 =>
+ C1 : My_Array (Func1..D3); -- Func1 evaluated, value -9.
+ when others => -- Constraint_Error not raised.
+ C2 : Integer := Report.Ident_Int(0);
+ end case;
+ end record;
+
+ type VRec_Of_MyArr_02 (D3 : Integer) is
+ record
+ case D3 is
+ when -5..10 =>
+ C1 : My_Array (D3..1);
+ when others =>
+ C2 : Integer := Report.Ident_Int(0);
+ end case;
+ end record;
+
+ begin
+
+ ---------------------------------------------------------
+ -- Component containing the constraint is present.
+ begin
+ declare
+ VObj_3 : VRec_Of_VRec_01(1); -- Constraint_Error raised.
+ begin
+ Report.Failed ("VObj_3 - Constraint_Error should be raised");
+ if VObj_3 /= (1, (1, 1, others => (others => '*'))) then
+ Report.Comment ("VObj_3 - Shouldn't get here");
+ end if;
+ end;
+
+ exception
+ when Constraint_Error => -- Exception expected.
+ null;
+ when others =>
+ Report.Failed ("VObj_3 - unexpected exception raised");
+ end;
+
+ ---------------------------------------------------------
+ -- Component containing the constraint is present.
+ begin
+ declare
+ subtype Subtype_VRec is -- No Constraint_Error raised.
+ VRec_Of_VRec_01(Report.Ident_Int(1));
+ begin
+ declare
+ VObj_4 : Subtype_VRec; -- Constraint_Error raised.
+ begin
+ Report.Failed ("VObj_4 - Constraint_Error should be raised");
+ if VObj_4 /= (D3 => 1,
+ C1 => (Disc1 => 1,
+ Disc2 => 1,
+ Str1 => (others => '*'),
+ Str2 => (others => '*'))) then
+ Report.Comment ("VObj_4 - Shouldn't get here");
+ end if;
+ end;
+
+ exception
+ when Constraint_Error => -- Exception expected.
+ null;
+ when others =>
+ Report.Failed ("VObj_4 - unexpected exception raised");
+ end;
+
+ exception
+ when Constraint_Error =>
+ Report.Failed ("Subtype_VRec - Constraint_Error raised");
+ when others =>
+ Report.Failed ("Subtype_VRec - unexpected exception raised");
+ end;
+
+ ---------------------------------------------------------
+ -- Component containing the constraint is absent.
+ begin
+ declare
+ type Arr is array (1..5) of
+ VRec_Of_VRec_01(Report.Ident_Int(-6)); -- No Constraint_Error
+ VObj_5 : Arr; -- for either declaration.
+
+ begin
+ if VObj_5 /= (1 .. 5 => (-6, 0)) then
+ Report.Comment ("VObj_5 - wrong values");
+ end if;
+ end;
+
+ exception
+ when others =>
+ Report.Failed ("Arr - unexpected exception raised");
+ end;
+
+ ---------------------------------------------------------
+ -- Component containing the constraint is present.
+ begin
+ declare
+ type Rec_Of_Rec_Of_MyArr is
+ record
+ C1 : VRec_Of_MyArr_01(1); -- No Constraint_Error raised.
+ end record;
+ begin
+ declare
+ Obj_6 : Rec_Of_Rec_Of_MyArr; -- Constraint_Error raised.
+ begin
+ Report.Failed ("Obj_6 - Constraint_Error should be raised");
+ if Obj_6 /= (C1 => (1, (1, 1))) then
+ Report.Comment ("Obj_6 - Shouldn't get here");
+ end if;
+ end;
+
+ exception
+ when Constraint_Error => -- Exception expected.
+ null;
+ when others =>
+ Report.Failed ("Obj_6 - unexpected exception raised");
+ end;
+
+ exception
+ when Constraint_Error =>
+ Report.Failed ("Rec_Of_Rec_Of_MyArr - Constraint_Error raised");
+ when others =>
+ Report.Failed ("Rec_Of_Rec_Of_MyArr - unexpected exception " &
+ "raised");
+ end;
+
+ ---------------------------------------------------------
+ -- Component containing the constraint is absent.
+ begin
+ declare
+ type New_VRec_Arr is
+ new VRec_Of_MyArr_01(11); -- No Constraint_Error raised
+ Obj_7 : New_VRec_Arr; -- for either declaration.
+
+ begin
+ if Obj_7 /= (11, 0) then
+ Report.Failed ("Obj_7 - value incorrect");
+ end if;
+ end;
+
+ exception
+ when others =>
+ Report.Failed ("New_VRec_Arr - unexpected exception raised");
+ end;
+
+ ---------------------------------------------------------
+ -- Component containing the constraint is present.
+ begin
+ declare
+ type New_VRec is new
+ VRec_Of_VRec_02(Report.Ident_Int(0)); -- No Constraint_Error
+ -- raised.
+ begin
+ declare
+ VObj_8 : New_VRec; -- Constraint_Error raised.
+ begin
+ Report.Failed ("VObj_8 - Constraint_Error should be raised");
+ if VObj_8 /= (1, (1, 1, others => (others => '*'))) then
+ Report.Comment ("VObj_8 - Shouldn't get here");
+ end if;
+ end;
+
+ exception
+ when Constraint_Error => -- Exception expected.
+ null;
+ when others =>
+ Report.Failed ("VObj_8 - unexpected exception raised");
+ end;
+
+ exception
+ when Constraint_Error =>
+ Report.Failed ("New_VRec - Constraint_Error raised");
+ when others =>
+ Report.Failed ("New_VRec - unexpected exception raised");
+ end;
+
+ ---------------------------------------------------------
+ -- Component containing the constraint is absent.
+ begin
+ declare
+ subtype Sub_VRec is
+ VRec_Of_VRec_02(Report.Ident_Int(11)); -- No Constraint_Error
+ VObj_9 : Sub_VRec; -- raised for either
+ -- declaration.
+ begin
+ if VObj_9 /= (11, 0) then
+ Report.Comment ("VObj_9 - wrong values");
+ end if;
+ end;
+
+ exception
+ when others =>
+ Report.Failed ("Sub_VRec - unexpected exception raised");
+ end;
+
+ ---------------------------------------------------------
+ -- Component containing the constraint is present.
+ begin
+ declare
+ type Acc_VRec_01 is access
+ VRec_Of_VRec_02(Report.Ident_Int(0)); -- No Constraint_Error
+ -- raised.
+ begin
+ declare
+ VObj_10 : Acc_VRec_01; -- No Constraint_Error
+ -- raised.
+ begin
+ VObj_10 := new VRec_Of_VRec_02
+ (Report.Ident_Int(0)); -- Constraint_Error
+ -- raised.
+ Report.Failed ("VObj_10 - Constraint_Error should be raised");
+ if VObj_10.all /= (1, (1, 1, others => (others => '*'))) then
+ Report.Comment ("VObj_10 - Shouldn't get here");
+ end if;
+
+ exception
+ when Constraint_Error => -- Exception expected.
+ null;
+ when others =>
+ Report.Failed ("VObj_10 - unexpected exception raised");
+ end;
+
+ exception
+ when Constraint_Error =>
+ Report.Failed ("VObj_10 - Constraint_Error exception raised");
+ when others =>
+ Report.Failed ("VObj_10 - unexpected exception raised at " &
+ "declaration");
+ end;
+
+ exception
+ when Constraint_Error =>
+ Report.Failed ("Acc_VRec_01 - Constraint_Error raised");
+ when others =>
+ Report.Failed ("Acc_VRec_01 - unexpected exception raised");
+ end;
+
+ ---------------------------------------------------------
+ -- Component containing the constraint is absent.
+ begin
+ declare
+ type Acc_VRec_02 is access
+ VRec_Of_VRec_02(11); -- No Constraint_Error
+ -- raised for either
+ VObj_11 : Acc_VRec_02; -- declaration.
+
+ begin
+ VObj_11 := new VRec_Of_VRec_02(11);
+ if VObj_11.all /= (11, 0) then
+ Report.Comment ("VObj_11 - wrong values");
+ end if;
+ end;
+
+ exception
+ when others =>
+ Report.Failed ("Acc_VRec_02 - unexpected exception raised");
+ end;
+
+ ---------------------------------------------------------
+ -- Component containing the constraint is present.
+ begin
+ declare
+ type Acc_VRec_03 is access
+ VRec_Of_MyArr_02; -- No Constraint_Error
+ -- raised for either
+ VObj_12 : Acc_VRec_03; -- declaration.
+ begin
+ VObj_12 := new VRec_Of_MyArr_02
+ (Report.Ident_Int(0)); -- Constraint_Error raised.
+
+ Report.Failed ("VObj_12 - Constraint_Error should be raised");
+ if VObj_12.all /= (1, (1, 1)) then
+ Report.Comment ("VObj_12 - Shouldn't get here");
+ end if;
+
+ exception
+ when Constraint_Error => -- Exception expected.
+ null;
+ when others =>
+ Report.Failed ("VObj_12 - unexpected exception raised");
+ end;
+
+ exception
+ when Constraint_Error =>
+ Report.Failed ("Acc_VRec_03 - Constraint_Error raised");
+ when others =>
+ Report.Failed ("Acc_VRec_03 - unexpected exception raised");
+ end;
+
+ ---------------------------------------------------------
+ -- Component containing the constraint is absent.
+ begin
+ declare
+ type Acc_VRec_04 is access
+ VRec_Of_MyArr_02(11); -- No Constraint_Error
+ -- raised for either
+ VObj_13 : Acc_VRec_04; -- declaration.
+
+ begin
+ VObj_13 := new VRec_Of_MyArr_02(11);
+ if VObj_13.all /= (11, 0) then
+ Report.Comment ("VObj_13 - wrong values");
+ end if;
+ end;
+
+ exception
+ when others =>
+ Report.Failed ("Acc_VRec_04 - unexpected exception raised");
+ end;
+
+ end;
+
+ Report.Result;
+
+exception
+ when others =>
+ Report.Failed ("Discriminant value checked too soon");
+ Report.Result;
+
+end C371003;