| -- CC70B01.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 a formal package actual part may specify actual parameters |
| -- for a generic formal package. Check that a use clause in the generic |
| -- formal part provides direct visibility of declarations within the |
| -- generic formal package. Check that the scope of such a use clause |
| -- extends to the generic subprogram body. Check that the visible part of |
| -- the generic formal package includes the first list of basic |
| -- declarative items of the package specification. |
| -- |
| -- Check the case where the formal package is declared in a generic |
| -- subprogram. |
| -- |
| -- TEST DESCRIPTION: |
| -- Declare a list abstraction in a generic package which manages lists of |
| -- elements of any nonlimited type (foundation code). Declare a generic |
| -- subprogram which operates on lists of elements of discrete types. |
| -- Provide the generic subprogram with two formal parameters: (1) a |
| -- formal discrete type which represents a list element type, and (2) a |
| -- generic formal package with the list abstraction package as template. |
| -- Use the formal discrete type as the generic formal actual part for the |
| -- formal package. Include a use clause for the formal package in the |
| -- generic subprogram formal part. |
| -- |
| -- TEST FILES: |
| -- The following files comprise this test: |
| -- |
| -- FC70B00.A |
| -- CC70B01.A |
| -- |
| -- |
| -- CHANGE HISTORY: |
| -- 06 Dec 94 SAIC ACVC 2.0 |
| -- |
| --! |
| |
| -- Declare a generic subprogram which performs an operation on lists of |
| -- discrete objects. |
| |
| with FC70B00; -- Generic list abstraction. |
| generic |
| |
| -- Import the list abstraction defined in FC70B00. To ensure that only |
| -- list abstraction instances defining lists of *discrete* elements will be |
| -- accepted as actuals to this generic, declare a formal discrete type and |
| -- pass it as an actual parameter to the formal package. |
| -- |
| -- Only instances declared for the same discrete type as that used to |
| -- instantiate this generic subprogram will be accepted. |
| |
| type Elem_Type is (<>); -- Discrete types only. |
| with package List_Mgr is new FC70B00 (Elem_Type); |
| |
| use List_Mgr; -- Use clause for formal package. |
| |
| procedure CC70B01_0 (L : in out List_Type); -- List_Mgr.List_Type directly |
| -- visible. |
| |
| |
| --==================================================================-- |
| |
| |
| procedure CC70B01_0 (L : in out List_Type) is -- Declarations in List_Mgr |
| begin -- still directly visible. |
| Reset (L); |
| while not End_Of_List (L) loop |
| Write_Element (L, Elem_Type'First); -- This statement assumes |
| end loop; -- Elem_Type is discrete. |
| end CC70B01_0; |
| |
| |
| --==================================================================-- |
| |
| |
| with FC70B00; -- Generic list abstraction. |
| with CC70B01_0; -- Generic "zeroing" operation for lists of discrete types. |
| |
| with Report; |
| procedure CC70B01 is |
| |
| type Points is range 0 .. 10; -- Discrete type. |
| package Lists_of_Scores is new FC70B00 (Points); -- List-of-points |
| -- abstraction. |
| Scores : Lists_of_Scores.List_Type; -- List of points. |
| |
| procedure Reset_All_Scores is new -- Operation on lists of |
| CC70B01_0 (Points, Lists_of_Scores); -- points. |
| |
| |
| -- Begin test code declarations: ----------------------- |
| |
| type TC_Score_Array is array (1 .. 3) of Points; |
| |
| TC_Initial_Values : constant TC_Score_Array := (2, 4, 6); |
| TC_Final_Values : constant TC_Score_Array := (0, 0, 0); |
| |
| TC_Correct_Initial_Values : Boolean := False; |
| TC_Correct_Final_Values : Boolean := False; |
| |
| |
| procedure TC_Initialize_List (L : in out Lists_of_Scores.List_Type) is |
| begin -- Initial list contains 3 scores |
| for I in TC_Score_Array'Range loop -- with the values 2, 4, and 6. |
| Lists_of_Scores.Add_Element (L, TC_Initial_Values(I)); |
| end loop; |
| end TC_Initialize_List; |
| |
| |
| procedure TC_Verify_List (L : in out Lists_of_Scores.List_Type; |
| Expected : in TC_Score_Array; |
| OK : out Boolean) is |
| Actual : TC_Score_Array; |
| begin -- Verify that all scores have been |
| Lists_of_Scores.Reset (L); -- set to zero. |
| for I in TC_Score_Array'Range loop |
| Lists_of_Scores.Read_Element (L, Actual(I)); |
| end loop; |
| OK := (Actual = Expected); |
| end TC_Verify_List; |
| |
| -- End test code declarations. ------------------------- |
| |
| |
| begin |
| Report.Test ("CC70B01", "Check that a library-level generic subprogram " & |
| "may have a formal package as a formal parameter, and that " & |
| "the generic formal actual part may specify explicit actual " & |
| "parameters. Check that a use clause is legal in the " & |
| "generic formal part"); |
| |
| TC_Initialize_List (Scores); |
| TC_Verify_List (Scores, TC_Initial_Values, TC_Correct_Initial_Values); |
| |
| if not TC_Correct_Initial_Values then |
| Report.Failed ("List contains incorrect initial values"); |
| end if; |
| |
| Reset_All_Scores (Scores); |
| TC_Verify_List (Scores, TC_Final_Values, TC_Correct_Final_Values); |
| |
| if not TC_Correct_Final_Values then |
| Report.Failed ("List contains incorrect final values"); |
| end if; |
| |
| Report.Result; |
| end CC70B01; |
