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-- CD10001.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

--     any manner and for any purpose whatsoever, and to have or permit others

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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

--     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 representation items may contain nonstatic expressions

--      in the case that each expression in  the representation item is a

--      name that statically denotes a constant declared before the entity.

--

--

-- TEST DESCRIPTION:

--      For each of the specific items in the objective, this test checks

--      an example of each of the categories of representation specification

--      that are applicable to that objective, to wit:

--        address clause ....................... Expressions need not be static

--        alignment clause ..................... Expressions must be static

--        bit order clause ..................... Not tested

--        component size clause ................ Expressions must be static

--        enumeration representation clause .... Expressions must be static

--        external tag clause .................. Expressions must be static

--        Import, Export and Convention pragmas  Not tested

--        input clause ......................... Not tested

--        output clause ........................ Not tested

--        Pack pragma .......................... Not tested

--        read clause .......................... Not tested

--        record representation clause ......... Expressions must be static

--        size clause .......................... Expressions must be static

--        small clause ......................... Expressions must be static

--        storage pool clause .................. Not tested

--        storage size clause .................. Expressions must be static

--        write clause ......................... Not tested

--

-- APPLICABILITY CRITERIA:

--      All implementations must attempt to compile this test.

--

--      For implementations validating against Systems Programming Annex (C):

--        this test must execute.

--

--      For implementations not validating against Annex C:

--        if this test compiles without error messages at compilation,

--        it must bind and execute.

--

-- PASS/FAIL CRITERIA:

--      For implementations validating against Systems Programming Annex (C):

--        this test must execute, report PASSED, and complete normally,

--        otherwise the test FAILS

--

--      For implementations not validating against Annex C:

--        PASSING behavior is:

--          this test executes, reports PASSED, and completes normally

--        or

--          this test executes and reports NOT_APPLICABLE

--        or

--          this test produces at least one error message at compilation, and

--          the error message is associated with one of the items marked:

--             -- N/A => ERROR.

--

--      All other behaviors are FAILING.

--

-- CHANGE HISTORY:

--      11 JUL 95   SAIC  Initial version

--      10 MAR 97   PWB.CTA Made Nonstatic_Entity nonstatic; changed

--                        Tenths'Small from 1.0/32.0 to 1.0/10.0,

--                        as expected by the later check; improved

--                        internal documentation.

--      16 FEB 98   EDS   Modified test documentation.

--      24 NOV 98   RLB   Changed Tenths'Small to 1.0/32.0, as this is

--                        necessary so that all implementations can

--                        process this test. (3.5.9(21) means non-binary

--                        smalls are optional.)

--      11 MAR 99   RLB   Merged versions. Most EDS changes removed (as

--                        they made the test less applicable than the ACAA

--                        version).

--!

----------------------------------------------------------------- CD10001_0

with System;

with System.Storage_Elements;

with Impdef;

with SPPRT13;

package CD10001_0 is

  -- a few types and objects to work with.

  type Int is range -2048 .. 2047;

  My_Int : Int := 1024;

  type Enumeration is (First, Second, Third, Fourth, Fifth);

  -- a few names that statically denote constants:

  Nonstatic_Entity : constant System.Address :=                  -- Non-static

     System.Storage_Elements."+"

       ( SPPRT13.Variable_Address,

         System.Storage_Elements.Storage_Offset'(0) );

  Tag_String : constant String := Impdef.External_Tag_Value;     -- Static

  -- Check to ensure that Tag_String is static

  Tag_String_Length : constant := Tag_String'Length;

  A_Reasonable_Size_Value : constant := System.Storage_Unit;     -- Static

  Zero  : constant := 0;                                         -- Static

  One   : constant := 1;                                         -- Static

  Two   : constant := 2;                                         -- Static

  Three : constant := 3;                                         -- Static

  Four  : constant := 4;                                         -- Static

  Five  : constant := 5;                                         -- Static

  K : constant Int := My_Int;                                    -- Non-Static

--      Check that representation items containing nonstatic expressions are

--      supported in the case that the representation item is a name that

--      statically denotes a constant declared before the entity.

--

--        address clause

--        Expression must be static - RM 13.3(12)

  Object_Address : Enumeration;

    for Object_Address'Address use Nonstatic_Entity;          -- N/A => ERROR.

--        alignment clause

--        Expression must be static - RM 13.3(25)

  Object_Alignment : Enumeration;

    for Object_Alignment'Alignment use One;                   -- N/A => ERROR.

--        bit order clause

-- no interesting test can be specified

--        component size clause

--        Expression must be static - RM 13.3(69)

  type Array_With_Components is array(1..10) of Enumeration;

    for Array_With_Components'Component_Size

      use A_Reasonable_Size_Value;                            -- N/A => ERROR.

--        enumeration representation clause

--        Expressions must be static - RM 13.4(6)

  type Enumeration_1 is (First, Second, Third);

  for Enumeration_1 use (First => One, Second => Two, Third => Three);

--        external tag clause

--        Expression must be static - RM 13.3(75)

  type Some_Tagged_Type is tagged null record;

    for Some_Tagged_Type'External_Tag use Tag_String;         -- N/A => ERROR.

--        Import, Export and Convention pragmas

-- no interesting test can be specified

--        input clause

-- no interesting test can be specified

--        output clause

-- no interesting test can be specified

--        Pack pragma

-- no interesting test can be specified

--        read clause

-- no interesting test can be specified

--        record representation clause

--        Expressions must be static - RM 13.3(10)

  type Record_To_Layout is record

    Bit_0 : Boolean;

    Bit_1 : Boolean;

  end record;

    for Record_To_Layout use record                           -- N/A => ERROR.

      Bit_0 at Zero range Zero..Zero;                         -- N/A => ERROR.

      Bit_1 at Zero range Four..Four;                         -- N/A => ERROR.

    end record;                                               -- N/A => ERROR.

--        size clause

--        Expression must be static - RM 13.3(41)

  Object_Size : Enumeration;

    for Object_Size'Size use A_Reasonable_Size_Value;         -- N/A => ERROR.

--        small clause

--        Expression must be static - RM 3.5.10(2)

  type Tenths is delta 0.1 range 0.0..10.0;

    for Tenths'Small use 1.0 / (Two ** Five);                 -- N/A => ERROR.

--        storage pool clause

--        Not tested

--        storage size clause

--        Expression may be non-static - RM 13.11(15)

  type Reference is access Record_To_Layout;

    for Reference'Storage_Size use Four * K;                  -- N/A => ERROR.

--        write clause

-- no interesting test can be specified

  procedure TC_Check_Values;

end CD10001_0;

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

with TCTouch;

package body CD10001_0 is

  use type System.Address;

  procedure Assert( Truth : Boolean; Message: String ) is

  begin

    if not Truth then

      TCTouch.Implementation_Check( Message );

    end if;

  end Assert;

  procedure TC_Check_Values is

    Record_Object : Record_To_Layout;

  begin

    Assert(Object_Address'Address = Nonstatic_Entity,

           "Object not at specified address");

    Assert(Object_Alignment'Alignment >= One,

           "Object not at specified alignment");

    Assert(Array_With_Components'Component_Size = A_Reasonable_Size_Value,

           "Array Components not specified size");

-- I don't see how to reliably check this one:

--

--  type Enumeration_1 is (First, Second, Third);

--  for Enumeration_1 use (First => One, Second => Two, Third => Three);

    Assert(Some_Tagged_Type'External_Tag = Tag_String,

           "External_Tag not specified value");

    Assert(Record_Object.Bit_0'First_Bit = Zero,

          "Record object First_Bit not zero");

    Assert(Record_Object.Bit_1'Last_Bit = Four,

          "Record object Last_Bit not four");

    Assert(Object_Size'Size = A_Reasonable_Size_Value,

           "Object size not specified value");

    Assert(Tenths'Small = 1.0 / Two ** Five,

           "Tenths small not specified value");

    Assert(Reference'Storage_Size = 4096, -- Four * K,

           "Reference storage size not specified value");

  end TC_Check_Values;

end CD10001_0;

------------------------------------------------------------------- CD10001

with Report;

with CD10001_0;

procedure CD10001 is

begin  -- Main test procedure.

  Report.Test ("CD10001", "Check that representation items containing " &

                          "nonstatic expressions are supported in the " &

                          "case that the representation item is a name " &

                          "that statically denotes a constant declared " &

                          "before the entity" );

  CD10001_0.TC_Check_Values;

  Report.Result;

end CD10001;