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-- LA140182.AM

--

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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

--     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 compilation unit may not depend semantically

--      on two different versions of the same compilation unit.

--      Check the case where a separate generic package body depends

--      on a library level generic package body that is changed.

--

-- TEST DESCRIPTION:

--      This test compiles a generic package and its body, and a

--      procedure that withs the generic package.  Then a new

--      version of the generic package body is compiled (in a

--      separate file, simulating and editing modification to the

--      unit).  Unless automatic recompilation is supported, this

--      test should fail to link.  Otherwise, the test should

--      recompile and link the correct version of the with package

--      withed package and report "PASSED" at execution time.

--

-- SPECIAL REQUIREMENTS:

--      To build this test:

--         1) Compile the file LA140180 (and include the results in the

--            program library).

--         2) Compile the file LA140181 (and include the results in the

--            program library).

--         3) Compile the file LA140182 (and include the results in the

--            program library).

--         4) Compile the file LA140183 (and include the results in the

--            program library).

--         5) Attempt to build an executable image.

--         6) If an executable image results, run it.

--

-- TEST FILES:

--      This test consists of the following files:

--         LA140180.A

--         LA140181.A

--      -> LA140182.AM

--         LA140183.A

--

-- PASS/FAIL CRITERIA:

--      The test passes if a link time error message reports that

--      LA14018_0.utils_18 is missing or obsolete and no executable image

--      results.  The test also passes if an executable image is produced

--      and reports "PASSED" (in the case where the implementation supports

--      automatic recompilation).

--

--

-- CHANGE HISTORY:

--     01 MAY 95   ACVC 1.12   LA5008N baseline version

--     16 JUN 95   SAIC        Initial version

--     07 DEC 96   SAIC        Modified unit names and prologue to conform

--                             to coding conventions. Moved instantiation

--                             of utils_18 to avoid potential Program_Error.

--                             Moved LA14018_0 to a separate file.

--

--!

separate (LA14018_0)        -- This dependency must be resolved

                            -- after LA140181.A is compiled.

package body utils_18 is

     procedure Dec (Param : in out unsigned) is

     begin

          Param := Param - offset;

     end Dec;

end utils_18;

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

with Report; use Report;

with LA14018_0;

procedure LA140182 is

     type mod_4 is mod 4; -- 0, 1, 2, 3, 0, 1,...

     TC_var : mod_4 := 2;

     package Mod_stuff is new LA14018_0 (mod_4);

     package unsigned_utils is new Mod_stuff.utils_18 (mod_4);

begin

     Test ("LA14018", "Check that a compilation unit may not " &

                      "depend semantically on two different " &

                      "versions of the same compilation unit. "&

                      "Check the case where a separate package " &

                      "body depends on a library level generic " &

                      "package body that is changed");

     unsigned_utils.Dec (TC_var);

     if TC_var = 2 then

          Failed ("Dec routine did not work");

     elsif TC_var = 1 then

          Failed ("New body for LA14018_0 not used");

     elsif TC_var /= 3 then

          Failed ("Unexpected result produced");

     end if;

     Result;

end LA140182;