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-- LA140182.AM
--
--                             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 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;