la140221.am

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-- LA140221.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 generic instantiation depends on
--      a generic procedure that is changed.
--
-- TEST DESCRIPTION:
--      This test compiles a generic procedure, a second generic 
--      procedure, a generic instantiation of the second procedure 
--      that depends on both the first and second generic
--      procedures, and a main procedure that withs the instantiated
--      procedure.  Then, a new version of the first generic  
--      procedure is compiled (in a separate file, simulating 
--      editing and 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 withed function and report "PASSED" at 
--      execution time.
--
-- SPECIAL REQUIREMENTS:
--      To build this test:
--         1) Compile the file LA140220 (and include the results in the
--            program library).
--         2) Compile the file LA140221 (and include the results in the
--            program library).
--         3) Compile the file LA140222 (and include the results in the
--            program library).
--         4) Attempt to build an executable image.
--         5) If an executable image results, run it.
--
-- TEST FILES:
--      This test consists of the following files:
--         LA140220.A
--      -> LA140221.AM
--         LA140222.A
--
-- PASS/FAIL CRITERIA:    
--      The test passes if a link time error message reports that 
--      LA14022_2 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   LA5008S baseline version
--     23 JUN 95   SAIC        Initial version
--     18 NOV 96   SAIC        Modified unit names and prologue to conform
--                             to coding conventions.
--     07 DEC 96   SAIC        Moved LA14022_0 to a separate file. Added
--                             pragma Elaborate to context clause of
--                             LA14022_2.
--
--!

package LA14022_1 is
     type rec_ptr; 
     type rec is record
          data : integer;
     end record;
     type rec_ptr is access rec;
     subtype data_int is integer range 0..100;
end LA14022_1;


with LA14022_0;
with LA14022_1;
pragma Elaborate (LA14022_0);
procedure LA14022_2 is new 
     LA14022_0 (stuff => LA14022_1.rec,
                ptr => LA14022_1.rec_ptr,
                return_result => LA14022_1.data_int,
                delta_val => 50);

with Report;
use Report;
with LA14022_2;
with LA14022_1;
use LA14022_1;
procedure LA140221 is
     TC_val : LA14022_1.data_int := 10;
     P, Q : LA14022_1.rec_ptr;
begin
     Test ("LA14022", "Check that a compilation unit may not " & 
                      "depend semantically on two different " &
                      "versions of the same compilation unit. " &
                      "Check the case where a generic " &
                      "instantiation depends on a generic " &
                      "procedure that is changed");

     Q := P;
     LA14022_2 (Q, TC_val);

     if Q /= P then
          Failed ("Wrong procedure result");
     end if;
     if TC_val = 60 then
          Failed ("Old instantiation used");
     elsif TC_val /= 10 then
          Failed ("Wrong result");
     end if;

     Result;
end LA140221;