ca140232.am

linux下编程用 编译软件

-- CA140232.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 function that is changed.
--
-- TEST DESCRIPTION:
--      This test compiles a generic function, a generic
--      instantiation of the generic function, and a main
--      procedure that withs the instantiated generic
--      function.  Then, a new version of the first generic
--      function is compiled (in a separate file, simulating
--      editing and modification to the unit).  The test should
--      link the correct version of the withed function and
--      report "PASSED" at execution time.
--
--      Note that compilers are required by the standard to support
--      replacement of a generic body without recompilation of the
--      instantation. The ARG confirmed 10.1.4(10) with AI-00077.
--
--      To build this test:
--         1) Compile the file CA140230 (and include the results in the
--            program library).
--         2) Compile the file CA140231 (and include the results in the
--            program library).
--         3) Compile the file CA140232 (and include the results in the
--            program library).
--         4) Compile the file CA140233 (and include the results in the
--            program library).
--         5) Build and run an executable image.
--
-- TEST FILES:
--      This test consists of the following files:
--         CA140230.A
--         CA140231.A
--      -> CA140232.AM
--         CA140233.A
--
-- CHANGE HISTORY:
--     01 MAY 95   ACVC 1.12   LA5008T baseline version
--     29 JUN 95   SAIC        Initial version
--     05 MAR 96   SAIC        First revision after review
--     18 NOV 96   SAIC        Modified unit names and prologue to conform
--                             to coding conventions.
--     07 DEC 96   SAIC        Moved CA14023_1 to a separate file.
--     13 SEP 99   RLB         Changed to C-test (by AI-00077).
--     20 MAR 00   RLB         Removed special requirements, because there
--                             aren't any.
--
--!

with CA14023_0;
use CA14023_0;

generic
     Min : Little_float := 0.0;
     type Any_rec is new Data_rec with private;
function CA14023_2 (R1, R2 : Any_rec) return Little_float;

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

with CA14023_1;

function CA14023_2 (R1, R2 : Any_rec) return Little_float is
     function Max_val is new CA14023_1 (Little_float, Min);
begin
     return max_val (R1.Data, R2.Data);
end CA14023_2;

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

package CA14023_0.CA14023_3 is
     type New_data_rec is new Data_rec with record
          Other_val : integer := 100;
     end record;
end CA14023_0.CA14023_3;

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

with Report; use Report;
with CA14023_2;
with CA14023_0;
with CA14023_0.CA14023_3;

procedure CA140232 is

     NDR1, NDR2 : CA14023_0.CA14023_3.New_data_rec;
     Min_value : constant CA14023_0.Little_float := 0.0;
     TC_result : CA14023_0.Little_float;
     function Max_Data_Val is new CA14023_2 (Min_value,
                    CA14023_0.CA14023_3.New_data_rec);
begin
     Test ("CA14023", "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 " &
                      "function that is changed");

     NDR1.Data := 2.0;
     NDR2.Data := 5.0;

     TC_result := Max_Data_Val (NDR1, NDR2);

     if TC_result = 5.0 then
          Failed ("Revised generic not used");
     elsif TC_result /= 0.0 then               -- the minimum, floor
          Failed ("Incorrect value returned"); -- value of 0.0 should
     end if;                                   -- be returned rather
                                               -- than the min of the
                                               -- two actual parameters

     Result;
end CA140232;