1-- CA140232.AM
2--
3--                             Grant of Unlimited Rights
4--
5--     Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
6--     F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained
7--     unlimited rights in the software and documentation contained herein.
8--     Unlimited rights are defined in DFAR 252.227-7013(a)(19).  By making
9--     this public release, the Government intends to confer upon all
10--     recipients unlimited rights  equal to those held by the Government.
11--     These rights include rights to use, duplicate, release or disclose the
12--     released technical data and computer software in whole or in part, in
13--     any manner and for any purpose whatsoever, and to have or permit others
14--     to do so.
15--
16--                                    DISCLAIMER
17--
18--     ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
19--     DISCLOSED ARE AS IS.  THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED
20--     WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
21--     SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE
22--     OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
23--     PARTICULAR PURPOSE OF SAID MATERIAL.
24--*
25--
26-- OBJECTIVE:
27--      Check that a compilation unit may not depend semantically
28--      on two different versions of the same compilation unit.
29--      Check the case where a generic instantiation depends on
30--      a generic function that is changed.
31--
32-- TEST DESCRIPTION:
33--      This test compiles a generic function, a generic
34--      instantiation of the generic function, and a main
35--      procedure that withs the instantiated generic
36--      function.  Then, a new version of the first generic
37--      function is compiled (in a separate file, simulating
38--      editing and modification to the unit).  The test should
39--      link the correct version of the withed function and
40--      report "PASSED" at execution time.
41--
42--      Note that compilers are required by the standard to support
43--      replacement of a generic body without recompilation of the
44--      instantation. The ARG confirmed 10.1.4(10) with AI-00077.
45--
46--      To build this test:
47--         1) Compile the file CA140230 (and include the results in the
48--            program library).
49--         2) Compile the file CA140231 (and include the results in the
50--            program library).
51--         3) Compile the file CA140232 (and include the results in the
52--            program library).
53--         4) Compile the file CA140233 (and include the results in the
54--            program library).
55--         5) Build and run an executable image.
56--
57-- TEST FILES:
58--      This test consists of the following files:
59--         CA140230.A
60--         CA140231.A
61--      -> CA140232.AM
62--         CA140233.A
63--
64-- CHANGE HISTORY:
65--     01 MAY 95   ACVC 1.12   LA5008T baseline version
66--     29 JUN 95   SAIC        Initial version
67--     05 MAR 96   SAIC        First revision after review
68--     18 NOV 96   SAIC        Modified unit names and prologue to conform
69--                             to coding conventions.
70--     07 DEC 96   SAIC        Moved CA14023_1 to a separate file.
71--     13 SEP 99   RLB         Changed to C-test (by AI-00077).
72--     20 MAR 00   RLB         Removed special requirements, because there
73--                             aren't any.
74--
75--!
76
77with CA14023_0;
78use CA14023_0;
79
80generic
81     Min : Little_float := 0.0;
82     type Any_rec is new Data_rec with private;
83function CA14023_2 (R1, R2 : Any_rec) return Little_float;
84
85--------------------------------------------------------
86
87with CA14023_1;
88
89function CA14023_2 (R1, R2 : Any_rec) return Little_float is
90     function Max_val is new CA14023_1 (Little_float, Min);
91begin
92     return max_val (R1.Data, R2.Data);
93end CA14023_2;
94
95--------------------------------------------------------
96
97package CA14023_0.CA14023_3 is
98     type New_data_rec is new Data_rec with record
99          Other_val : integer := 100;
100     end record;
101end CA14023_0.CA14023_3;
102
103--------------------------------------------------------
104
105with Report; use Report;
106with CA14023_2;
107with CA14023_0;
108with CA14023_0.CA14023_3;
109
110procedure CA140232 is
111
112     NDR1, NDR2 : CA14023_0.CA14023_3.New_data_rec;
113     Min_value : constant CA14023_0.Little_float := 0.0;
114     TC_result : CA14023_0.Little_float;
115     function Max_Data_Val is new CA14023_2 (Min_value,
116                    CA14023_0.CA14023_3.New_data_rec);
117begin
118     Test ("CA14023", "Check that a compilation unit may not " &
119                      "depend semantically on two different " &
120                      "versions of the same compilation unit.  " &
121                      "Check the case where a generic " &
122                      "instantiation depends on a generic " &
123                      "function that is changed");
124
125     NDR1.Data := 2.0;
126     NDR2.Data := 5.0;
127
128     TC_result := Max_Data_Val (NDR1, NDR2);
129
130     if TC_result = 5.0 then
131          Failed ("Revised generic not used");
132     elsif TC_result /= 0.0 then               -- the minimum, floor
133          Failed ("Incorrect value returned"); -- value of 0.0 should
134     end if;                                   -- be returned rather
135                                               -- than the min of the
136                                               -- two actual parameters
137
138     Result;
139end CA140232;
140