summaryrefslogtreecommitdiff
path: root/gcc/testsuite/ada/acats/tests/cc/cc51004.a
blob: 09b1b57fae70bd5703c05800f6a86cf0d07d3386 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
-- CC51004.A
--
--                             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 if the ancestor type of a formal derived type is a composite
--      type that is not an array type, the formal type inherits components,
--      including discriminants, from the ancestor type.
--
--      Check for the case where the ancestor type is a tagged type, and the
--      formal derived type is declared in a generic subprogram.
--
-- TEST DESCRIPTION:
--      Define a discriminated tagged type in a package. Declare a
--      library-level generic subprogram with a formal derived type using the
--      tagged type as ancestor. Give the generic subprogram an in out
--      parameter of the formal derived type. Inside the generic, use the
--      discriminant component and modify the remaining components of the
--      tagged parameter. In the main program, declare tagged record objects
--      with two different discriminant values. Derive an indefinite type from
--      the tagged type with a new discriminant part. Instantiate the
--      generic subprogram for the root tagged subtype and the derived subtype.
--      Call the root subtype instance with actual parameters having the two
--      discriminant values. Also call the derived subtype instance with an
--      appropriate actual.
--
--
-- CHANGE HISTORY:
--      06 Dec 94   SAIC    ACVC 2.0
--      05 Jan 94   SAIC    Removed unknown discriminant part from formal
--                          derived type. Moved declaration of type
--                          New_Dbl_Sq from main subprogram to CC51004_0.
--      05 Nov 95   SAIC    ACVC 2.0.1 fixes: Removed constrained subtype
--                          instantiation and associated declarations.
--                          Modified commentary.
--
--!

-- Simulate a fragment of a matrix manipulation application.

package CC51004_0 is  -- Matrix types.

   type Matrix is array (Natural range <>, Natural range <>) of Integer;

   type Square (Side : Natural) is record
      Mat : Matrix (1 .. Side, 1 .. Side);
   end record;

   type Sq_Type (Num1 : Natural) is tagged record
      One : Square (Num1);
   end record;

   -- Extended type with new discriminant part (which constrains parent):

   type New_Dbl_Sq (Num2 : Natural) is new Sq_Type(Num2) with record
      Two : Square (Num2);
   end record;

end CC51004_0;


-- No body for CC51004_0;


     --==================================================================--


with CC51004_0;  -- Matrix types.
generic          -- Generic matrix "clear" operation.
   type Squares is new CC51004_0.Sq_Type with private;       -- Indefinite
procedure CC51004_1 (Sq : in out Squares);                   -- formal.


     --==================================================================--


procedure CC51004_1 (Sq : in out Squares) is
begin
   for I in 1 .. Sq.Num1 loop        -- Discriminants inherited from ancestor
      for J in 1 .. Sq.Num1 loop     -- type (should work even for derived type
                                     -- declaring new discriminant part).
         Sq.One.Mat (I, J) := 0;     -- Other components inherited from
                                     -- ancestor type.
      end loop;
   end loop;
end CC51004_1;


     --==================================================================--


with CC51004_0;  -- Matrix types.
with CC51004_1;  -- Generic double-matrix "clear" operation.

with Report;
procedure CC51004 is

   use CC51004_0;  -- "/=" operator directly visible for Sq_Type.

   -- Matrices of root type:

   Mat_2x2      : Square(Side => 2)  := (Side => 2, Mat => ( (1, 2), (3, 4) ));
   One_Mat_2x2  : Sq_Type(Num1 => 2) := (2, Mat_2x2);

   Zero_2x2     : constant Square(2)  := (2, Mat => ( (0, 0), (0, 0) ));
   Expected_2x2 : constant Sq_Type(2) := (Num1 => 2, One => Zero_2x2);


   Mat_3x3      : Square(Side => 3) := (Side => 3,
                                        Mat  => (1      => (5, 2, 7),
                                                 others => (1      => 4,
                                                            others => 9)));
   One_Mat_3x3  : Sq_Type(3)        := (Num1 => 3, One => Mat_3x3);

   Zero_3x3     : constant Square(3)        := (3, Mat => (others => (0,0,0)));
   Expected_3x3 : constant Sq_Type(Num1 => 3) := (3, Zero_3x3);


   New_Dbl_2x2      : New_Dbl_Sq(Num2 => 2) := (2, others => Mat_2x2);
   Expected_New_2x2 : constant New_Dbl_Sq := (2, Zero_2x2, Mat_2x2);



   -- Instantiations:

   procedure Clr_Mat is new CC51004_1 (Sq_Type);
   procedure Clr_New_Dbl is new CC51004_1 (New_Dbl_Sq);


begin
   Report.Test ("CC51004", "Check that a formal derived tagged type " &
                           "inherits components, including discriminants, " &
                           "from its ancestor type");

   -- Simulate use of matrix manipulation operations.


   Clr_Mat (One_Mat_2x2);

   if (One_Mat_2x2 /= Expected_2x2) then
      Report.Failed ("Wrong result root type (2x2 matrix)");
   end if;


   Clr_Mat (One_Mat_3x3);

   if (One_Mat_3x3 /= Expected_3x3) then
      Report.Failed ("Wrong result root type (3x3 matrix)");
   end if;


   Clr_New_Dbl (New_Dbl_2x2);

   if (New_Dbl_2x2 /= Expected_New_2x2) then
      Report.Failed ("Wrong result extended type (2x2 matrix)");
   end if;


   Report.Result;
end CC51004;