summaryrefslogtreecommitdiff
path: root/gcc/testsuite/ada/acats/tests/ca/ca11001.a
blob: c9d1e486ca5f204841301ccf7bb86e27209528d3 (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
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
-- CA11001.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 a child unit can be used to provide an alternate view and
--      operations on a private type in its parent package.  Check that a 
--      child unit can be a package.  Check that a WITH of a child unit 
--      includes an implicit WITH of its ancestor unit.  
--
-- TEST DESCRIPTION:
--      Declare a private type in a package specification. Declare 
--      subprograms for the type.
--
--      Add a public child to the above package.  Within the body of this
--      package, access the private type. Declare operations to read and 
--      write to its parent private type.
--
--      In the main program, "with" the child.  Declare objects of the
--      parent private type.  Access the subprograms from both parent and
--      child packages.
--
--
-- CHANGE HISTORY:
--      06 Dec 94   SAIC    ACVC 2.0
--
--!

package CA11001_0 is   -- Cartesian_Complex
--  This package represents a Cartesian view of a complex number.  It contains 
--  a private type plus subprograms to construct and decompose a complex 
--  number.

   type Complex_Int is range 0 .. 100;

   type Complex_Type is private;

   Constant_Complex : constant Complex_Type;

   Complex_Error : exception;

   procedure Cartesian_Assign   (R, I : in     Complex_Int; 
                                 C    :    out Complex_Type);

   function Cartesian_Real_Part (C : Complex_Type) 
     return Complex_Int;

   function Cartesian_Imag_Part (C : Complex_Type) 
     return Complex_Int;

   function Complex (Real, Imaginary : Complex_Int)
     return Complex_Type;                             

private
   type Complex_Type is                      -- Parent private type
      record
         Real, Imaginary : Complex_Int;
      end record;

   Constant_Complex : constant Complex_Type := (Real => 0, Imaginary => 0);

end CA11001_0;       -- Cartesian_Complex

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

package body CA11001_0 is  -- Cartesian_Complex

   procedure Cartesian_Assign (R, I : in     Complex_Int; 
                               C    :    out Complex_Type) is
   begin
      C.Real      := R;
      C.Imaginary := I;
   end Cartesian_Assign;
   -------------------------------------------------------------
   function Cartesian_Real_Part (C : Complex_Type) 
     return Complex_Int is
   begin
      return C.Real;
   end Cartesian_Real_Part;
   -------------------------------------------------------------
   function Cartesian_Imag_Part (C : Complex_Type) 
     return Complex_Int is
   begin
      return C.Imaginary;
   end Cartesian_Imag_Part;
   -------------------------------------------------------------
   function Complex (Real, Imaginary : Complex_Int)
     return Complex_Type is
   begin
      return (Real, Imaginary);
   end Complex;

end CA11001_0;      -- Cartesian_Complex

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

package CA11001_0.CA11001_1 is    -- Polar_Complex
--  This public child provides a different view of the private type from its
--  parent.  It provides a polar view by the provision of subprograms which
--  construct and decompose a complex number.

   procedure Polar_Assign (R, Theta : in     Complex_Int; 
                           C        :    out Complex_Type);  
                                             -- Complex_Type is a 
                                             -- record of CA11001_0

   function Polar_Real_Part (C: Complex_Type) return Complex_Int;           

   function Polar_Imag_Part (C: Complex_Type) return Complex_Int;

   function Equals_Const (Num : Complex_Type) return Boolean;

end CA11001_0.CA11001_1;    -- Polar_Complex

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

package body CA11001_0.CA11001_1 is   -- Polar_Complex

   function Cos (Angle : Complex_Int) return Complex_Int is
      Num : constant Complex_Int := 2;
   begin
      return (Angle * Num);   -- not true Cosine function
   end Cos;
   -------------------------------------------------------------
   function Sine (Angle : Complex_Int) return Complex_Int is
   begin
      return 1;     -- not true Sine function
   end Sine;
   -------------------------------------------------------------
   function Sqrt (Num : Complex_Int) 
     return Complex_Int is
   begin
     return (Num);     -- not true Square root function
   end Sqrt;
   -------------------------------------------------------------
   function Tan  (Angle : Complex_Int) return Complex_Int is
   begin
     return Angle;     -- not true Tangent function
   end Tan;
   -------------------------------------------------------------
   procedure Polar_Assign (R, Theta : in     Complex_Int;  
                           C        :    out Complex_Type) is 
   begin
      if R = 0 and Theta = 0 then
         raise Complex_Error;
      end if;
      C.Real := R * Cos (Theta);
      C.Imaginary := R * Sine (Theta);
   end Polar_Assign;
   -------------------------------------------------------------
   function Polar_Real_Part (C: Complex_Type) return Complex_Int is
   begin
      return Sqrt ((Cartesian_Imag_Part (C)) ** 2 + 
                   (Cartesian_Real_Part (C)) ** 2);
   end Polar_Real_Part;
   -------------------------------------------------------------
   function Polar_Imag_Part (C: Complex_Type) return Complex_Int is
   begin
      return (Tan (Cartesian_Imag_Part (C) / 
              Cartesian_Real_Part (C)));
   end Polar_Imag_Part;
   -------------------------------------------------------------
   function Equals_Const (Num : Complex_Type) return Boolean is
   begin
      return Num.Real = Constant_Complex.Real and
         Num.Imaginary = Constant_Complex.Imaginary;
   end Equals_Const;

end CA11001_0.CA11001_1;     -- Polar_Complex

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

with CA11001_0.CA11001_1;        -- Polar_Complex
with Report;

procedure CA11001 is

   Complex_No  : CA11001_0.Complex_Type;    -- Complex_Type is a
                                            -- record of CA11001_0

   Complex_5x2 : CA11001_0.Complex_Type := CA11001_0.Complex (5, 2);

   Int_2       :  CA11001_0.Complex_Int 
               := CA11001_0.Complex_Int (Report.Ident_Int (2));

begin

   Report.Test ("CA11001", "Check that a child unit can be used " &
                "to provide an alternate view and operations " &
                "on a private type in its parent package");

   Basic_View_Subtest:

   begin
      -- Assign using Cartesian coordinates.
      CA11001_0.Cartesian_Assign 
        (CA11001_0.Complex_Int (Report.Ident_Int (1)), Int_2, Complex_No);

      -- Read back in Polar coordinates.
      -- Polar values are surrogates used in checking for correct
      -- subprogram calls.
      if CA11001_0."/=" (CA11001_0.CA11001_1.Polar_Real_Part (Complex_No),
        CA11001_0.Cartesian_Real_Part (Complex_5x2)) and CA11001_0."/="
          (CA11001_0.CA11001_1.Polar_Imag_Part (Complex_No),  
            CA11001_0.Cartesian_Imag_Part (Complex_5x2)) then
           Report.Failed ("Incorrect Cartesian result");
      end if;

   end Basic_View_Subtest;
   -------------------------------------------------------------
   Alternate_View_Subtest:
   begin
      -- Assign using Polar coordinates.
      CA11001_0.CA11001_1.Polar_Assign 
        (Int_2, CA11001_0.Complex_Int (Report.Ident_Int (3)), Complex_No);

      -- Read back in Cartesian coordinates.
      if CA11001_0."/=" (CA11001_0.Cartesian_Real_Part 
        (Complex_No), CA11001_0.Complex_Int (Report.Ident_Int (12))) or 
          CA11001_0."/=" (CA11001_0.Cartesian_Imag_Part (Complex_No), Int_2) 
      then
         Report.Failed ("Incorrect Polar result");
      end if;
   end Alternate_View_Subtest;
   -------------------------------------------------------------
   Other_Subtest:
   begin
      -- Assign using Polar coordinates.
      CA11001_0.CA11001_1.Polar_Assign 
        (CA11001_0.Complex_Int (Report.Ident_Int (0)), Int_2, Complex_No);

      -- Compare with Complex_Num in CA11001_0.
      if not CA11001_0.CA11001_1.Equals_Const (Complex_No)
        then
         Report.Failed ("Incorrect result");
      end if;
   end Other_Subtest;
   -------------------------------------------------------------
   Exception_Subtest:
   begin
      -- Raised parent's exception.
      CA11001_0.CA11001_1.Polar_Assign 
        (CA11001_0.Complex_Int (Report.Ident_Int (0)), 
           CA11001_0.Complex_Int (Report.Ident_Int (0)), Complex_No);
      Report.Failed ("Exception was not raised");
   exception
      when CA11001_0.Complex_Error => 
         null;
      when others                  =>
         Report.Failed ("Unexpected exception raised in test");
   end Exception_Subtest;

   Report.Result;

end CA11001;