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1 294 jeremybenn
-- C380004.A
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--
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--                             Grant of Unlimited Rights
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--
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--     The Ada Conformity Assessment Authority (ACAA) holds unlimited
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--     rights in the software and documentation contained herein. Unlimited
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--     rights are the same as those granted by the U.S. Government for older
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--     parts of the Ada Conformity Assessment Test Suite, and are defined
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--     in DFAR 252.227-7013(a)(19). By making this public release, the ACAA
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--     intends to confer upon all recipients unlimited rights equal to those
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--     held by the ACAA. These rights include rights to use, duplicate,
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--     release or disclose the released technical data and computer software
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--     in whole or in part, in any manner and for any purpose whatsoever, and
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--     to have or permit others to do so.
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--
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--                                    DISCLAIMER
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--
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--     ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
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--     DISCLOSED ARE AS IS. THE ACAA MAKES NO EXPRESS OR IMPLIED
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--     WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
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--     SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE
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--     OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
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--     PARTICULAR PURPOSE OF SAID MATERIAL.
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--*
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--
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-- OBJECTIVE:
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--    Check that per-object expressions are evaluated as specified for entry
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--    families and protected components.  (Defect Report 8652/0002,
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--    as reflected in Technical Corrigendum 1, RM95 3.6(22/1), 3.8(18/1), and
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--    9.5.2(22/1)).
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--
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-- CHANGE HISTORY:
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--     9 FEB 2001   PHL   Initial version.
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--    29 JUN 2002   RLB   Readied for release.
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--
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--!
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with Report;
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use Report;
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procedure C380004 is
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    type Rec (D1, D2 : Positive) is
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        record
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            null;
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        end record;
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46
    F1_Poe : Integer;
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48
    function Chk (Poe : Integer; Value : Integer; Message : String)
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                 return Boolean is
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    begin
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        if Poe /= Value then
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            Failed (Message & ": Poe is " & Integer'Image (Poe));
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        end if;
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        return True;
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    end Chk;
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57
    function F1 return Integer is
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    begin
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        F1_Poe := F1_Poe - Ident_Int (1);
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        return F1_Poe;
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    end F1;
62
 
63
    generic
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        type T is limited private;
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        with function Is_Ok (X : T;
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                             Param1 : Integer;
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                             Param2 : Integer;
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                             Param3 : Integer) return Boolean;
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    procedure Check;
70
 
71
    procedure Check is
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    begin
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        declare
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            type Poe is new T;
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            Chk1 : Boolean := Chk (F1_Poe, 17, "F1 evaluated");
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            X : Poe;             -- F1 evaluated
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            Y : Poe;             -- F1 evaluated
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            Chk2 : Boolean := Chk (F1_Poe, 15, "F1 not evaluated");
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        begin
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            if not Is_Ok (T (X), 16, 16, 17) or
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               not Is_Ok (T (Y), 15, 15, 17) then
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                Failed ("Discriminant values not correct - 0");
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            end if;
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        end;
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87
        declare
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            type Poe is new T;
89
        begin
90
            begin
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                declare
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                    X : Poe;
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                begin
94
                    if not Is_Ok (T (X), 14, 14, 17) then
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                        Failed ("Discriminant values not correct - 1");
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                    end if;
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                end;
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            exception
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                when others =>
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                    Failed ("Unexpected exception - 1");
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            end;
102
 
103
            declare
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                type Acc_Poe is access Poe;
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                X : Acc_Poe;
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            begin
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                X := new Poe;
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                begin
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                    if not Is_Ok (T (X.all), 13, 13, 17) then
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                        Failed ("Discriminant values not correct - 2");
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                    end if;
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                end;
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            exception
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                when others =>
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                    Failed ("Unexpected exception raised - 2");
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            end;
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118
            declare
119
                subtype Spoe is Poe;
120
                X : Spoe;
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            begin
122
                if not Is_Ok (T (X), 12, 12, 17) then
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                    Failed ("Discriminant values not correct - 3");
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                end if;
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            exception
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                when others =>
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                    Failed ("Unexpected exception raised - 3");
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            end;
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130
            declare
131
                type Arr is array (1 .. 2) of Poe;
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                X : Arr;
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            begin
134
                if Is_Ok (T (X (1)), 11, 11, 17) and then
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                   Is_Ok (T (X (2)), 10, 10, 17) then
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                    null;
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                elsif Is_Ok (T (X (2)), 11, 11, 17) and then
138
                      Is_Ok (T (X (1)), 10, 10, 17) then
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                    null;
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                else
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                    Failed ("Discriminant values not correct - 4");
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                end if;
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            exception
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                when others =>
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                    Failed ("Unexpected exception raised - 4");
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            end;
147
 
148
            declare
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                type Nrec is
150
                    record
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                        C1, C2 : Poe;
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                    end record;
153
                X : Nrec;
154
            begin
155
                if Is_Ok (T (X.C1), 8, 8, 17) and then
156
                   Is_Ok (T (X.C2), 9, 9, 17) then
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                    null;
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                elsif Is_Ok (T (X.C2), 8, 8, 17) and then
159
                      Is_Ok (T (X.C1), 9, 9, 17) then
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                    null;
161
                else
162
                    Failed ("Discriminant values not correct - 5");
163
                end if;
164
            exception
165
                when others =>
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                    Failed ("Unexpected exception raised - 5");
167
            end;
168
 
169
            declare
170
                type Drec is new Poe;
171
                X : Drec;
172
            begin
173
                if not Is_Ok (T (X), 7, 7, 17) then
174
                    Failed ("Discriminant values not correct - 6");
175
                end if;
176
            exception
177
                when others =>
178
                    Failed ("Unexpected exception raised - 6");
179
            end;
180
        end;
181
    end Check;
182
 
183
 
184
begin
185
    Test ("C380004",
186
          "Check evaluation of discriminant expressions " &
187
             "when the constraint depends on a discriminant, " &
188
             "and the discriminants have defaults - discriminant-dependent" &
189
             "entry families and protected components");
190
 
191
 
192
    Comment ("Discriminant-dependent entry families for task types");
193
 
194
    F1_Poe := 18;
195
 
196
    declare
197
        task type Poe (D3 : Positive := F1) is
198
            entry E (D3 .. F1);    -- F1 evaluated
199
            entry Is_Ok (D3 : Integer;
200
                         E_First : Integer;
201
                         E_Last : Integer;
202
                         Ok : out Boolean);
203
        end Poe;
204
        task body Poe is
205
        begin
206
            loop
207
                select
208
                    accept Is_Ok (D3 : Integer;
209
                                  E_First : Integer;
210
                                  E_Last : Integer;
211
                                  Ok : out Boolean) do
212
                        declare
213
                            Cnt : Natural;
214
                        begin
215
                            if Poe.D3 = D3 then
216
                                -- Can't think of a better way to check the
217
                                -- bounds of the entry family.
218
                                begin
219
                                    Cnt := E (E_First)'Count;
220
                                    Cnt := E (E_Last)'Count;
221
                                exception
222
                                    when Constraint_Error =>
223
                                        Ok := False;
224
                                        return;
225
                                end;
226
                                begin
227
                                    Cnt := E (E_First - 1)'Count;
228
                                    Ok := False;
229
                                    return;
230
                                exception
231
                                    when Constraint_Error =>
232
                                        null;
233
                                    when others =>
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                                        Ok := False;
235
                                        return;
236
                                end;
237
                                begin
238
                                    Cnt := E (E_Last + 1)'Count;
239
                                    Ok := False;
240
                                    return;
241
                                exception
242
                                    when Constraint_Error =>
243
                                        null;
244
                                    when others =>
245
                                        Ok := False;
246
                                        return;
247
                                end;
248
                                Ok := True;
249
                            else
250
                                Ok := False;
251
                                return;
252
                            end if;
253
                        end;
254
                    end Is_Ok;
255
                or
256
                    terminate;
257
                end select;
258
            end loop;
259
        end Poe;
260
 
261
        function Is_Ok
262
                    (C : Poe; D3 : Integer; E_First : Integer; E_Last : Integer)
263
                    return Boolean is
264
            Ok : Boolean;
265
        begin
266
            C.Is_Ok (D3, E_First, E_Last, Ok);
267
            return Ok;
268
        end Is_Ok;
269
 
270
        procedure Chk is new Check (Poe, Is_Ok);
271
 
272
    begin
273
        Chk;
274
    end;
275
 
276
 
277
    Comment ("Discriminant-dependent entry families for protected types");
278
 
279
    F1_Poe := 18;
280
 
281
    declare
282
        protected type Poe (D3 : Integer := F1) is
283
            entry E (D3 .. F1);    -- F1 evaluated
284
            function Is_Ok (D3 : Integer; E_First : Integer; E_Last : Integer)
285
                           return Boolean;
286
        end Poe;
287
        protected body Poe is
288
            entry E (for I in D3 .. F1) when True is
289
            begin
290
                null;
291
            end E;
292
            function Is_Ok (D3 : Integer; E_First : Integer; E_Last : Integer)
293
                           return Boolean is
294
                Cnt : Natural;
295
            begin
296
                if Poe.D3 = D3 then
297
                    -- Can't think of a better way to check the
298
                    -- bounds of the entry family.
299
                    begin
300
                        Cnt := E (E_First)'Count;
301
                        Cnt := E (E_Last)'Count;
302
                    exception
303
                        when Constraint_Error =>
304
                            return False;
305
                    end;
306
                    begin
307
                        Cnt := E (E_First - 1)'Count;
308
                        return False;
309
                    exception
310
                        when Constraint_Error =>
311
                            null;
312
                        when others =>
313
                            return False;
314
                    end;
315
                    begin
316
                        Cnt := E (E_Last + 1)'Count;
317
                        return False;
318
                    exception
319
                        when Constraint_Error =>
320
                            null;
321
                        when others =>
322
                            return False;
323
                    end;
324
                    return True;
325
                else
326
                    return False;
327
                end if;
328
            end Is_Ok;
329
        end Poe;
330
 
331
        function Is_Ok
332
                    (C : Poe; D3 : Integer; E_First : Integer; E_Last : Integer)
333
                    return Boolean is
334
        begin
335
            return C.Is_Ok (D3, E_First, E_Last);
336
        end Is_Ok;
337
 
338
        procedure Chk is new Check (Poe, Is_Ok);
339
 
340
    begin
341
        Chk;
342
    end;
343
 
344
    Comment ("Protected components");
345
 
346
    F1_Poe := 18;
347
 
348
    declare
349
        protected type Poe (D3 : Integer := F1) is
350
            function C1_D1 return Integer;
351
            function C1_D2 return Integer;
352
        private
353
            C1 : Rec (D3, F1);    -- F1 evaluated
354
        end Poe;
355
        protected body Poe is
356
            function C1_D1 return Integer is
357
            begin
358
                return C1.D1;
359
            end C1_D1;
360
            function C1_D2 return Integer is
361
            begin
362
                return C1.D2;
363
            end C1_D2;
364
        end Poe;
365
 
366
        function Is_Ok (C : Poe; D3 : Integer; C1_D1 : Integer; C1_D2 : Integer)
367
                       return Boolean is
368
        begin
369
            return C.D3 = D3 and C.C1_D1 = C1_D1 and C.C1_D2 = C1_D2;
370
        end Is_Ok;
371
 
372
        procedure Chk is new Check (Poe, Is_Ok);
373
 
374
    begin
375
        Chk;
376
    end;
377
 
378
    Result;
379
 
380
exception
381
    when others =>
382
        Failed ("Unexpected exception");
383
        Result;
384
 
385
end C380004;

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