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1 -- CXB3007.A
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 the procedure To_C converts the Wide_Character elements
28 -- of a Wide_String parameter into wchar_t elements of the wchar_array
29 -- parameter Target, with wide_nul termination if parameter Append_Nul
30 -- is true.
31 --
32 -- Check that the out parameter Count of procedure To_C is set to the
33 -- appropriate value for both the wide_nul/no wide_nul terminated cases.
34 --
35 -- Check that Constraint_Error is propagated by procedure To_C if the
36 -- length of the wchar_array parameter Target is not sufficient to
37 -- hold the converted Wide_String value.
38 --
39 -- Check that the Procedure To_Ada converts wchar_t elements of the
40 -- wchar_array parameter Item to the corresponding Wide_Character
41 -- elements of Wide_String out parameter Target.
42 --
43 -- Check that Constraint_Error is propagated by Procedure To_Ada if the
44 -- length of Wide_String parameter Target is not long enough to hold the
45 -- converted wchar_array value.
46 --
47 -- Check that Terminator_Error is propagated by Procedure To_Ada if the
48 -- parameter Trim_Nul is set to True, but the actual Item parameter
49 -- contains no wide_nul wchar_t.
50 --
51 -- TEST DESCRIPTION:
52 -- This test uses a variety of Wide_String, and wchar_array objects to
53 -- test versions of the To_C and To_Ada procedures.
54 --
55 -- This test assumes that the following characters are all included
56 -- in the implementation defined type Interfaces.C.wchar_t:
57 -- ' ', 'a'..'z', 'A'..'Z', and '-'.
58 --
59 -- APPLICABILITY CRITERIA:
60 -- This test is applicable to all implementations that provide
61 -- package Interfaces.C. If an implementation provides
62 -- package Interfaces.C, this test must compile, execute, and
63 -- report "PASSED".
64 --
65 -- CHANGE HISTORY:
66 -- 01 Sep 95 SAIC Initial prerelease version.
67 -- 09 May 96 SAIC Incorporated reviewer comments for ACVC 2.1.
68 -- 26 Oct 96 SAIC Incorporated reviewer comments.
69 -- 14 Sep 99 RLB Removed incorrect and unnecessary
70 -- Unchecked_Conversion.
71 --
72 --!
73
74 with Report;
75 with Interfaces.C; -- N/A => ERROR
76 with Ada.Characters.Latin_1;
77 with Ada.Characters.Handling;
78 with Ada.Exceptions;
79 with Ada.Strings.Wide_Fixed;
80
81 procedure CXB3007 is
82 begin
83
84 Report.Test ("CXB3007", "Check that the procedures To_C and To_Ada " &
85 "for wide strings produce correct results");
86 Test_Block:
87 declare
88
89 use Interfaces, Interfaces.C;
90 use Ada.Characters, Ada.Characters.Handling;
91 use Ada.Exceptions;
92 use Ada.Strings.Wide_Fixed;
93
94 TC_Short_Wide_String : Wide_String(1..4) :=
95 (others => Wide_Character'First);
96 TC_Wide_String : Wide_String(1..8) :=
97 (others => Wide_Character'First);
98 TC_wchar_array : wchar_array(0..7) := (others => wchar_t'First);
99 TC_size_t_Count : size_t := size_t'First;
100 TC_Natural_Count : Natural := Natural'First;
101
102
103 -- We can use the wide character forms of To_Ada and To_C here to check
104 -- the results; they were tested in CXB3006. We give them different
105 -- names to avoid confusion below.
106
107 function Wide_Character_to_wchar_t (Source : in Wide_Character)
108 return wchar_t renames To_C;
109 function wchar_t_to_Wide_Character (Source : in wchar_t)
110 return Wide_Character renames To_Ada;
111
112 begin
113
114 -- Check that the procedure To_C converts the Wide_Character elements
115 -- of a Wide_String parameter into wchar_t elements of wchar_array out
116 -- parameter Target.
117 --
118 -- Case of wide_nul termination.
119
120 TC_Wide_String(1..6) := "abcdef";
121
122 To_C (Item => TC_Wide_String(1..6), -- Source slice of length 6.
123 Target => TC_wchar_array,
124 Count => TC_size_t_Count,
125 Append_Nul => True);
126
127 -- Check that the out parameter Count is set to the appropriate value
128 -- for the wide_nul terminated case.
129
130 if TC_size_t_Count /= 7 then
131 Report.Failed("Incorrect setting of out parameter Count by " &
132 "Procedure To_C when Append_Nul => True");
133 end if;
134
135 for i in 1..TC_size_t_Count-1 loop
136 if wchar_t_to_Wide_Character(TC_wchar_array(i-1)) /=
137 TC_Wide_String(Integer(i))
138 then
139 Report.Failed("Incorrect result from Procedure To_C when " &
140 "checking individual wchar_t values, case of " &
141 "Append_Nul => True; " &
142 "wchar_t position = " & Integer'Image(Integer(i)));
143 end if;
144 end loop;
145
146 if not Is_Nul_Terminated(TC_wchar_array) then
147 Report.Failed("No wide_nul wchar_t appended to the wchar_array " &
148 "result from Procedure To_C when Append_Nul => True");
149 end if;
150
151 if TC_wchar_array(0..6) /= To_C("abcdef", True) then
152 Report.Failed("Incorrect result from Procedure To_C when " &
153 "directly comparing wchar_array results, case " &
154 "of Append_Nul => True");
155 end if;
156
157
158 -- Check Procedure To_C with no wide_nul termination.
159
160 TC_wchar_array := (others => Wide_Character_to_wchar_t('M'));
161 TC_Wide_String(1..4) := "WXYZ";
162
163 To_C (Item => TC_Wide_String(1..4), -- Source slice of length 4.
164 Target => TC_wchar_array,
165 Count => TC_size_t_Count,
166 Append_Nul => False);
167
168 -- Check that the out parameter Count is set to the appropriate value
169 -- for the non-wide_nul terminated case.
170
171 if TC_size_t_Count /= 4 then
172 Report.Failed("Incorrect setting of out parameter Count by " &
173 "Procedure To_C when Append_Nul => False");
174 end if;
175
176 for i in 1..TC_size_t_Count loop
177 if wchar_t_to_Wide_Character(TC_wchar_array(i-1)) /=
178 TC_Wide_String(Integer(i))
179 then
180 Report.Failed("Incorrect result from Procedure To_C when " &
181 "checking individual wchar_t values, case of " &
182 "Append_Nul => False; " &
183 "wchar_t position = " & Integer'Image(Integer(i)));
184 end if;
185 end loop;
186
187 if Is_Nul_Terminated(TC_wchar_array) then
188 Report.Failed
189 ("The wide_nul wchar_t was appended to the wchar_array " &
190 "result of Procedure To_C when Append_Nul => False");
191 end if;
192
193 if TC_wchar_array(0..3) /= To_C("WXYZ", False) then
194 Report.Failed("Incorrect result from Procedure To_C when " &
195 "directly comparing wchar_array results, case " &
196 "of Append_Nul => False");
197 end if;
198
199
200
201 -- Check that Constraint_Error is raised by procedure To_C if the
202 -- length of the target wchar_array parameter is not sufficient to
203 -- hold the converted Wide_String value (plus wide_nul if Append_Nul
204 -- is True).
205
206 TC_wchar_array := (others => wchar_t'First);
207 begin
208 To_C("A string too long",
209 TC_wchar_array,
210 TC_size_t_Count,
211 Append_Nul => True);
212
213 Report.Failed("Constraint_Error not raised when the Target " &
214 "parameter of Procedure To_C is not long enough " &
215 "to hold the converted Wide_String");
216 Report.Comment
217 (To_Character(wchar_t_to_Wide_Character(TC_wchar_array(0))) &
218 " printed to defeat optimization");
219 exception
220 when Constraint_Error => null; -- OK, expected exception.
221 when others =>
222 Report.Failed("Incorrect exception raised by Procedure " &
223 "To_C when the Target parameter is not long " &
224 "enough to contain the wchar_array result");
225 end;
226
227
228
229 -- Check that the procedure To_Ada converts wchar_t elements of the
230 -- wchar_array parameter Item to the corresponding Wide_Character
231 -- elements of Wide_String out parameter Target, with result wide
232 -- string length based on the Trim_Nul parameter.
233 --
234 -- Case of appended wide_nul wchar_t on the wchar_array In parameter.
235
236 TC_wchar_array :=
237 To_C ("ACVC-95", Append_Nul => True); -- 8 total chars.
238
239 To_Ada (Item => TC_wchar_array,
240 Target => TC_Wide_String,
241 Count => TC_Natural_Count,
242 Trim_Nul => False);
243
244 if TC_Natural_Count /= 8 then
245 Report.Failed("Incorrect value returned in out parameter Count " &
246 "by Procedure To_Ada, case of Trim_Nul => False");
247 end if;
248
249 for i in 1..TC_Natural_Count loop
250 if Wide_Character_to_wchar_t(TC_Wide_String(i)) /=
251 TC_wchar_array(size_t(i-1))
252 then
253 Report.Failed("Incorrect result from Procedure To_Ada when " &
254 "checking individual wchar_t values, case of " &
255 "Trim_Nul => False, when a wide_nul is present " &
256 "in the wchar_array input parameter; " &
257 "position = " & Integer'Image(Integer(i)));
258 end if;
259 end loop;
260
261 if TC_Wide_String(TC_Natural_Count) /= To_Wide_Character(Latin_1.Nul)
262 then
263 Report.Failed("Last Wide_Character of Wide_String result of " &
264 "Procedure To_Ada is not Nul, even though a " &
265 "wide_nul was present in the wchar_array argument, " &
266 "and the Trim_Nul parameter was set to False");
267 end if;
268
269
270 TC_Wide_String := (others => Wide_Character'First);
271 TC_wchar_array(0..3) := To_C ("XYz", Append_Nul => True); -- 4 chars.
272
273 To_Ada (Item => TC_wchar_array,
274 Target => TC_Wide_String,
275 Count => TC_Natural_Count,
276 Trim_Nul => True);
277
278 if TC_Natural_Count /= 3 then
279 Report.Failed("Incorrect value returned in out parameter Count " &
280 "by Procedure To_Ada, case of Trim_Nul => True");
281 end if;
282
283 for i in 1..TC_Natural_Count loop
284 if Wide_Character_to_wchar_t(TC_Wide_String(i)) /=
285 TC_wchar_array(size_t(i-1))
286 then
287 Report.Failed("Incorrect result from Procedure To_Ada when " &
288 "checking individual wchar_t values, case of " &
289 "Trim_Nul => True, when a wide_nul is present " &
290 "in the wchar_array input parameter; " &
291 "position = " & Integer'Image(Integer(i)));
292 end if;
293 end loop;
294
295 if TC_Wide_String(TC_Natural_Count) = To_Wide_Character(Latin_1.Nul)
296 then
297 Report.Failed("Last Wide_Character of Wide_String result of " &
298 "Procedure To_Ada is Nul, even though the " &
299 "Trim_Nul parameter was set to True");
300 end if;
301
302 if TC_Wide_String(TC_Natural_Count+1) /= Wide_Character'First then
303 Report.Failed("Incorrect replacement from To_Ada");
304 end if;
305
306
307 -- Case of no wide_nul wchar_t present in the wchar_array argument.
308
309 TC_Wide_String := (others => Wide_Character'First);
310 TC_wchar_array := To_C ("ABCDWXYZ", Append_Nul => False);
311
312 To_Ada (Item => TC_wchar_array,
313 Target => TC_Wide_String,
314 Count => TC_Natural_Count,
315 Trim_Nul => False);
316
317 if TC_Natural_Count /= 8 then
318 Report.Failed("Incorrect value returned in out parameter Count " &
319 "by Procedure To_Ada, case of Trim_Nul => False, " &
320 "with no wide_nul wchar_t present in the parameter " &
321 "Item");
322 end if;
323
324 for i in 1..TC_Natural_Count loop
325 if Wide_Character_to_wchar_t(TC_Wide_String(i)) /=
326 TC_wchar_array(size_t(i-1))
327 then
328 Report.Failed("Incorrect result from Procedure To_Ada when " &
329 "checking individual wchar_t values, case of " &
330 "Trim_Nul => False, when a wide_nul is not " &
331 "present in the wchar_array input parameter; " &
332 "position = " & Integer'Image(Integer(i)));
333 end if;
334 end loop;
335
336 if TC_Wide_String(TC_Natural_Count) = To_Wide_Character(Latin_1.Nul)
337 then
338 Report.Failed("Last Wide_Character of Wide_String result of " &
339 "Procedure To_Ada is Nul, even though the wide_nul " &
340 "wchar_t was not present in the parameter Item, " &
341 "with the parameter Trim_Nul => False");
342 end if;
343
344
345
346 -- Check that the Procedure To_Ada raises Terminator_Error if the
347 -- parameter Trim_Nul is set to True, but the actual Item parameter
348 -- does not contain the wide_nul wchar_t.
349
350 begin
351 TC_Wide_String := (others => Wide_Character'First);
352 TC_wchar_array := To_C ("ABCDWXYZ", Append_Nul => False);
353
354 To_Ada(TC_wchar_array,
355 TC_Wide_String,
356 Count => TC_Natural_Count,
357 Trim_Nul => True);
358
359 Report.Failed("Terminator_Error not raised when Item " &
360 "parameter of To_Ada does not contain the " &
361 "wide_nul wchar_t, but parameter Trim_Nul => True");
362 Report.Comment(To_String(TC_Wide_String) &
363 " printed to defeat optimization");
364 exception
365 when Terminator_Error => null; -- OK, expected exception.
366 when others =>
367 Report.Failed("Incorrect exception raised by Procedure " &
368 "To_Ada when the Item parameter does not " &
369 "contain the wide_nul wchar_t, but parameter " &
370 "Trim_Nul => True");
371 end;
372
373
374
375 -- Check that Constraint_Error is propagated by procedure To_Ada if the
376 -- length of Wide_String parameter Target is not long enough to hold the
377 -- converted wchar_array value (plus wide_nul if Trim_Nul is False).
378
379 begin
380 TC_wchar_array(0..4) := To_C ("ABCD", Append_Nul => True);
381
382 To_Ada(TC_wchar_array(0..4),
383 TC_Short_Wide_String, -- Length of 4.
384 Count => TC_Natural_Count,
385 Trim_Nul => False);
386
387 Report.Failed("Constraint_Error not raised when Wide_String " &
388 "parameter Target of Procedure To_Ada is not " &
389 "long enough to hold the converted wchar_ts");
390 Report.Comment(To_String(TC_Short_Wide_String) &
391 " printed to defeat optimization");
392 exception
393 when Constraint_Error => null; -- OK, expected exception.
394 when others =>
395 Report.Failed("Incorrect exception raised by Procedure " &
396 "To_Ada when Wide_String parameter Target is " &
397 "not long enough to hold the converted wchar_ts");
398 end;
399
400 exception
401 when The_Error : others =>
402 Report.Failed ("The following exception was raised in the " &
403 "Test_Block: " & Exception_Name(The_Error));
404 end Test_Block;
405
406 Report.Result;
407
408 end CXB3007;