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author kono
date Fri, 27 Oct 2017 22:46:09 +0900
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1 -- CXB3011.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 version of Function Value with a chars_ptr parameter
28 -- that returns a String result returns an Ada string containing the
29 -- characters pointed to by the chars_ptr parameter, up to (but not
30 -- including) the terminating nul.
31 --
32 -- Check that the version of Function Value with a chars_ptr parameter
33 -- and a size_t parameter that returns a String result returns the
34 -- shorter of:
35 -- 1) a String of the first size_t number of characters, or
36 -- 2) a String of characters up to (but not including) the
37 -- terminating nul.
38 --
39 -- Check that the Function Strlen returns a size_t result that
40 -- corresponds to the number of chars in the array pointed to by Item,
41 -- up to but not including the terminating nul.
42 --
43 -- Check that both of the above versions of Function Value and
44 -- Function Strlen propagate Dereference_Error if the Item parameter
45 -- is Null_Ptr.
46 --
47 -- TEST DESCRIPTION:
48 -- This test validates two versions of Function Value, and the Function
49 -- Strlen. A series of char_ptr values are provided as input, and
50 -- results are compared for length or content.
51 --
52 -- This test assumes that the following characters are all included
53 -- in the implementation defined type Interfaces.C.char:
54 -- ' ', 'a'..'z', 'A'..'Z', '0'..'9', '*' and '.'.
55 --
56 -- APPLICABILITY CRITERIA:
57 -- This test is applicable to all implementations that provide
58 -- package Interfaces.C.Strings. If an implementation provides
59 -- package Interfaces.C.Strings, this test must compile, execute,
60 -- and report "PASSED".
61 --
62 --
63 -- CHANGE HISTORY:
64 -- 28 Sep 95 SAIC Initial prerelease version.
65 -- 13 May 96 SAIC Incorporated reviewer comments for ACVC 2.1.
66 -- 26 Oct 96 SAIC Incorporated reviewer comments.
67 --
68 --!
69
70 with Report;
71 with Ada.Characters.Latin_1;
72 with Interfaces.C.Strings; -- N/A => ERROR
73
74 procedure CXB3011 is
75 begin
76
77 Report.Test ("CXB3011", "Check that the two versions of Function Value " &
78 "returning a String result, and the Function " &
79 "Strlen, produce correct results");
80
81 Test_Block:
82 declare
83
84 package IC renames Interfaces.C;
85 package ICS renames Interfaces.C.Strings;
86 package ACL1 renames Ada.Characters.Latin_1;
87
88 use type IC.char_array;
89 use type IC.size_t;
90 use type ICS.chars_ptr;
91
92 Null_Char_Array_Access : constant ICS.char_array_access := null;
93
94 TC_String : String(1..5) := (others => 'X');
95 TC_String_1 : constant String := "*.3*0";
96 TC_String_2 : constant String := "Two";
97 TC_String_3 : constant String := "Five5";
98 TC_Blank_String : constant String(1..5) := (others => ' ');
99
100 TC_char_array : IC.char_array :=
101 IC.To_C(TC_Blank_String, True);
102 TC_char_array_1 : constant IC.char_array :=
103 IC.To_C(TC_String_1, True);
104 TC_char_array_2 : constant IC.char_array :=
105 IC.To_C(TC_String_2, True);
106 TC_char_array_3 : constant IC.char_array :=
107 IC.To_C(TC_String_3, True);
108 TC_Blank_char_array : constant IC.char_array :=
109 IC.To_C(TC_Blank_String, True);
110
111 TC_chars_ptr : ICS.chars_ptr :=
112 ICS.New_Char_Array(TC_Blank_char_array);
113
114 TC_size_t : IC.size_t := IC.size_t'First;
115
116
117 begin
118
119 -- Check that the version of Function Value with a chars_ptr parameter
120 -- that returns a String result returns an Ada string containing the
121 -- characters pointed to by the chars_ptr parameter, up to (but not
122 -- including) the terminating nul.
123
124 TC_chars_ptr := ICS.New_Char_Array(TC_char_array_1);
125 TC_String := ICS.Value(Item => TC_chars_ptr);
126
127 if TC_String /= TC_String_1 or
128 TC_String(TC_String'Last) = ACL1.NUL
129 then
130 Report.Failed("Incorrect result from Function Value - 1");
131 end if;
132
133 TC_chars_ptr := ICS.New_Char_Array(TC_char_array_2);
134
135 if ICS.Value(Item => TC_chars_ptr) /=
136 IC.To_Ada(ICS.Value(TC_chars_ptr), Trim_Nul => True)
137 then
138 Report.Failed("Incorrect result from Function Value - 2");
139 end if;
140
141 TC_chars_ptr := ICS.New_Char_Array(TC_char_array_3);
142 TC_String := ICS.Value(TC_chars_ptr);
143
144 if TC_String /= TC_String_3 or
145 TC_String(TC_String'Last) = ACL1.NUL
146 then
147 Report.Failed("Incorrect result from Function Value - 3");
148 end if;
149
150
151 -- Check that the version of Function Value with a chars_ptr parameter
152 -- and a size_t parameter that returns a String result returns the
153 -- shorter of:
154 -- 1) a String of the first size_t number of characters, or
155 -- 2) a String of characters up to (but not including) the
156 -- terminating nul.
157 --
158
159 -- Case 1 : Length parameter specifies a length shorter than total
160 -- length.
161
162 TC_chars_ptr := ICS.New_Char_Array(TC_char_array_1);
163 TC_String := "XXXXX"; -- Reinitialize all characters in string.
164 TC_String(1..5) := ICS.Value(Item => TC_chars_ptr, Length => 6);
165
166 if TC_String(1..4) /= TC_String_1(1..4) or
167 TC_String(TC_String'Last) = ACL1.NUL
168 then
169 Report.Failed("Incorrect result from Function Value - 4");
170 end if;
171
172 -- Case 2 : Length parameter specifies total length.
173
174 TC_chars_ptr := ICS.New_Char_Array(TC_char_array_2);
175
176 if ICS.Value(TC_chars_ptr, Length => 5) /=
177 IC.To_Ada(ICS.Value(TC_chars_ptr), Trim_Nul => True)
178 then
179 Report.Failed("Incorrect result from Function Value - 5");
180 end if;
181
182 -- Case 3 : Length parameter specifies a length longer than total
183 -- length.
184
185 TC_chars_ptr := ICS.New_Char_Array(TC_char_array_3);
186 TC_String := "XXXXX"; -- Reinitialize all characters in string.
187 TC_String := ICS.Value(TC_chars_ptr, 7);
188
189 if TC_String /= TC_String_3 or
190 TC_String(TC_String'Last) = ACL1.NUL
191 then
192 Report.Failed("Incorrect result from Function Value - 6");
193 end if;
194
195
196 -- Check that the Function Strlen returns a size_t result that
197 -- corresponds to the number of chars in the array pointed to by
198 -- parameter Item, up to but not including the terminating nul.
199
200 TC_chars_ptr := ICS.New_Char_Array(IC.To_C("A longer string value"));
201 TC_size_t := ICS.Strlen(TC_chars_ptr);
202
203 if TC_size_t /= 21 then
204 Report.Failed("Incorrect result from Function Strlen - 1");
205 end if;
206
207 TC_chars_ptr := ICS.New_Char_Array(TC_char_array_2);
208 TC_size_t := ICS.Strlen(TC_chars_ptr);
209
210 if TC_size_t /= 3 then -- Nul not included in length.
211 Report.Failed("Incorrect result from Function Strlen - 2");
212 end if;
213
214 TC_chars_ptr := ICS.New_Char_Array(IC.To_C(""));
215 TC_size_t := ICS.Strlen(TC_chars_ptr);
216
217 if TC_size_t /= 0 then
218 Report.Failed("Incorrect result from Function Strlen - 3");
219 end if;
220
221
222 -- Check that both of the above versions of Function Value and
223 -- function Strlen propagate Dereference_Error if the Item parameter
224 -- is Null_Ptr.
225
226 begin
227 TC_chars_ptr := ICS.Null_Ptr;
228 TC_String := ICS.Value(Item => TC_chars_ptr);
229 Report.Failed("Function Value (without Length parameter) did not " &
230 "raise Dereference_Error when provided a null Item " &
231 "parameter input value");
232 if TC_String(1) = '1' then -- Defeat optimization.
233 Report.Comment("Should never be printed");
234 end if;
235 exception
236 when ICS.Dereference_Error => null; -- OK, expected exception.
237 when others =>
238 Report.Failed("Incorrect exception raised by Function Value " &
239 "with Item parameter, when the Item parameter " &
240 "is Null_Ptr");
241 end;
242
243 begin
244 TC_chars_ptr := ICS.Null_Ptr;
245 TC_String := ICS.Value(Item => TC_chars_ptr, Length => 4);
246 Report.Failed("Function Value (with Length parameter) did not " &
247 "raise Dereference_Error when provided a null Item " &
248 "parameter input value");
249 if TC_String(1) = '1' then -- Defeat optimization.
250 Report.Comment("Should never be printed");
251 end if;
252 exception
253 when ICS.Dereference_Error => null; -- OK, expected exception.
254 when others =>
255 Report.Failed("Incorrect exception raised by Function Value " &
256 "with both Item and Length parameters, when " &
257 "the Item parameter is Null_Ptr");
258 end;
259
260 begin
261 TC_chars_ptr := ICS.Null_Ptr;
262 TC_size_t := ICS.Strlen(Item => TC_chars_ptr);
263 Report.Failed("Function Strlen did not raise Dereference_Error" &
264 "when provided a null Item parameter input value");
265 if TC_size_t = 35 then -- Defeat optimization.
266 Report.Comment("Should never be printed");
267 end if;
268 exception
269 when ICS.Dereference_Error => null; -- OK, expected exception.
270 when others =>
271 Report.Failed("Incorrect exception raised by Function Strlen " &
272 "when the Item parameter is Null_Ptr");
273 end;
274
275
276 exception
277 when others => Report.Failed ("Exception raised in Test_Block");
278 end Test_Block;
279
280 Report.Result;
281
282 end CXB3011;