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cfcfd461 | 1 | /* |
dff8da6b | 2 | Copyright (C) 2015-2024 Free Software Foundation, Inc. |
cfcfd461 FW |
3 | This file is part of the GNU C Library. |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Lesser General Public | |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
9 | ||
10 | The GNU C Library is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public | |
16 | License along with the GNU C Library; if not, see | |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
cfcfd461 | 18 | |
448a2563 | 19 | #include <array_length.h> |
cfcfd461 | 20 | #include <scratch_buffer.h> |
448a2563 AZ |
21 | #include <support/check.h> |
22 | #include <support/support.h> | |
cfcfd461 FW |
23 | #include <stdbool.h> |
24 | #include <stdio.h> | |
25 | #include <string.h> | |
26 | ||
27 | static bool | |
28 | unchanged_array_size (struct scratch_buffer *buf, size_t a, size_t b) | |
29 | { | |
30 | size_t old_length = buf->length; | |
31 | if (!scratch_buffer_set_array_size (buf, a, b)) | |
32 | { | |
33 | printf ("scratch_buffer_set_array_size failed: %zu %zu\n", | |
34 | a, b); | |
35 | return false; | |
36 | } | |
37 | if (old_length != buf->length) | |
38 | { | |
39 | printf ("scratch_buffer_set_array_size did not preserve size: %zu %zu\n", | |
40 | a, b); | |
41 | return false; | |
42 | } | |
43 | return true; | |
44 | } | |
45 | ||
46 | static bool | |
47 | array_size_must_fail (size_t a, size_t b) | |
48 | { | |
49 | for (int pass = 0; pass < 2; ++pass) | |
50 | { | |
51 | struct scratch_buffer buf; | |
52 | scratch_buffer_init (&buf); | |
53 | if (pass > 0) | |
54 | if (!scratch_buffer_grow (&buf)) | |
55 | { | |
56 | printf ("scratch_buffer_grow in array_size_must_fail failed\n"); | |
57 | return false; | |
58 | } | |
59 | if (scratch_buffer_set_array_size (&buf, a, b)) | |
60 | { | |
61 | printf ("scratch_buffer_set_array_size passed: %d %zu %zu\n", | |
62 | pass, a, b); | |
63 | return false; | |
64 | } | |
5f9f31ad | 65 | if (buf.data != buf.__space.__c) |
cfcfd461 FW |
66 | { |
67 | printf ("scratch_buffer_set_array_size did not free: %d %zu %zu\n", | |
68 | pass, a, b); | |
69 | return false; | |
70 | } | |
71 | } | |
72 | return true; | |
73 | } | |
74 | ||
75 | static int | |
76 | do_test (void) | |
77 | { | |
78 | { | |
79 | struct scratch_buffer buf; | |
80 | scratch_buffer_init (&buf); | |
81 | memset (buf.data, ' ', buf.length); | |
82 | scratch_buffer_free (&buf); | |
83 | } | |
84 | { | |
85 | struct scratch_buffer buf; | |
86 | scratch_buffer_init (&buf); | |
87 | memset (buf.data, ' ', buf.length); | |
88 | size_t old_length = buf.length; | |
89 | scratch_buffer_grow (&buf); | |
90 | if (buf.length <= old_length) | |
91 | { | |
92 | printf ("scratch_buffer_grow did not enlarge buffer\n"); | |
93 | return 1; | |
94 | } | |
95 | memset (buf.data, ' ', buf.length); | |
96 | scratch_buffer_free (&buf); | |
97 | } | |
98 | { | |
99 | struct scratch_buffer buf; | |
100 | scratch_buffer_init (&buf); | |
101 | memset (buf.data, '@', buf.length); | |
102 | strcpy (buf.data, "prefix"); | |
103 | size_t old_length = buf.length; | |
104 | scratch_buffer_grow_preserve (&buf); | |
105 | if (buf.length <= old_length) | |
106 | { | |
107 | printf ("scratch_buffer_grow_preserve did not enlarge buffer\n"); | |
108 | return 1; | |
109 | } | |
110 | if (strcmp (buf.data, "prefix") != 0) | |
111 | { | |
112 | printf ("scratch_buffer_grow_preserve did not copy buffer\n"); | |
113 | return 1; | |
114 | } | |
115 | for (unsigned i = 7; i < old_length; ++i) | |
116 | if (((char *)buf.data)[i] != '@') | |
117 | { | |
118 | printf ("scratch_buffer_grow_preserve did not copy buffer (%u)\n", | |
119 | i); | |
120 | return 1; | |
121 | } | |
122 | scratch_buffer_free (&buf); | |
123 | } | |
124 | { | |
125 | struct scratch_buffer buf; | |
126 | scratch_buffer_init (&buf); | |
127 | for (int pass = 0; pass < 4; ++pass) | |
128 | { | |
129 | if (!(unchanged_array_size (&buf, 0, 0) | |
130 | && unchanged_array_size (&buf, 1, 0) | |
131 | && unchanged_array_size (&buf, 0, 1) | |
132 | && unchanged_array_size (&buf, -1, 0) | |
133 | && unchanged_array_size (&buf, 0, -1) | |
134 | && unchanged_array_size (&buf, 1ULL << 16, 0) | |
135 | && unchanged_array_size (&buf, 0, 1ULL << 16) | |
2902af16 FW |
136 | && unchanged_array_size (&buf, (size_t) (1ULL << 32), 0) |
137 | && unchanged_array_size (&buf, 0, (size_t) (1ULL << 32)))) | |
cfcfd461 FW |
138 | return 1; |
139 | if (!scratch_buffer_grow (&buf)) | |
140 | { | |
141 | printf ("scratch_buffer_grow_failed (pass %d)\n", pass); | |
142 | } | |
143 | } | |
144 | scratch_buffer_free (&buf); | |
145 | } | |
146 | { | |
147 | if (!(array_size_must_fail (-1, 1) | |
148 | && array_size_must_fail (-1, -1) | |
149 | && array_size_must_fail (1, -1) | |
150 | && array_size_must_fail (((size_t)-1) / 4, 4) | |
151 | && array_size_must_fail (4, ((size_t)-1) / 4))) | |
152 | return 1; | |
153 | } | |
154 | return 0; | |
155 | } | |
156 | ||
448a2563 | 157 | #include <support/test-driver.c> |