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cfcfd461 | 1 | /* |
f7a9f785 | 2 | Copyright (C) 2015-2016 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 | |
17 | <http://www.gnu.org/licenses/>. */ | |
18 | ||
19 | #include <scratch_buffer.h> | |
20 | #include <stdbool.h> | |
21 | #include <stdio.h> | |
22 | #include <string.h> | |
23 | ||
24 | static bool | |
25 | unchanged_array_size (struct scratch_buffer *buf, size_t a, size_t b) | |
26 | { | |
27 | size_t old_length = buf->length; | |
28 | if (!scratch_buffer_set_array_size (buf, a, b)) | |
29 | { | |
30 | printf ("scratch_buffer_set_array_size failed: %zu %zu\n", | |
31 | a, b); | |
32 | return false; | |
33 | } | |
34 | if (old_length != buf->length) | |
35 | { | |
36 | printf ("scratch_buffer_set_array_size did not preserve size: %zu %zu\n", | |
37 | a, b); | |
38 | return false; | |
39 | } | |
40 | return true; | |
41 | } | |
42 | ||
43 | static bool | |
44 | array_size_must_fail (size_t a, size_t b) | |
45 | { | |
46 | for (int pass = 0; pass < 2; ++pass) | |
47 | { | |
48 | struct scratch_buffer buf; | |
49 | scratch_buffer_init (&buf); | |
50 | if (pass > 0) | |
51 | if (!scratch_buffer_grow (&buf)) | |
52 | { | |
53 | printf ("scratch_buffer_grow in array_size_must_fail failed\n"); | |
54 | return false; | |
55 | } | |
56 | if (scratch_buffer_set_array_size (&buf, a, b)) | |
57 | { | |
58 | printf ("scratch_buffer_set_array_size passed: %d %zu %zu\n", | |
59 | pass, a, b); | |
60 | return false; | |
61 | } | |
62 | if (buf.data != buf.__space) | |
63 | { | |
64 | printf ("scratch_buffer_set_array_size did not free: %d %zu %zu\n", | |
65 | pass, a, b); | |
66 | return false; | |
67 | } | |
68 | } | |
69 | return true; | |
70 | } | |
71 | ||
72 | static int | |
73 | do_test (void) | |
74 | { | |
75 | { | |
76 | struct scratch_buffer buf; | |
77 | scratch_buffer_init (&buf); | |
78 | memset (buf.data, ' ', buf.length); | |
79 | scratch_buffer_free (&buf); | |
80 | } | |
81 | { | |
82 | struct scratch_buffer buf; | |
83 | scratch_buffer_init (&buf); | |
84 | memset (buf.data, ' ', buf.length); | |
85 | size_t old_length = buf.length; | |
86 | scratch_buffer_grow (&buf); | |
87 | if (buf.length <= old_length) | |
88 | { | |
89 | printf ("scratch_buffer_grow did not enlarge buffer\n"); | |
90 | return 1; | |
91 | } | |
92 | memset (buf.data, ' ', buf.length); | |
93 | scratch_buffer_free (&buf); | |
94 | } | |
95 | { | |
96 | struct scratch_buffer buf; | |
97 | scratch_buffer_init (&buf); | |
98 | memset (buf.data, '@', buf.length); | |
99 | strcpy (buf.data, "prefix"); | |
100 | size_t old_length = buf.length; | |
101 | scratch_buffer_grow_preserve (&buf); | |
102 | if (buf.length <= old_length) | |
103 | { | |
104 | printf ("scratch_buffer_grow_preserve did not enlarge buffer\n"); | |
105 | return 1; | |
106 | } | |
107 | if (strcmp (buf.data, "prefix") != 0) | |
108 | { | |
109 | printf ("scratch_buffer_grow_preserve did not copy buffer\n"); | |
110 | return 1; | |
111 | } | |
112 | for (unsigned i = 7; i < old_length; ++i) | |
113 | if (((char *)buf.data)[i] != '@') | |
114 | { | |
115 | printf ("scratch_buffer_grow_preserve did not copy buffer (%u)\n", | |
116 | i); | |
117 | return 1; | |
118 | } | |
119 | scratch_buffer_free (&buf); | |
120 | } | |
121 | { | |
122 | struct scratch_buffer buf; | |
123 | scratch_buffer_init (&buf); | |
124 | for (int pass = 0; pass < 4; ++pass) | |
125 | { | |
126 | if (!(unchanged_array_size (&buf, 0, 0) | |
127 | && unchanged_array_size (&buf, 1, 0) | |
128 | && unchanged_array_size (&buf, 0, 1) | |
129 | && unchanged_array_size (&buf, -1, 0) | |
130 | && unchanged_array_size (&buf, 0, -1) | |
131 | && unchanged_array_size (&buf, 1ULL << 16, 0) | |
132 | && unchanged_array_size (&buf, 0, 1ULL << 16) | |
2902af16 FW |
133 | && unchanged_array_size (&buf, (size_t) (1ULL << 32), 0) |
134 | && unchanged_array_size (&buf, 0, (size_t) (1ULL << 32)))) | |
cfcfd461 FW |
135 | return 1; |
136 | if (!scratch_buffer_grow (&buf)) | |
137 | { | |
138 | printf ("scratch_buffer_grow_failed (pass %d)\n", pass); | |
139 | } | |
140 | } | |
141 | scratch_buffer_free (&buf); | |
142 | } | |
143 | { | |
144 | if (!(array_size_must_fail (-1, 1) | |
145 | && array_size_must_fail (-1, -1) | |
146 | && array_size_must_fail (1, -1) | |
147 | && array_size_must_fail (((size_t)-1) / 4, 4) | |
148 | && array_size_must_fail (4, ((size_t)-1) / 4))) | |
149 | return 1; | |
150 | } | |
151 | return 0; | |
152 | } | |
153 | ||
154 | #define TEST_FUNCTION do_test () | |
155 | #include "../test-skeleton.c" |