Warning: That file was not part of the compilation database. It may have many parsing errors.

1#include <stdio.h>
2#include <string.h>
3#include <stdlib.h>
4
5
6static int
7do_test (void)
8{
9 size_t size;
10 char *buf;
11 FILE *fp = open_memstream (&buf, &size);
12 if (fp == NULL)
13 {
14 puts ("open_memstream failed");
15 return 1;
16 }
17
18 off64_t off = ftello64 (fp);
19 if (off != 0)
20 {
21 puts ("initial position wrong");
22 return 1;
23 }
24
25 if (fseek (fp, 32768, SEEK_SET) != 0)
26 {
27 puts ("fseek failed");
28 return 1;
29 }
30
31 if (fputs ("foo", fp) == EOF)
32 {
33 puts ("fputs failed");
34 return 1;
35 }
36
37 if (fclose (fp) == EOF)
38 {
39 puts ("fclose failed");
40 return 1;
41 }
42
43 if (size != 32768 + 3)
44 {
45 printf ("expected size %d, got %zu\n", 32768 + 3, size);
46 return 1;
47 }
48
49 for (int i = 0; i < 32768; ++i)
50 if (buf[i] != '\0')
51 {
52 printf ("byte at offset %d is %#hhx\n", i, buf[i]);
53 return 1;
54 }
55
56 if (memcmp (buf + 32768, "foo", 3) != 0)
57 {
58 puts ("written string incorrect");
59 return 1;
60 }
61
62 /* Mark the buffer. */
63 memset (buf, 'A', size);
64 free (buf);
65
66 /* Try again, this time with write mode enabled before the seek. */
67 fp = open_memstream (&buf, &size);
68 if (fp == NULL)
69 {
70 puts ("2nd open_memstream failed");
71 return 1;
72 }
73
74 off = ftello64 (fp);
75 if (off != 0)
76 {
77 puts ("2nd initial position wrong");
78 return 1;
79 }
80
81 if (fputs ("bar", fp) == EOF)
82 {
83 puts ("2nd fputs failed");
84 return 1;
85 }
86
87 if (fseek (fp, 32768, SEEK_SET) != 0)
88 {
89 puts ("2nd fseek failed");
90 return 1;
91 }
92
93 if (fputs ("foo", fp) == EOF)
94 {
95 puts ("3rd fputs failed");
96 return 1;
97 }
98
99 if (fclose (fp) == EOF)
100 {
101 puts ("2nd fclose failed");
102 return 1;
103 }
104
105 if (size != 32768 + 3)
106 {
107 printf ("2nd expected size %d, got %zu\n", 32768 + 3, size);
108 return 1;
109 }
110
111 if (memcmp (buf, "bar", 3) != 0)
112 {
113 puts ("initial string incorrect in 2nd try");
114 return 1;
115 }
116
117 for (int i = 3; i < 32768; ++i)
118 if (buf[i] != '\0')
119 {
120 printf ("byte at offset %d is %#hhx in 2nd try\n", i, buf[i]);
121 return 1;
122 }
123
124 if (memcmp (buf + 32768, "foo", 3) != 0)
125 {
126 puts ("written string incorrect in 2nd try");
127 return 1;
128 }
129
130 return 0;
131}
132
133#define TEST_FUNCTION do_test ()
134#include "../test-skeleton.c"
135

Warning: That file was not part of the compilation database. It may have many parsing errors.