1 /*
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright © 2024, Synopsys Inc.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 *
13 * 2. Redistributions in binary form must reproduce the above
14 * copyright notice, this list of conditions and the following
15 * disclaimer in the documentation and/or other materials provided
16 * with the distribution.
17 *
18 * 3. Neither the name of the copyright holder nor the names of its
19 * contributors may be used to endorse or promote products derived
20 * from this software without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
24 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
25 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
26 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
27 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
28 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
29 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
31 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
32 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
33 * OF THE POSSIBILITY OF SUCH DAMAGE.
34 */
35 #define _DEFAULT_SOURCE
36 #include <stdio.h>
37 #include <stdlib.h>
38
39 #ifndef TEST_FILE_NAME
40 #define TEST_FILE_NAME "FGETC.TXT"
41 #endif
42
43 #define check(condition, message) do { \
44 if (!(condition)) { \
45 printf("%s: %s\n", message, #condition); \
46 if (f) \
47 fclose(f); \
48 (void) remove(TEST_FILE_NAME); \
49 exit(1); \
50 } \
51 } while(0)
52
53
54 int
main(void)55 main(void)
56 {
57 FILE *f;
58 int ch;
59
60 /* Make sure we can create a file */
61 f = fopen(TEST_FILE_NAME, "w");
62 check(f != NULL, "Error opening file");
63
64 // Get error indicator before reading
65 check(ferror(f) == 0, "Error occured before reading");
66
67 // Attempt to read from the file
68 ch = fgetc(f);
69 check(ch == EOF, "fgetc returns non EOF");
70
71 // Get error indicator after reading
72 check(ferror(f) != 0, "After reading from non readable stream, the error flag of straem f is not set");
73
74 // Close the file
75 fclose(f);
76
77 (void) remove(TEST_FILE_NAME);
78
79 exit(0);
80 }
81
