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1/* Simple test of putwc in the C locale.
2 Copyright (C) 2000-2019 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Ulrich Drepper <drepper@cygnus.com>, 2000.
5
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
10
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
15
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, see
18 <http://www.gnu.org/licenses/>. */
19
20#include <errno.h>
21#include <error.h>
22#include <stdio.h>
23#include <stdlib.h>
24#include <wchar.h>
25
26static const char outname[] = OBJPFX "tst_putwc.temp";
27
28/* Prototype for our test function. */
29int do_test (void);
30#define TEST_FUNCTION do_test ()
31
32/* This defines the `main' function and some more. */
33#include <test-skeleton.c>
34
35int
36do_test (void)
37{
38 const wchar_t str[] = L"This is a test of putwc\n";
39 wchar_t buf[100];
40 size_t n = 0;
41 FILE *fp;
42 int res = 0;
43
44 add_temp_file (outname);
45
46 fp = fopen (outname, "w+");
47 if (fp == NULL)
48 error (EXIT_FAILURE, errno, "cannot open temporary file");
49
50 for (n = 0; str[n] != L'\0'; ++n)
51 putwc (str[n], fp);
52
53 /* First try reading after rewinding. */
54 rewind (fp);
55
56 wmemset (buf, L'\0', sizeof (buf) / sizeof (buf[0]));
57 n = 0;
58 while (! feof (fp) && n < sizeof (buf) - 1)
59 {
60 buf[n] = getwc (fp);
61 if (buf[n] == WEOF)
62 break;
63 ++n;
64 }
65 buf[n] = L'\0';
66
67 if (wcscmp (buf, L"This is a test of putwc\n") != 0)
68 {
69 puts ("first comparison failed");
70 res = 1;
71 }
72
73 /* Now close the file, open it again, and read again. */
74 if (fclose (fp) != 0)
75 {
76 printf ("failure during fclose: %m\n");
77 res = 1;
78 }
79
80 fp = fopen (outname, "r");
81 if (fp == NULL)
82 {
83 printf ("cannot reopen file: %m\n");
84 return 1;
85 }
86
87 /* We can remove the file now. */
88 remove (outname);
89
90 wmemset (buf, L'\0', sizeof (buf) / sizeof (buf[0]));
91 n = 0;
92 while (! feof (fp) && n < sizeof (buf) - 1)
93 {
94 buf[n] = getwc (fp);
95 if (buf[n] == WEOF)
96 break;
97 ++n;
98 }
99 buf[n] = L'\0';
100
101 if (wcscmp (buf, L"This is a test of putwc\n") != 0)
102 {
103 puts ("second comparison failed");
104 res = 1;
105 }
106
107 if (fclose (fp) != 0)
108 {
109 printf ("failure during fclose: %m\n");
110 res = 1;
111 }
112
113 /* Next test: write a bit more than a few bytes. */
114 fp = fopen (outname, "w");
115 if (fp == NULL)
116 error (EXIT_FAILURE, errno, "cannot open temporary file");
117
118 for (n = 0; n < 4098; ++n)
119 putwc (n & 255, fp);
120
121 fclose (fp);
122
123 return res;
124}
125

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