Mercurial > gnulib

annotate tests/test-freadptr2.c @ 40196:e63f5d3edab5

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
relocatable-prog: Update documentation. * doc/relocatable-maint.texi (Supporting Relocation): Update to match the recent changes.
author Bruno Haible <bruno@clisp.org>
date Sun, 24 Feb 2019 01:49:15 +0100
parents b06060465f09
children 5d9b82ca550a
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
9779
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1 /* Test of freadptr() function.
40057
b06060465f09 maint: Run 'make update-copyright'
Paul Eggert <eggert@cs.ucla.edu>
parents: 19484
diff changeset
2 Copyright (C) 2007-2019 Free Software Foundation, Inc.
9779
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4 This program is free software: you can redistribute it and/or modify
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
5 it under the terms of the GNU General Public License as published by
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
6 the Free Software Foundation; either version 3 of the License, or
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
7 (at your option) any later version.
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
8
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
9 This program is distributed in the hope that it will be useful,
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
12 GNU General Public License for more details.
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
13
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
14 You should have received a copy of the GNU General Public License
19190
9759915b2aca all: prefer https: URLs
Paul Eggert <eggert@cs.ucla.edu>
parents: 18626
diff changeset
15 along with this program. If not, see <https://www.gnu.org/licenses/>. */
9779
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
16
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
17 /* Written by Bruno Haible <bruno@clisp.org>, 2007. */
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
18
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
19 #include <config.h>
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
20
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
21 #include "freadptr.h"
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
22
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
23 #include <stdio.h>
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
24 #include <stdlib.h>
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
25 #include <unistd.h>
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
26
12496
a48d3d749ca5 Refactor common macros used in tests.
Bruno Haible <bruno@clisp.org>
parents: 12421
diff changeset
27 #include "macros.h"
9779
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
28
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
29 static int
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
30 freadptrbufsize (FILE *fp)
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
31 {
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
32 size_t size = 0;
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
33
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
34 freadptr (fp, &size);
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
35 return size;
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
36 }
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
37
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
38 int
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
39 main (int argc, char **argv)
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
40 {
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
41 int nbytes = atoi (argv[1]);
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
42 if (nbytes > 0)
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
43 {
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
44 void *buf = malloc (nbytes);
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
45 ASSERT (fread (buf, 1, nbytes, stdin) == nbytes);
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
46 }
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
47
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
48 if (nbytes == 0)
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
49 ASSERT (freadptrbufsize (stdin) == 0);
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
50 else
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
51 {
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
52 if (lseek (0, 0, SEEK_CUR) == nbytes)
12421
e8d2c6fc33ad Use spaces for indentation, not tabs.
Bruno Haible <bruno@clisp.org>
parents: 9889
diff changeset
53 /* An unbuffered stdio, such as BeOS or on uClibc compiled without
e8d2c6fc33ad Use spaces for indentation, not tabs.
Bruno Haible <bruno@clisp.org>
parents: 9889
diff changeset
54 __STDIO_BUFFERS. */
e8d2c6fc33ad Use spaces for indentation, not tabs.
Bruno Haible <bruno@clisp.org>
parents: 9889
diff changeset
55 ASSERT (freadptrbufsize (stdin) == 0);
9779
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
56 else
12421
e8d2c6fc33ad Use spaces for indentation, not tabs.
Bruno Haible <bruno@clisp.org>
parents: 9889
diff changeset
57 /* Normal buffered stdio. */
e8d2c6fc33ad Use spaces for indentation, not tabs.
Bruno Haible <bruno@clisp.org>
parents: 9889
diff changeset
58 ASSERT (freadptrbufsize (stdin) != 0);
9779
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
59 }
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
60
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
61 return 0;
569a44f4dd4d Extend freadptr to return also the buffer size.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
62 }