annotate tests/test-vdprintf.c @ 17632:86af85d364e1 default tip

unistd: port readlink to Mac OS X 10.3.9 * lib/unistd.in.h (_GL_INCLUDING_UNISTD_H): New macro, to work around self-include problem in Mac OS X 10.3.9 when combined with readlink module. Problem reported by Klaus Zietler in <http://bugs.gnu.org/16825>.
author Paul Eggert <eggert@penguin.cs.ucla.edu>
date Tue, 25 Feb 2014 11:16:27 -0800 (2014-02-25)
parents 344018b6e5d7
children
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1 /* Test of vdprintf() function.
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2 Copyright (C) 2011-2014 Free Software Foundation, Inc.
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3
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4 This program is free software: you can redistribute it and/or modify
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5 it under the terms of the GNU General Public License as published by
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6 the Free Software Foundation; either version 3 of the License, or
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7 (at your option) any later version.
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8
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9 This program is distributed in the hope that it will be useful,
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10 but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 GNU General Public License for more details.
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13
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14 You should have received a copy of the GNU General Public License
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15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
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16
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17 #include <config.h>
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18
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19 #include <stdio.h>
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20
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21 #include "signature.h"
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22 SIGNATURE_CHECK (vdprintf, int, (int, const char *, va_list));
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23
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24 #include <errno.h>
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25 #include <unistd.h>
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26
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27 #include "macros.h"
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28
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29 static int
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30 my_dprintf (int fd, const char *format, ...)
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31 {
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32 va_list args;
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33 int ret;
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34
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35 va_start (args, format);
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36 ret = vdprintf (fd, format, args);
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37 va_end (args);
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38 return ret;
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39 }
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40
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41 int
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42 main (int argc, char *argv[])
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43 {
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44 /* Test behaviour for invalid file descriptors. */
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45 {
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46 errno = 0;
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47 ASSERT (my_dprintf (-1, "test") == -1);
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48 ASSERT (errno == EBADF);
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49 }
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50 {
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51 close (99);
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52 errno = 0;
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53 ASSERT (my_dprintf (99, "test") == -1);
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54 ASSERT (errno == EBADF);
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55 }
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56
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57 return 0;
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58 }