Line data Source code
1 : /* Test of getdtablesize() function.
2 : Copyright (C) 2008-2020 Free Software Foundation, Inc.
3 :
4 : This program is free software: you can redistribute it and/or modify
5 : it under the terms of the GNU General Public License as published by
6 : the Free Software Foundation; either version 3 of the License, or
7 : (at your option) any later version.
8 :
9 : This program is distributed in the hope that it will be useful,
10 : but WITHOUT ANY WARRANTY; without even the implied warranty of
11 : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 : GNU General Public License for more details.
13 :
14 : You should have received a copy of the GNU General Public License
15 : along with this program. If not, see <https://www.gnu.org/licenses/>. */
16 :
17 : /* Written by Bruno Haible <bruno@clisp.org>, 2008. */
18 :
19 : #include <config.h>
20 :
21 : #include <unistd.h>
22 :
23 : #include "signature.h"
24 : SIGNATURE_CHECK (getdtablesize, int, (void));
25 :
26 : #include "macros.h"
27 :
28 : int
29 1 : main (int argc, char *argv[])
30 : {
31 1 : ASSERT (getdtablesize () >= 3);
32 1 : ASSERT (dup2 (0, getdtablesize() - 1) == getdtablesize () - 1);
33 1 : ASSERT (dup2 (0, getdtablesize()) == -1);
34 :
35 1 : return 0;
36 : }
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