| 1 | /* Test of <sys/select.h> substitute.
|
|---|
| 2 | Copyright (C) 2007-2021 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>, 2007. */
|
|---|
| 18 |
|
|---|
| 19 | #include <config.h>
|
|---|
| 20 |
|
|---|
| 21 | #include <sys/select.h>
|
|---|
| 22 |
|
|---|
| 23 | #include "signature.h"
|
|---|
| 24 |
|
|---|
| 25 | /* The following may be macros without underlying functions, so only
|
|---|
| 26 | check signature if they are not macros. */
|
|---|
| 27 | #ifndef FD_CLR
|
|---|
| 28 | SIGNATURE_CHECK (FD_CLR, void, (int, fd_set *));
|
|---|
| 29 | #endif
|
|---|
| 30 | #ifndef FD_ISSET
|
|---|
| 31 | SIGNATURE_CHECK (FD_ISSET, void, (int, fd_set *));
|
|---|
| 32 | #endif
|
|---|
| 33 | #ifndef FD_SET
|
|---|
| 34 | SIGNATURE_CHECK (FD_SET, int, (int, fd_set *));
|
|---|
| 35 | #endif
|
|---|
| 36 | #ifndef FD_ZERO
|
|---|
| 37 | SIGNATURE_CHECK (FD_ZERO, void, (fd_set *));
|
|---|
| 38 | #endif
|
|---|
| 39 |
|
|---|
| 40 | /* Check that the 'struct timeval' type is defined. */
|
|---|
| 41 | struct timeval a;
|
|---|
| 42 |
|
|---|
| 43 | /* Check that a.tv_sec is wide enough to hold a time_t, ignoring
|
|---|
| 44 | signedness issues. */
|
|---|
| 45 | typedef int verify_tv_sec_type[sizeof (time_t) <= sizeof (a.tv_sec) ? 1 : -1];
|
|---|
| 46 |
|
|---|
| 47 | /* Check that sigset_t is defined. */
|
|---|
| 48 | sigset_t t2;
|
|---|
| 49 |
|
|---|
| 50 | int
|
|---|
| 51 | main (void)
|
|---|
| 52 | {
|
|---|
| 53 | /* Check that FD_ZERO can be used. This should not yield a warning
|
|---|
| 54 | such as "warning: implicit declaration of function 'memset'". */
|
|---|
| 55 | fd_set fds;
|
|---|
| 56 | FD_ZERO (&fds);
|
|---|
| 57 |
|
|---|
| 58 | return 0;
|
|---|
| 59 | }
|
|---|