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1 : /* Test of <unistd.h> substitute. 2 : Copyright (C) 2007, 2009-2020 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>, 2007. */ 18 : 19 : #include <config.h> 20 : 21 : #include <unistd.h> 22 : 23 : #include "verify.h" 24 : 25 : /* Check that NULL can be passed through varargs as a pointer type, 26 : per POSIX 2008. */ 27 : verify (sizeof NULL == sizeof (void *)); 28 : 29 : /* Check that the various SEEK_* macros are defined. */ 30 : int sk[] = { SEEK_CUR, SEEK_END, SEEK_SET }; 31 : 32 : /* Check that the various *_FILENO macros are defined. */ 33 : #if ! (defined STDIN_FILENO \ 34 : && (STDIN_FILENO + STDOUT_FILENO + STDERR_FILENO == 3)) 35 : missing or broken *_FILENO macros 36 : #endif 37 : 38 : /* Check that the types are all defined. */ 39 : size_t t1; 40 : ssize_t t2; 41 : #ifdef TODO /* Not implemented in gnulib yet */ 42 : uid_t t3; 43 : gid_t t4; 44 : #endif 45 : off_t t5; 46 : pid_t t6; 47 : #ifdef TODO 48 : useconds_t t7; 49 : intptr_t t8; 50 : #endif 51 : 52 : int 53 1 : main (void) 54 : { 55 1 : return 0; 56 : }