1 /* Test of <unistd.h> substitute. 2 Copyright (C) 2007, 2009-2021 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 <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 main (void) /* */ 54 { 55 return 0; 56 }