| 1 | /* Test of <unistd.h> substitute. | 
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| 2 | Copyright (C) 2007, 2009-2022 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 <https://www.gnu.org/licenses/>.  */ | 
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| 16 |  | 
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| 17 | /* Written by Bruno Haible <bruno@clisp.org>, 2007.  */ | 
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| 18 |  | 
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| 19 | #include <config.h> | 
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| 20 |  | 
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| 21 | #include <unistd.h> | 
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| 22 |  | 
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| 23 | /* Check that NULL can be passed through varargs as a pointer type, | 
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| 24 | per POSIX 2008.  */ | 
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| 25 | static_assert (sizeof NULL == sizeof (void *)); | 
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| 26 |  | 
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| 27 | /* Check that the various SEEK_* macros are defined.  */ | 
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| 28 | int sk[] = { SEEK_CUR, SEEK_END, SEEK_SET }; | 
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| 29 |  | 
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| 30 | /* Check that the various *_FILENO macros are defined.  */ | 
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| 31 | #if ! (defined STDIN_FILENO                                     \ | 
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| 32 | && (STDIN_FILENO + STDOUT_FILENO + STDERR_FILENO == 3)) | 
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| 33 | missing or broken *_FILENO macros | 
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| 34 | #endif | 
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| 35 |  | 
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| 36 | /* Check that the types are all defined.  */ | 
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| 37 | size_t t1; | 
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| 38 | ssize_t t2; | 
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| 39 | #ifdef TODO /* Not implemented in gnulib yet */ | 
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| 40 | uid_t t3; | 
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| 41 | gid_t t4; | 
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| 42 | #endif | 
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| 43 | off_t t5; | 
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| 44 | pid_t t6; | 
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| 45 | #ifdef TODO | 
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| 46 | useconds_t t7; | 
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| 47 | intptr_t t8; | 
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| 48 | #endif | 
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| 49 |  | 
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| 50 | int | 
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| 51 | main (void) | 
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| 52 | { | 
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| 53 | return 0; | 
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| 54 | } | 
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