1 /* Test of <stdlib.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 <stdlib.h> 22 23 #include "verify.h" 24 25 /* Check that EXIT_SUCCESS is 0, per POSIX. */ 26 static int exitcode = EXIT_SUCCESS; 27 #if EXIT_SUCCESS 28 "oops" 29 #endif 30 31 /* Check for GNU value (not guaranteed by POSIX, but is guaranteed by 32 gnulib). */ 33 #if EXIT_FAILURE != 1 34 "oops" 35 #endif 36 37 /* Check that NULL can be passed through varargs as a pointer type, 38 per POSIX 2008. */ 39 verify (sizeof NULL == sizeof (void *)); 40 41 #if GNULIB_TEST_SYSTEM_POSIX 42 # include "test-sys_wait.h" 43 #else 44 # define test_sys_wait_macros() 0 45 #endif 46 47 int 48 main (void) /* */ 49 { 50 if (test_sys_wait_macros ()) 51 return 1; 52 53 return exitcode; 54 }