/* Copyright (C) 1991-2018 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see . */ #include #include #include #include int main (void) { char *dir; /* Let this program be used for debugging. */ mtrace (); dir = getcwd ((char *) NULL, 0); if (dir == NULL) perror ("getcwd"); else { puts (dir); free (dir); } return (dir == NULL ? EXIT_FAILURE : EXIT_SUCCESS); }