/* Test FD* macros. Copyright (C) 1997 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Robert Bihlmeyer <robbe@orcus.priv.at>. 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, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ #include <stdio.h> #include <sys/types.h> int main (void) { int retval = 0; int i; fd_set set; FD_ZERO (&set); for (i=0; i < FD_SETSIZE; ++i) { printf ("%d => check:", i); if (FD_ISSET (i, &set) == 0) fputs ("ok", stdout); else { fputs ("nok", stdout); retval = 1; } fputs (", set", stdout); FD_SET (i, &set); fputs (", check:", stdout); if (FD_ISSET (i, &set)) fputs ("ok", stdout); else { fputs ("nok", stdout); retval = 1; } fputs (", clear", stdout); FD_CLR (i, &set); fputs (", check:", stdout); if (FD_ISSET (i, &set) == 0) puts ("ok"); else { puts ("nok"); retval = 1; } } return retval; }