| /* Copyright (C) 1991-2016 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 | 
 |    <http://www.gnu.org/licenses/>.  */ | 
 |  | 
 | /* Definitions relevant to functions that operate on `sigset_t's.  */ | 
 |  | 
 | #include <errno.h> | 
 | #include <signal.h> | 
 | #include <string.h> | 
 |  | 
 | #define	BITS		(_NSIG - 1) | 
 | #define	ELT(signo)	(((signo) - 1) / BITS) | 
 | #define	MASK(signo)	(1 << (((signo) - 1) % BITS)) | 
 |  | 
 | #undef	sigemptyset | 
 | #undef	sigfillset | 
 | #undef	sigaddset | 
 | #undef	sigdelset | 
 | #undef	sigismember |