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glibc  2.9
sigsetops.h
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00001 /* Copyright (C) 1991, 1995, 1996 Free Software Foundation, Inc.
00002    This file is part of the GNU C Library.
00003 
00004    The GNU C Library is free software; you can redistribute it and/or
00005    modify it under the terms of the GNU Lesser General Public
00006    License as published by the Free Software Foundation; either
00007    version 2.1 of the License, or (at your option) any later version.
00008 
00009    The GNU C Library is distributed in the hope that it will be useful,
00010    but WITHOUT ANY WARRANTY; without even the implied warranty of
00011    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012    Lesser General Public License for more details.
00013 
00014    You should have received a copy of the GNU Lesser General Public
00015    License along with the GNU C Library; if not, write to the Free
00016    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00017    02111-1307 USA.  */
00018 
00019 /* Definitions relevant to functions that operate on `sigset_t's.  */
00020 
00021 #include <errno.h>
00022 #include <signal.h>
00023 #include <string.h>
00024 
00025 #define       BITS          (_NSIG - 1)
00026 #define       ELT(signo)    (((signo) - 1) / BITS)
00027 #define       MASK(signo)   (1 << (((signo) - 1) % BITS))
00028 
00029 #undef sigemptyset
00030 #undef sigfillset
00031 #undef sigaddset
00032 #undef sigdelset
00033 #undef sigismember