1 /* Definitions of macros to access `dev_t' values. 2 Copyright (C) 1996-2022 Free Software Foundation, Inc. 3 This file is part of the GNU C Library. 4 5 The GNU C Library is free software; you can redistribute it and/or 6 modify it under the terms of the GNU Lesser General Public 7 License as published by the Free Software Foundation; either 8 version 2.1 of the License, or (at your option) any later version. 9 10 The GNU C Library is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 Lesser General Public License for more details. 14 15 You should have received a copy of the GNU Lesser General Public 16 License along with the GNU C Library; if not, see 17 <https://www.gnu.org/licenses/>. */ 18 19 #ifndef _SYS_SYSMACROS_H 20 #define _SYS_SYSMACROS_H 1 21 22 #include <features.h> 23 #include <bits/types.h> 24 #include <bits/sysmacros.h> 25 26 #define __SYSMACROS_DECL_TEMPL(rtype, name, proto) \ 27 extern rtype gnu_dev_##name proto __THROW __attribute_const__; 28 29 #define __SYSMACROS_IMPL_TEMPL(rtype, name, proto) \ 30 __extension__ __extern_inline __attribute_const__ rtype \ 31 __NTH (gnu_dev_##name proto) 32 33 __BEGIN_DECLS 34 35 __SYSMACROS_DECLARE_MAJOR (__SYSMACROS_DECL_TEMPL) 36 __SYSMACROS_DECLARE_MINOR (__SYSMACROS_DECL_TEMPL) 37 __SYSMACROS_DECLARE_MAKEDEV (__SYSMACROS_DECL_TEMPL) 38 39 #ifdef __USE_EXTERN_INLINES 40 41 __SYSMACROS_DEFINE_MAJOR (__SYSMACROS_IMPL_TEMPL) 42 __SYSMACROS_DEFINE_MINOR (__SYSMACROS_IMPL_TEMPL) 43 __SYSMACROS_DEFINE_MAKEDEV (__SYSMACROS_IMPL_TEMPL) 44 45 #endif 46 47 __END_DECLS 48 49 #ifndef __SYSMACROS_NEED_IMPLEMENTATION 50 # undef __SYSMACROS_DECL_TEMPL 51 # undef __SYSMACROS_IMPL_TEMPL 52 # undef __SYSMACROS_DECLARE_MAJOR 53 # undef __SYSMACROS_DECLARE_MINOR 54 # undef __SYSMACROS_DECLARE_MAKEDEV 55 # undef __SYSMACROS_DEFINE_MAJOR 56 # undef __SYSMACROS_DEFINE_MINOR 57 # undef __SYSMACROS_DEFINE_MAKEDEV 58 #endif 59 60 #define major(dev) gnu_dev_major (dev) 61 #define minor(dev) gnu_dev_minor (dev) 62 #define makedev(maj, min) gnu_dev_makedev (maj, min) 63 64 #endif /* sys/sysmacros.h */ 65