1 /* Specializations for error functions. 2 Copyright (C) 2007 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, write to the Free 17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 18 02111-1307 USA. */ 19 20 #ifndef _ERROR_H 21 # error "Never include <bits/error.h> directly; use <error.h> instead." 22 #endif 23 24 25 extern void __REDIRECT (__error_alias, (int __status, int __errnum, 26 __const char *__format, ...), 27 error) 28 __attribute__ ((__format__ (__printf__, 3, 4))); 29 extern void __REDIRECT (__error_noreturn, (int __status, int __errnum, 30 __const char *__format, ...), 31 error) 32 __attribute__ ((__noreturn__, __format__ (__printf__, 3, 4))); 33 34 35 /* If we know the function will never return make sure the compiler 36 realizes that, too. */ 37 __extern_always_inline void 38 error (int __status, int __errnum, __const char *__format, ...) 39 { 40 if (__builtin_constant_p (__status) && __status != 0) 41 __error_noreturn (__status, __errnum, __format, __va_arg_pack ()); 42 else 43 __error_alias (__status, __errnum, __format, __va_arg_pack ()); 44 } 45 46 47 extern void __REDIRECT (__error_at_line_alias, (int __status, int __errnum, 48 __const char *__fname, 49 unsigned int __line, 50 __const char *__format, ...), 51 error_at_line) 52 __attribute__ ((__format__ (__printf__, 5, 6))); 53 extern void __REDIRECT (__error_at_line_noreturn, (int __status, int __errnum, 54 __const char *__fname, 55 unsigned int __line, 56 __const char *__format, 57 ...), 58 error_at_line) 59 __attribute__ ((__noreturn__, __format__ (__printf__, 5, 6))); 60 61 62 /* If we know the function will never return make sure the compiler 63 realizes that, too. */ 64 __extern_always_inline void 65 error_at_line (int __status, int __errnum, __const char *__fname, 66 unsigned int __line,__const char *__format, ...) 67 { 68 if (__builtin_constant_p (__status) && __status != 0) 69 __error_at_line_noreturn (__status, __errnum, __fname, __line, __format, 70 __va_arg_pack ()); 71 else 72 __error_at_line_alias (__status, __errnum, __fname, __line, 73 __format, __va_arg_pack ()); 74 } 75
