Line data    Source code

       1             : /* Specializations for error functions.
       2             :    Copyright (C) 2007-2016 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             :    <http://www.gnu.org/licenses/>.  */
      18             : 
      19             : #ifndef _ERROR_H
      20             : # error "Never include <bits/error.h> directly; use <error.h> instead."
      21             : #endif
      22             : 
      23             : 
      24             : extern void __REDIRECT (__error_alias, (int __status, int __errnum,
      25             :                                         const char *__format, ...),
      26             :                         error)
      27             :   __attribute__ ((__format__ (__printf__, 3, 4)));
      28             : extern void __REDIRECT (__error_noreturn, (int __status, int __errnum,
      29             :                                            const char *__format, ...),
      30             :                         error)
      31             :   __attribute__ ((__noreturn__, __format__ (__printf__, 3, 4)));
      32             : 
      33             : 
      34             : /* If we know the function will never return make sure the compiler
      35             :    realizes that, too.  */
      36             : __extern_always_inline void
      37             : error (int __status, int __errnum, const char *__format, ...)
      38             : {
      39           0 :   if (__builtin_constant_p (__status) && __status != 0)
      40           0 :     __error_noreturn (__status, __errnum, __format, __va_arg_pack ());
      41             :   else
      42          12 :     __error_alias (__status, __errnum, __format, __va_arg_pack ());
      43             : }
      44             : 
      45             : 
      46             : extern void __REDIRECT (__error_at_line_alias, (int __status, int __errnum,
      47             :                                                 const char *__fname,
      48             :                                                 unsigned int __line,
      49             :                                                 const char *__format, ...),
      50             :                         error_at_line)
      51             :   __attribute__ ((__format__ (__printf__, 5, 6)));
      52             : extern void __REDIRECT (__error_at_line_noreturn, (int __status, int __errnum,
      53             :                                                    const char *__fname,
      54             :                                                    unsigned int __line,
      55             :                                                    const char *__format,
      56             :                                                    ...),
      57             :                         error_at_line)
      58             :   __attribute__ ((__noreturn__, __format__ (__printf__, 5, 6)));
      59             : 
      60             : 
      61             : /* If we know the function will never return make sure the compiler
      62             :    realizes that, too.  */
      63             : __extern_always_inline void
      64             : error_at_line (int __status, int __errnum, const char *__fname,
      65             :                unsigned int __line, const char *__format, ...)
      66             : {
      67             :   if (__builtin_constant_p (__status) && __status != 0)
      68             :     __error_at_line_noreturn (__status, __errnum, __fname, __line, __format,
      69             :                               __va_arg_pack ());
      70             :   else
      71             :     __error_at_line_alias (__status, __errnum, __fname, __line,
      72             :                            __format, __va_arg_pack ());
      73             : }