misc/bits/error-ldbl.h

   1 /* Redirections for error.h functions for -mlong-double-64.
   2    Copyright (C) 2019-2023 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 _ERROR_H
  20 # error "Never include <bits/error-ldbl.h> directly; use <error.h> instead."
  21 #endif
  22
  23 #if defined __extern_always_inline && defined __va_arg_pack
  24 extern void __REDIRECT_LDBL (__error_alias, (int __status, int __errnum,
  25                              const char *__format, ...), error)
  26   __attribute__ ((__format__ (__printf__, 3, 4)));
  27 extern void __REDIRECT_LDBL (__error_noreturn, (int __status, int __errnum,
  28                              const char *__format, ...), error)
  29   __attribute__ ((__noreturn__, __format__ (__printf__, 3, 4)));
  30
  31
  32 /* If we know the function will never return make sure the compiler
  33    realizes that, too.  */
  34 __extern_always_inline void
  35 error (int __status, int __errnum, const char *__format, ...)
  36 {
  37   if (__builtin_constant_p (__status) && __status != 0)
  38     __error_noreturn (__status, __errnum, __format, __va_arg_pack ());
  39   else
  40     __error_alias (__status, __errnum, __format, __va_arg_pack ());
  41 }
  42
  43
  44 extern void __REDIRECT_LDBL (__error_at_line_alias, (int __status, int __errnum,
  45                              const char *__fname, unsigned int __line,
  46                              const char *__format, ...), error_at_line)
  47   __attribute__ ((__format__ (__printf__, 5, 6)));
  48 extern void __REDIRECT_LDBL (__error_at_line_noreturn, (int __status, int __errnum,
  49                              const char *__fname, unsigned int __line,
  50                              const char *__format, ...), error_at_line)
  51   __attribute__ ((__noreturn__, __format__ (__printf__, 5, 6)));
  52
  53
  54 /* If we know the function will never return make sure the compiler
  55    realizes that, too.  */
  56 __extern_always_inline void
  57 error_at_line (int __status, int __errnum, const char *__fname,
  58                unsigned int __line, const char *__format, ...)
  59 {
  60   if (__builtin_constant_p (__status) && __status != 0)
  61     __error_at_line_noreturn (__status, __errnum, __fname, __line, __format,
  62                               __va_arg_pack ());
  63   else
  64     __error_at_line_alias (__status, __errnum, __fname, __line,
  65                            __format, __va_arg_pack ());
  66 }
  67 #endif
  68 __LDBL_REDIR_DECL (error)
  69 __LDBL_REDIR_DECL (error_at_line)