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| -rw-r--r-- | misc/bits/error.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/misc/bits/error.h b/misc/bits/error.h new file mode 100644 index 0000000000..7089768c3b --- /dev/null +++ b/misc/bits/error.h @@ -0,0 +1,72 @@ +/* Specializations for error functions. + Copyright (C) 2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _ERROR_H +# error "Never include <bits/error2.h> directly; use <error.h> instead." +#endif + + +extern void __REDIRECT (__error_alias, (int __status, int __errnum, + const char *__format, ...), + error) + __attribute__ ((__format__ (__printf__, 3, 4))); +extern void __REDIRECT (__error_noreturn, (int __status, int __errnum, + const char *__format, ...), + error) + __attribute__ ((__noreturn__, __format__ (__printf__, 3, 4))); + + +/* If we know the function will never return make sure the compiler + realizes that, too. */ +__extern_always_inline void +error (int __status, int __errnum, const char *__format, ...) +{ + if (__builtin_constant_p (__status) && __status != 0) + __error_noreturn (__status, __errnum, __format, __va_arg_pack ()); + else + __error_alias (__status, __errnum, __format, __va_arg_pack ()); +} + + +extern void __REDIRECT (__error_at_line_alias, (int __status, int __errnum, + const char *__fname, + unsigned int __line, + const char *__format, ...), + error_at_line) + __attribute__ ((__format__ (__printf__, 5, 6))); +extern void __REDIRECT (__error_at_line_noreturn, (int __status, int __errnum, + const char *__fname, + unsigned int __line, + const char *__format, ...), + error_at_line) + __attribute__ ((__noreturn__, __format__ (__printf__, 5, 6))); + + +/* If we know the function will never return make sure the compiler + realizes that, too. */ +__extern_always_inline void +error_at_line (int __status, int __errnum, const char *__format, ...) +{ + if (__builtin_constant_p (__status) && __status != 0) + __error_at_line_noreturn (__status, __errnum, __fname, __line, __format, + __va_arg_pack ()); + else + __error_at_line_alias (__status, __errnum, __fname, __line, + __format, __va_arg_pack ()); +} |