modernc.org/cc@v1.0.1/v2/headers/linux_arm/usr/include/errno.h (about)

     1  /* Copyright (C) 1991-2016 Free Software Foundation, Inc.
     2     This file is part of the GNU C Library.
     3  
     4     The GNU C Library is free software; you can redistribute it and/or
     5     modify it under the terms of the GNU Lesser General Public
     6     License as published by the Free Software Foundation; either
     7     version 2.1 of the License, or (at your option) any later version.
     8  
     9     The GNU C Library is distributed in the hope that it will be useful,
    10     but WITHOUT ANY WARRANTY; without even the implied warranty of
    11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    12     Lesser General Public License for more details.
    13  
    14     You should have received a copy of the GNU Lesser General Public
    15     License along with the GNU C Library; if not, see
    16     <http://www.gnu.org/licenses/>.  */
    17  
    18  /*
    19   *	ISO C99 Standard: 7.5 Errors	<errno.h>
    20   */
    21  
    22  #ifndef	_ERRNO_H
    23  
    24  /* The includer defined __need_Emath if he wants only the definitions
    25     of EDOM and ERANGE, and not everything else.  */
    26  #ifndef	__need_Emath
    27  #define _ERRNO_H	1
    28  #include <features.h>
    29  #endif
    30  
    31  __BEGIN_DECLS
    32  /* Get the error number constants from the system-specific file.
    33     This file will test __need_Emath and _ERRNO_H.  */
    34  #include <bits/errno.h>
    35  #undef	__need_Emath
    36  #ifdef	_ERRNO_H
    37  /* Declare the `errno' variable, unless it's defined as a macro by
    38     bits/errno.h.  This is the case in GNU, where it is a per-thread
    39     variable.  This redeclaration using the macro still works, but it
    40     will be a function declaration without a prototype and may trigger
    41     a -Wstrict-prototypes warning.  */
    42  #ifndef	errno
    43  extern int errno;
    44  #endif
    45  
    46  #ifdef __USE_GNU
    47  
    48  /* The full and simple forms of the name with which the program was
    49     invoked.  These variables are set up automatically at startup based on
    50     the value of ARGV[0] (this works only if you use GNU ld).  */
    51  extern char *program_invocation_name, *program_invocation_short_name;
    52  #endif				/* __USE_GNU */
    53  #endif				/* _ERRNO_H */
    54  
    55  __END_DECLS
    56  #endif				/* _ERRNO_H */
    57  /* The Hurd <bits/errno.h> defines `error_t' as an enumerated type so
    58     that printing `error_t' values in the debugger shows the names.  We
    59     might need this definition sometimes even if this file was included
    60     before.  */
    61  #if defined __USE_GNU || defined __need_error_t
    62  #ifndef __error_t_defined
    63  typedef int error_t;
    64  #define __error_t_defined	1
    65  #endif
    66  #undef __need_error_t
    67  #endif