errno.h

   1 /* Copyright (C) 1991, 1992, 1993, 1994 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 Library General Public License as
   6 published by the Free Software Foundation; either version 2 of the
   7 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 Library General Public License for more details.
  13
  14 You should have received a copy of the GNU Library General Public
  15 License along with the GNU C Library; see the file COPYING.LIB.  If
  16 not, write to the, 1992 Free Software Foundation, Inc., 675 Mass Ave,
  17 Cambridge, MA 02139, USA.  */
  18
  19 /*
  20  *      ANSI Standard: 4.1.3 Errors     <errno.h>
  21  */
  22
  23 #ifndef _ERRNO_H
  24
  25 #define _ERRNO_H        1
  26 #include <features.h>
  27
  28 __BEGIN_DECLS
  29
  30 /* Get the error number constants.  */
  31 #include <errnos.h>
  32
  33 /* Declare the `errno' variable.  */
  34 extern int errno;
  35
  36 #ifdef __USE_GNU
  37 /* The full and simple forms of the name with which the program was
  38    invoked.  These variables are set up automatically at startup based on
  39    the value of ARGV[0] (this works only if you use GNU ld).  */
  40 extern char *program_invocation_name, *program_invocation_short_name;
  41 #endif
  42
  43 __END_DECLS
  44
  45 #endif /* errno.h       */