assert/assert-perr.c

   1 /* Copyright (C) 1994, 1995 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 Free Software Foundation, Inc., 675 Mass Ave,
  17 Cambridge, MA 02139, USA.  */
  18
  19 #include <assert.h>
  20 #include <stdio.h>
  21 #include <string.h>
  22 #include <sysdep.h>
  23
  24
  25 extern const char *__assert_program_name; /* In assert.c.  */
  26
  27 /* This function, when passed an error number, a filename, and a line
  28    number, prints a message on the standard error stream of the form:
  29         a.c:10: foobar: Unexpected error: Computer bought the farm
  30    It then aborts program execution via a call to `abort'.  */
  31
  32 #ifdef FATAL_PREPARE_INCLUDE
  33 #include FATAL_PREPARE_INCLUDE
  34 #endif
  35
  36 void
  37 __assert_perror_fail (int errnum,
  38                       const char *file, unsigned int line,
  39                       const char *function)
  40 {
  41 #ifdef FATAL_PREPARE
  42   FATAL_PREPARE;
  43 #endif
  44
  45   /* Print the message.  */
  46   (void) fprintf (stderr, _("%s%s%s:%u: %s%sUnexpected error: %s.\n"),
  47                   __assert_program_name ? __assert_program_name : "",
  48                   __assert_program_name ? ": " : "",
  49                   file, line,
  50                   function ? function : "", function ? ": " : "",
  51                   strerror (errnum));
  52   (void) fflush (stderr);
  53
  54   abort ();
  55 }