about summary refs log tree commit diff
path: root/assert/assert.c
blob: 0db87954038b7b3b878ce055f60c7e8b2d6f3dfd (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
/* Copyright (C) 1991, 1994, 1995, 1996, 1998 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.  */

#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <sysdep.h>
#include <libintl.h>


const char *__assert_program_name;

#ifdef USE_IN_LIBIO
# include <libio/iolibio.h>
# define fflush(s) _IO_fflush (s)
#endif

/* This function, when passed a string containing an asserted
   expression, a filename, and a line number, prints a message
   on the standard error stream of the form:
   	a.c:10: foobar: Assertion `a == b' failed.
   It then aborts program execution via a call to `abort'.  */

#ifdef FATAL_PREPARE_INCLUDE
# include FATAL_PREPARE_INCLUDE
#endif

void
__assert_fail (const char *assertion, const char *file, unsigned int line,
	       const char *function)
{
#ifdef FATAL_PREPARE
  FATAL_PREPARE;
#endif

  /* Print the message.  */
  (void) fprintf (stderr, _("%s%s%s:%u: %s%sAssertion `%s' failed.\n"),
		  __assert_program_name ? __assert_program_name : "",
		  __assert_program_name ? ": " : "",
		  file, line,
		  function ? function : "", function ? ": " : "",
		  assertion);
  (void) fflush (stderr);

  abort ();
}

#ifdef	HAVE_GNU_LD

#include <string.h>

static void
set_progname (int argc, char **argv, char **envp)
{
  char *p;

  if (argv && argv[0])
    {
      p = strrchr (argv[0], '/');
      if (p == NULL)
	__assert_program_name = argv[0];
      else
	__assert_program_name = p + 1;
    }

  (void) &set_progname;		/* Avoid "defined but not used" warning.  */
}

text_set_element (__libc_subinit, set_progname);

#endif