]>
git.ipfire.org Git - thirdparty/glibc.git/blob - assert/assert.c
1 /* Copyright (C) 1991,1994-1996,1998,2001,2002 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
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.
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.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, write to the Free
16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
27 extern const char *__progname
;
31 # include <libio/iolibio.h>
32 # define fflush(s) INTUSE(_IO_fflush) (s)
35 /* This function, when passed a string containing an asserted
36 expression, a filename, and a line number, prints a message
37 on the standard error stream of the form:
38 a.c:10: foobar: Assertion `a == b' failed.
39 It then aborts program execution via a call to `abort'. */
41 #ifdef FATAL_PREPARE_INCLUDE
42 # include FATAL_PREPARE_INCLUDE
46 __assert_fail (const char *assertion
, const char *file
, unsigned int line
,
55 if (__asprintf (&buf
, _("%s%s%s:%u: %s%sAssertion `%s' failed.\n"),
56 __progname
, __progname
[0] ? ": " : "",
58 function
? function
: "", function
? ": " : "",
61 /* Print the message. */
63 if (_IO_fwide (stderr
, 0) > 0)
64 (void) __fwprintf (stderr
, L
"%s", buf
);
67 (void) fputs (buf
, stderr
);
69 (void) fflush (stderr
);
71 /* We have to free the buffer since the application might catch the
77 /* At least print a minimal message. */
78 static const char errstr
[] = "Unexpected error.\n";
79 __libc_write (STDERR_FILENO
, errstr
, sizeof (errstr
) - 1);
84 libc_hidden_def(__assert_fail
)