150477Speter/* GDB-friendly replacement for <assert.h>.
21598Srgrimes   Copyright 2000, 2001 Free Software Foundation, Inc.
358284Speter
442181Sbde   This file is part of GDB.
51598Srgrimes
661744Sobrien   This program is free software; you can redistribute it and/or modify
761744Sobrien   it under the terms of the GNU General Public License as published by
861744Sobrien   the Free Software Foundation; either version 2 of the License, or
961744Sobrien   (at your option) any later version.
1061744Sobrien
1127356Sjkh   This program is distributed in the hope that it will be useful,
1227356Sjkh   but WITHOUT ANY WARRANTY; without even the implied warranty of
131598Srgrimes   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14   GNU General Public License for more details.
15
16   You should have received a copy of the GNU General Public License
17   along with this program; if not, write to the Free Software
18   Foundation, Inc., 59 Temple Place - Suite 330,
19   Boston, MA 02111-1307, USA.  */
20
21#ifndef GDB_ASSERT_H
22#define GDB_ASSERT_H
23
24/* PRAGMATICS: "gdb_assert.h":gdb_assert() is a lower case (rather
25   than upper case) macro since that provides the closest fit to the
26   existing lower case macro <assert.h>:assert() that it is
27   replacing. */
28
29#define gdb_assert(expr)                                                      \
30  ((void) ((expr) ? 0 :                                                       \
31	   (gdb_assert_fail (#expr, __FILE__, __LINE__, ASSERT_FUNCTION), 0)))
32
33/* Version 2.4 and later of GCC define a magical variable `__PRETTY_FUNCTION__'
34   which contains the name of the function currently being defined.
35   This is broken in G++ before version 2.6.
36   C9x has a similar variable called __func__, but prefer the GCC one since
37   it demangles C++ function names.  */
38#if (GCC_VERSION >= 2004)
39#define ASSERT_FUNCTION		__PRETTY_FUNCTION__
40#else
41#if defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L
42#define ASSERT_FUNCTION		__func__
43#endif
44#endif
45
46/* This prints an "Assertion failed" message, aksing the user if they
47   want to continue, dump core, or just exit.  */
48#if defined (ASSERT_FUNCTION)
49#define gdb_assert_fail(assertion, file, line, function)                      \
50  internal_error (file, line, "%s: Assertion `%s' failed.",                   \
51		  function, assertion)
52#else
53#define gdb_assert_fail(assertion, file, line, function)                      \
54  internal_error (file, line, "Assertion `%s' failed.",                       \
55		  assertion)
56#endif
57
58#endif /* gdb_assert.h */
59