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/* GDB-friendly replacement for <assert.h>.
Copyright (C) 2000-2001, 2007-2012 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef GDB_ASSERT_H
#define GDB_ASSERT_H
/* A static assertion. This will cause a compile-time error if EXPR,
which must be a compile-time constant, is false. */
#define static_assert(expr) \
extern int never_defined_just_used_for_checking[(expr) ? 1 : -1]
/* PRAGMATICS: "gdb_assert.h":gdb_assert() is a lower case (rather
than upper case) macro since that provides the closest fit to the
existing lower case macro <assert.h>:assert() that it is
replacing. */
#define gdb_assert(expr) \
((void) ((expr) ? 0 : \
(gdb_assert_fail (#expr, __FILE__, __LINE__, ASSERT_FUNCTION), 0)))
/* Version 2.4 and later of GCC define a magical variable `__PRETTY_FUNCTION__'
which contains the name of the function currently being defined.
This is broken in G++ before version 2.6.
C9x has a similar variable called __func__, but prefer the GCC one since
it demangles C++ function names. */
#if (GCC_VERSION >= 2004)
#define ASSERT_FUNCTION __PRETTY_FUNCTION__
#else
#if defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L
#define ASSERT_FUNCTION __func__
#endif
#endif
/* This prints an "Assertion failed" message, asking the user if they
want to continue, dump core, or just exit. */
#if defined (ASSERT_FUNCTION)
#define gdb_assert_fail(assertion, file, line, function) \
internal_error (file, line, _("%s: Assertion `%s' failed."), \
function, assertion)
#else
#define gdb_assert_fail(assertion, file, line, function) \
internal_error (file, line, _("Assertion `%s' failed."), \
assertion)
#endif
/* The canonical form of gdb_assert (0).
MESSAGE is a string to include in the error message. */
#if defined (ASSERT_FUNCTION)
#define gdb_assert_not_reached(message) \
internal_error (__FILE__, __LINE__, "%s: %s", ASSERT_FUNCTION, _(message))
#else
#define gdb_assert_not_reached(message) \
internal_error (__FILE__, __LINE__, _(message))
#endif
#endif /* gdb_assert.h */
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