text: /* 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 */
  