gdb/gdb_assert.h

   1 /* GDB-friendly replacement for <assert.h>.
   2    Copyright (C) 2000, 2001, 2007 Free Software Foundation, Inc.
   3
   4    This file is part of GDB.
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    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., 51 Franklin Street, Fifth Floor,
  19    Boston, MA 02110-1301, 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 */