gdb/gdb_assert.h

   1 /* GDB-friendly replacement for <assert.h>.
   2    Copyright 2000 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., 59 Temple Place - Suite 330,
  19    Boston, MA 02111-1307, USA.  */
  20
  21 #ifndef GDB_ASSERT_H
  22 #define GDB_ASSERT_H
  23
  24 #define gdb_assert(expr)                                                      \
  25   ((void) ((expr) ? 0 :                                                       \
  26            (gdb_assert_fail (#expr, __FILE__, __LINE__, ASSERT_FUNCTION), 0)))
  27
  28 /* Version 2.4 and later of GCC define a magical variable `__PRETTY_FUNCTION__'
  29    which contains the name of the function currently being defined.
  30    This is broken in G++ before version 2.6.
  31    C9x has a similar variable called __func__, but prefer the GCC one since
  32    it demangles C++ function names.  */
  33 #if (GCC_VERSION >= 2004)
  34 #define ASSERT_FUNCTION         __PRETTY_FUNCTION__
  35 #else
  36 #if defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L
  37 #define ASSERT_FUNCTION         __func__
  38 #else
  39 #define ASSERT_FUNCTION         ((const char *) 0)
  40 #endif
  41 #endif
  42
  43 /* This prints an "Assertion failed" message, aksing the user if they
  44    want to continue, dump core, or just exit.  */
  45 #define gdb_assert_fail(assertion, file, line, function)                      \
  46   internal_error ("%s:%u: %s%sAssertion `%s' failed.",                        \
  47                   file, line,                                                 \
  48                   function ? function : "", function ? ": " : "",             \
  49                   assertion)
  50
  51 #endif /* gdb_assert.h */