gcc/cp/exception.cc

// Functions for Exception Support for -*- C++ -*-
// Copyright (C) 1994, 1995, 1996 Free Software Foundation

// This file is part of GNU CC.

// GNU CC 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 2, or (at your option)
// any later version.

// GNU CC 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 GNU CC; see the file COPYING.  If not, write to
// the Free Software Foundation, 59 Temple Place - Suite 330,
// Boston, MA 02111-1307, USA. 

// As a special exception, if you link this library with other files,
// some of which are compiled with GCC, to produce an executable,
// this library does not by itself cause the resulting executable
// to be covered by the GNU General Public License.
// This exception does not however invalidate any other reasons why
// the executable file might be covered by the GNU General Public License.

#pragma implementation "exception"

#include "typeinfo"
#include "exception"

/* Define terminate, unexpected, set_terminate, set_unexpected as
   well as the default terminate func and default unexpected func.  */

extern terminate_handler __terminate_func;

void
terminate ()
{
  __terminate_func ();
}

void
__default_unexpected ()
{
  terminate ();
}

static unexpected_handler __unexpected_func = __default_unexpected;

terminate_handler
set_terminate (terminate_handler func)
{
  terminate_handler old = __terminate_func;

  __terminate_func = func;
  return old;
}

unexpected_handler
set_unexpected (unexpected_handler func)
{
  unexpected_handler old = __unexpected_func;

  __unexpected_func = func;
  return old;
}

void
unexpected ()
{
  __unexpected_func ();
}

extern "C" void
__throw_bad_cast (void)
{
  throw bad_cast ();
}

extern "C" void
__throw_bad_typeid (void)
{
  throw bad_typeid ();
}

extern "C" void
__throw_bad_exception (void)
{
  throw bad_exception ();
}

bool
uncaught_exception ()
{
  extern void *__eh_type;
  extern bool __eh_in_catch;
  return __eh_type && ! __eh_in_catch;
}

const char * exception::
what () const
{
  return typeid (*this).name ();
}