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phoenix |
//==========================================================================
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//
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// pure.cxx
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//
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// g++ support
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//
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//==========================================================================
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//####ECOSGPLCOPYRIGHTBEGIN####
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// -------------------------------------------
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// This file is part of eCos, the Embedded Configurable Operating System.
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// Copyright (C) 2003 Bart Veer
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//
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// eCos is free software; you can redistribute it and/or modify it under
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// the terms of the GNU General Public License as published by the Free
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// Software Foundation; either version 2 or (at your option) any later version.
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//
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// eCos is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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// for more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with eCos; if not, write to the Free Software Foundation, Inc.,
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// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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//
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// As a special exception, if other files instantiate templates or use macros
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// or inline functions from this file, or you compile this file and link it
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// with other works to produce a work based on this file, this file does not
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// by itself cause the resulting work to be covered by the GNU General Public
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// License. However the source code for this file must still be made available
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// in accordance with section (3) of the GNU General Public License.
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//
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// This exception does not invalidate any other reasons why a work based on
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// this file might be covered by the GNU General Public License.
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// -------------------------------------------
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//####ECOSGPLCOPYRIGHTEND####
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//==========================================================================
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//#####DESCRIPTIONBEGIN####
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//
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// Author(s): bartv
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// Date: 2003-03-27
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// Purpose: provide a __cxa_pure_virtual() function
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// Description: g++ v3.x generates references to a function __cxa_pure_virtual()
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// whenever the code contains pure virtual functions. This is a
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// placeholder used while constructing an object, and the function
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// should never actually get called. There is a default
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// implementation in libsupc++ but that has dependencies on I/O
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// and so on, unwanted in a minimal eCos environment. Instead we
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// want a minimal __cxa_pure_virtual().
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//
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//####DESCRIPTIONEND####
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//
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//==========================================================================
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#include <pkgconf/infra.h>
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#include <cyg/infra/cyg_ass.h>
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extern "C" void
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__cxa_pure_virtual(void)
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{
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CYG_FAIL("attempt to use a virtual function before object has been constructed");
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for ( ; ; );
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}
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// EOF pure.cxx
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