freebsd-dev/contrib/libstdc++/libsupc++/exception_defines.h

52 lines
1.8 KiB
C++

// -fno-exceptions Support -*- C++ -*-
// Copyright (C) 2001, 2003 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library 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.
// This library 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 library; see the file COPYING. If not, write to the Free
// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
// USA.
// As a special exception, you may use this file as part of a free software
// library without restriction. Specifically, if other files instantiate
// templates or use macros or inline functions from this file, or you compile
// this file and link it with other files to produce an executable, this
// file 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.
//
// ISO C++ 14882: 19.1 Exception classes
//
/** @file exception_defines.h
* This is a Standard C++ Library header.
*/
#ifndef _EXCEPTION_DEFINES_H
#define _EXCEPTION_DEFINES_H 1
#ifndef __EXCEPTIONS
// Iff -fno-exceptions, transform error handling code to work without it.
# define try if (true)
# define catch(X) if (false)
# define __throw_exception_again
#else
// Else proceed normally.
# define __throw_exception_again throw
#endif
#endif