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      1 // -fno-exceptions Support -*- C++ -*-
      2 
      3 // Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2006, 2007, 2008, 2009
      4 // Free Software Foundation, Inc.
      5 //
      6 // This file is part of the GNU ISO C++ Library.  This library is free
      7 // software; you can redistribute it and/or modify it under the
      8 // terms of the GNU General Public License as published by the
      9 // Free Software Foundation; either version 3, or (at your option)
     10 // any later version.
     11 
     12 // This library is distributed in the hope that it will be useful,
     13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
     14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     15 // GNU General Public License for more details.
     16 
     17 // Under Section 7 of GPL version 3, you are granted additional
     18 // permissions described in the GCC Runtime Library Exception, version
     19 // 3.1, as published by the Free Software Foundation.
     20 
     21 // You should have received a copy of the GNU General Public License and
     22 // a copy of the GCC Runtime Library Exception along with this program;
     23 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
     24 // <http://www.gnu.org/licenses/>.
     25 
     26 //
     27 // ISO C++ 14882: 19.1  Exception classes
     28 //
     29 
     30 /** @file exception_defines.h
     31  *  This is a Standard C++ Library header.
     32  */
     33 
     34 #ifndef _EXCEPTION_DEFINES_H
     35 #define _EXCEPTION_DEFINES_H 1
     36 
     37 #ifndef __EXCEPTIONS
     38 // Iff -fno-exceptions, transform error handling code to work without it.
     39 # define __try      if (true)
     40 # define __catch(X) if (false)
     41 # define __throw_exception_again
     42 #else
     43 // Else proceed normally.
     44 # define __try      try
     45 # define __catch(X) catch(X)
     46 # define __throw_exception_again throw
     47 #endif
     48 
     49 #endif
     50