libstdc++-v3/libsupc++/exception_defines.h

   1 // -fno-exceptions Support -*- C++ -*-
   2
   3 // Copyright (C) 2001, 2003 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 2, or (at your option)
   9 // any later version.
  10
  11 // This library 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 along
  17 // with this library; see the file COPYING.  If not, write to the Free
  18 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  19 // USA.
  20
  21 // As a special exception, you may use this file as part of a free software
  22 // library without restriction.  Specifically, if other files instantiate
  23 // templates or use macros or inline functions from this file, or you compile
  24 // this file and link it with other files to produce an executable, this
  25 // file does not by itself cause the resulting executable to be covered by
  26 // the GNU General Public License.  This exception does not however
  27 // invalidate any other reasons why the executable file might be covered by
  28 // the GNU General Public License.
  29
  30 //
  31 // ISO C++ 14882: 19.1  Exception classes
  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 __throw_exception_again throw
  45 #endif
  46
  47 #endif