libstdc++-v3/libsupc++/eh_exception.cc

   1 // -*- C++ -*- std::exception implementation.
   2 // Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
   3 // 2003, 2004, 2005, 2006, 2007
   4 // Free Software Foundation
   5 //
   6 // This file is part of GCC.
   7 //
   8 // GCC is free software; you can redistribute it and/or modify
   9 // it under the terms of the GNU General Public License as published by
  10 // the Free Software Foundation; either version 2, or (at your option)
  11 // any later version.
  12 //
  13 // GCC is distributed in the hope that it will be useful,
  14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 // GNU General Public License for more details.
  17 //
  18 // You should have received a copy of the GNU General Public License
  19 // along with GCC; see the file COPYING.  If not, write to
  20 // the Free Software Foundation, 51 Franklin Street, Fifth Floor,
  21 // Boston, MA 02110-1301, USA.
  22
  23 // As a special exception, you may use this file as part of a free software
  24 // library without restriction.  Specifically, if other files instantiate
  25 // templates or use macros or inline functions from this file, or you compile
  26 // this file and link it with other files to produce an executable, this
  27 // file does not by itself cause the resulting executable to be covered by
  28 // the GNU General Public License.  This exception does not however
  29 // invalidate any other reasons why the executable file might be covered by
  30 // the GNU General Public License.
  31
  32 #include "typeinfo"
  33 #include "exception"
  34 #include <cxxabi.h>
  35
  36 std::exception::~exception() throw() { }
  37
  38 std::bad_exception::~bad_exception() throw() { }
  39
  40 abi::__forced_unwind::~__forced_unwind() throw() { }
  41
  42 abi::__foreign_exception::~__foreign_exception() throw() { }
  43
  44 const char*
  45 std::exception::what() const throw()
  46 {
  47   // NB: Another elegant option would be returning typeid(*this).name()
  48   // and not overriding what() in bad_exception, bad_alloc, etc.  In
  49   // that case, however, mangled names would be returned, PR 14493.
  50   return "std::exception";
  51 }
  52
  53 const char*
  54 std::bad_exception::what() const throw()
  55 {
  56   return "std::bad_exception";
  57 }