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

   1 // -*- C++ -*- std::terminate, std::unexpected and friends.
   2 // Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2009,
   3 // 2011
   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 3, 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 // Under Section 7 of GPL version 3, you are granted additional
  19 // permissions described in the GCC Runtime Library Exception, version
  20 // 3.1, as published by the Free Software Foundation.
  21
  22 // You should have received a copy of the GNU General Public License and
  23 // a copy of the GCC Runtime Library Exception along with this program;
  24 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  25 // <http://www.gnu.org/licenses/>.
  26
  27 #include "typeinfo"
  28 #include "exception"
  29 #include <cstdlib>
  30 #include "unwind-cxx.h"
  31 #include <bits/exception_defines.h>
  32
  33 using namespace __cxxabiv1;
  34
  35 void
  36 __cxxabiv1::__terminate (std::terminate_handler handler) throw ()
  37 {
  38   __try
  39     {
  40       handler ();
  41       std::abort ();
  42     }
  43   __catch(...)
  44     { std::abort (); }
  45 }
  46
  47 void
  48 std::terminate () throw()
  49 {
  50   __terminate (__terminate_handler);
  51 }
  52
  53 void
  54 __cxxabiv1::__unexpected (std::unexpected_handler handler)
  55 {
  56   handler();
  57   std::terminate ();
  58 }
  59
  60 void
  61 std::unexpected ()
  62 {
  63   __unexpected (__unexpected_handler);
  64 }
  65
  66 std::terminate_handler
  67 std::set_terminate (std::terminate_handler func) throw()
  68 {
  69   std::terminate_handler old = __terminate_handler;
  70   __terminate_handler = func;
  71   return old;
  72 }
  73
  74 std::unexpected_handler
  75 std::set_unexpected (std::unexpected_handler func) throw()
  76 {
  77   std::unexpected_handler old = __unexpected_handler;
  78   __unexpected_handler = func;
  79   return old;
  80 }