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
   3 // Free Software Foundation
   4 //
   5 // This file is part of GCC.
   6 //
   7 // GCC is free software; you can redistribute it and/or modify
   8 // it under the terms of the GNU General Public License as published by
   9 // the Free Software Foundation; either version 2, or (at your option)
  10 // any later version.
  11 //
  12 // GCC 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 // You should have received a copy of the GNU General Public License
  18 // along with GCC; see the file COPYING.  If not, write to
  19 // the Free Software Foundation, 59 Temple Place - Suite 330,
  20 // Boston, MA 02111-1307, USA.
  21
  22 // As a special exception, you may use this file as part of a free software
  23 // library without restriction.  Specifically, if other files instantiate
  24 // templates or use macros or inline functions from this file, or you compile
  25 // this file and link it with other files to produce an executable, this
  26 // file does not by itself cause the resulting executable to be covered by
  27 // the GNU General Public License.  This exception does not however
  28 // invalidate any other reasons why the executable file might be covered by
  29 // the GNU General Public License.
  30
  31 #include "typeinfo"
  32 #include "exception"
  33 #include <cstdlib>
  34 #include "unwind-cxx.h"
  35 #include "exception_defines.h"
  36
  37 using namespace __cxxabiv1;
  38
  39 void
  40 __cxxabiv1::__terminate (std::terminate_handler handler)
  41 {
  42   try {
  43     handler ();
  44     std::abort ();
  45   } catch (...) {
  46     std::abort ();
  47   }
  48 }
  49
  50 void
  51 std::terminate ()
  52 {
  53   __terminate (__terminate_handler);
  54 }
  55
  56 void
  57 __cxxabiv1::__unexpected (std::unexpected_handler handler)
  58 {
  59   handler();
  60   std::terminate ();
  61 }
  62
  63 void
  64 std::unexpected ()
  65 {
  66   __unexpected (__unexpected_handler);
  67 }
  68
  69 std::terminate_handler
  70 std::set_terminate (std::terminate_handler func) throw()
  71 {
  72   std::terminate_handler old = __terminate_handler;
  73   __terminate_handler = func;
  74   return old;
  75 }
  76
  77 std::unexpected_handler
  78 std::set_unexpected (std::unexpected_handler func) throw()
  79 {
  80   std::unexpected_handler old = __unexpected_handler;
  81   __unexpected_handler = func;
  82   return old;
  83 }