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
   3 // Free Software Foundation
   4 //
   5 // This file is part of GNU CC.
   6 //
   7 // GNU CC 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 // GNU CC 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 GNU CC; 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 /* The current installed user handlers.  */
  40 std::terminate_handler __cxxabiv1::__terminate_handler = std::abort;
  41 std::unexpected_handler __cxxabiv1::__unexpected_handler = std::terminate;
  42
  43 void
  44 __cxxabiv1::__terminate (std::terminate_handler handler)
  45 {
  46   try {
  47     handler ();
  48     std::abort ();
  49   } catch (...) {
  50     std::abort ();
  51   }
  52 }
  53
  54 void
  55 std::terminate ()
  56 {
  57   __terminate (__terminate_handler);
  58 }
  59
  60 void
  61 __cxxabiv1::__unexpected (std::unexpected_handler handler)
  62 {
  63   handler();
  64   std::terminate ();
  65 }
  66
  67 void
  68 std::unexpected ()
  69 {
  70   __unexpected (__unexpected_handler);
  71 }
  72
  73 std::terminate_handler
  74 std::set_terminate (std::terminate_handler func) throw()
  75 {
  76   std::terminate_handler old = __terminate_handler;
  77   __terminate_handler = func;
  78   return old;
  79 }
  80
  81 std::unexpected_handler
  82 std::set_unexpected (std::unexpected_handler func) throw()
  83 {
  84   std::unexpected_handler old = __unexpected_handler;
  85   __unexpected_handler = func;
  86   return old;
  87 }