exception.cc

这个是LINUX下的GDB调度工具的源码

/* This testcase is part of GDB, the GNU debugger.

   Copyright 1997, 1998, 2004 Free Software Foundation, Inc.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
 
   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
   */



// Test file for exception handling support.

#include <iostream>
using namespace std;

int foo (int i)
{
  if (i < 32)
    throw (int) 13;
  else
    return i * 2;
}

extern "C" int bar (int k, unsigned long eharg, int flag);
    
int bar (int k, unsigned long eharg, int flag)
{
  cout << "k is " << k << " eharg is " << eharg << " flag is " << flag << endl;
  return 1;
}

int main()
{
  int j;

  try {
    j = foo (20);
  }
  catch (int x) {
    cout << "Got an except " << x << endl;
  }
  
  try {
    try {
      j = foo (20);
    }
    catch (int x) {
      cout << "Got an except " << x << endl;
      throw;
    }
  }
  catch (int y) {
    cout << "Got an except (rethrown) " << y << endl;
  }

  // Not caught 
  foo (20);
}