//----------------------------------------------------------------------------
// Copyright (C) 2013-2015 Fabrice HARROUET (ENIB)
//
// Permission to use, copy, modify, distribute and sell this software
// and its documentation for any purpose is hereby granted without fee,
// provided that the above copyright notice appear in all copies and
// that both that copyright notice and this permission notice appear
// in supporting documentation.
// The author makes no representations about the suitability of this
// software for any purpose.
// It is provided "as is" without express or implied warranty.
//----------------------------------------------------------------------------

using System;

public class Test
{
public static
void
Main(string[] args)
  {
  int i;
  i=int.MaxValue;
  Console.WriteLine("~~~~ default ~~~~");
  try
    {
    Console.WriteLine("{0}+1 --> {1}",i,i+1);
    }
  catch(Exception e)
    {
    Console.WriteLine("!!! Exception: {0}",e);
    }
  checked
    {
    i=int.MaxValue;
    Console.WriteLine("~~~~ checked ~~~~");
    try
      {
      Console.WriteLine("{0}+1 --> {1}",i,i+1);
      }
    catch(Exception e)
      {
      Console.WriteLine("!!! Exception: {0}",e);
      }
    Console.WriteLine("~~~~ unchecked inside checked ~~~~");
    i=int.MaxValue;
    unchecked
      {
      try
        {
        Console.WriteLine("{0}+1 --> {1}",i,i+1);
        }
      catch(Exception e)
        {
        Console.WriteLine("!!! Exception: {0}",e);
        }
      }
    }
  }
}

//----------------------------------------------------------------------------