lt06.cpp

一、教学目的： 能理解C++中运算符重载的需要性

void f()
{
  try
  {
    g();
  }
 
  catch(Range)
  {
    //...
  }

  catch(Size)
  {
    //...
  }

catch(...)
  {
    //...
  }
}

void g()
{
  h();
}

void h()
{
  try
  {
    h1();
  }

  catch(Size)
  {
    //...
    throw 10;
  }

  catch(Matherr)
  {
    //...
  }
}

void h1()
{
    //...
    throw Size;
   try
   {
    //...
    throw Range;

    h2();
    h3();
   }

   catch(Size)
   {
    //...
    throw;
   }
}

void h2()
{
    //...
    throw Matherr;
}

void h3()
{
    //...
    throw Size;
}