//
// This is example code from Chapter 10.6 "I/O error handling" of
// "Programming -- Principles and Practice Using C++" by Bjarne Stroustrup
//

#include "std_lib_facilities.h"

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

void fill_vector(istream& ist, vector<int>& v, char terminator)
// read integers from ist into v until we reach eof() or terminator
{
   for (int i; ist>>i; ) v.push_back(i);
   if (ist.eof()) return;    // fine: we found the end of file

   if (ist.bad()) error("ist is bad"); // stream corrupted; let's get out of here!

   if (ist.fail()) {   // clean up the mess as best we can and report the problem
      ist.clear();    // clear stream state,
      // so that we can look for terminator
      char c;
      ist>>c;         // read a character, hopefully terminator
      if (c != terminator) { // unexpected character
         ist.unget();       // put that character back
         ist.clear(ios_base::failbit); // set the state to fail()
      }
   }
}

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

int main()
   try
      {
         vector<int> v;
         fill_vector(cin, v, '*');
      }
   catch (exception& e) {
      cerr << "error: " << e.what() << '\n'; 
      return 1;
   }
   catch (...) {
      cerr << "Oops: unknown exception!\n"; 
      return 2;
   }

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