#ifndef SSTREAM_INCLUDED
#define SSTREAM_INCLUDED


// ----------------------------------------------------------------------
//
// sstream
//
// History:
//   28-Oct-1997  WEB  Initial draft, adapted from code in "Simultaneous
//     Support for KAI C++ and GNU C++ in Source Code" by Rob Kennedy,
//     revised 23-Sep-1997
//   29-Oct-1997  WEB  Included fix for GNU C++ bug
//   04-Nov-1997  WEB  Renamed; removed using statements; included
//     additional code guards; indented
//   13-Nov-1997  WEB  Renamed
//   14-Feb-2000  WEB  Incorporated ISOcxx compatibility
//   19-Mar-2003  MSF  Conditionalized the replacement inclusion on
//                     CLHEP's replacement NOT being in 
// ----------------------------------------------------------------------


// ---  ISOcxx compatibility:

#if defined ISOCXX__ISOCXX

  #ifndef ZMENVIRONMENT_H
    #include "ZMutility/ZMenvironment.h"
  #endif  // ZMENVIRONMENT_H
  
  #include <sstream>
  
  
// ---  original code:

#else  // ! defined ISOCXX__ISOCXX

  #ifndef ZMENVIRONMENT_H
    #include "ZMutility/ZMenvironment.h"
  #endif  // ZMENVIRONMENT_H


  #ifdef ZM_STD_sstream
    #ifndef IOSFWD_INCLUDED
    #define IOSFWD_INCLUDED
      #include <iosfwd>
        // declare classes
    #endif  // IOSFWD_INCLUDED

    #include <sstream>

  #elif defined(__GNUG__)||defined(DEFECT_SSTREAM)
    // only GNU C++ seems to have this flaw

    #ifndef HEP_SSTREAM_H // -- if this is defined, then CLHEP/config/sstream
    	    		 //     has inserted its own (conflicting) fix!

      #ifndef STRSTREAM_INCLUDED
        #define STRSTREAM_INCLUDED
        #include <strstream.h>
      #endif  // STRSTREAM_INCLUDED
	     
      class ostringstream : public ostrstream {
      public:
	string str() {
          *(this) << '\0';	// ugly trick to eliminate trailing garbage
          return string( ostrstream::str() );
	}
      };
    
    #endif  // HEP_SSTREAM_H

  #else
    #define ostringstream ostrstream
      // trick to allow use of "ostringstream" in source

    #ifndef STRSTREAM_INCLUDED
    #define STRSTREAM_INCLUDED
      #include <strstream.h>
    #endif  // STRSTREAM_INCLUDED

  #endif  // ZM_STD_sstream
  
  
#endif  // ISOCXX__ISOCXX


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


#endif  // SSTREAM_INCLUDED