1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/ossrv/ossrv_pub/boost_apis/boost/optional/optional_io.hpp	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,84 @@
     1.4 +// Copyright (C) 2005, Fernando Luis Cacciola Carballal.
     1.5 +//
     1.6 +// Use, modification, and distribution is subject to the Boost Software
     1.7 +// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
     1.8 +// http://www.boost.org/LICENSE_1_0.txt)
     1.9 +//
    1.10 +// See http://www.boost.org/lib/optional for documentation.
    1.11 +//
    1.12 +// You are welcome to contact the author at:
    1.13 +//  fernando_cacciola@hotmail.com
    1.14 +//
    1.15 +#ifndef BOOST_OPTIONAL_OPTIONAL_IO_FLC_19NOV2002_HPP
    1.16 +#define BOOST_OPTIONAL_OPTIONAL_IO_FLC_19NOV2002_HPP
    1.17 +
    1.18 +#if defined __GNUC__
    1.19 +#  if (__GNUC__ == 2 && __GNUC_MINOR__ <= 97) 
    1.20 +#    define BOOST_OPTIONAL_NO_TEMPLATED_STREAMS
    1.21 +#  endif
    1.22 +#endif // __GNUC__
    1.23 +
    1.24 +#if defined BOOST_OPTIONAL_NO_TEMPLATED_STREAMS
    1.25 +#  include <iostream>
    1.26 +#else 
    1.27 +#  include <istream>
    1.28 +#  include <ostream>
    1.29 +#endif  
    1.30 +
    1.31 +
    1.32 +#include "boost/optional/optional.hpp"
    1.33 +#include "boost/utility/value_init.hpp"
    1.34 +
    1.35 +namespace boost
    1.36 +{
    1.37 +
    1.38 +#if defined (BOOST_NO_TEMPLATED_STREAMS)
    1.39 +template<class T>
    1.40 +inline std::ostream& operator<<(std::ostream& out, optional<T> const& v)
    1.41 +#else
    1.42 +template<class CharType, class CharTrait, class T>
    1.43 +inline
    1.44 +std::basic_ostream<CharType, CharTrait>&
    1.45 +operator<<(std::basic_ostream<CharType, CharTrait>& out, optional<T> const& v)
    1.46 +#endif
    1.47 +{
    1.48 +  if ( out.good() )
    1.49 +  {
    1.50 +    if ( !v )
    1.51 +         out << "--" ;
    1.52 +    else out << ' ' << *v ;
    1.53 +  }
    1.54 +
    1.55 +  return out;
    1.56 +}
    1.57 +
    1.58 +#if defined (BOOST_NO_TEMPLATED_STREAMS)
    1.59 +template<class T>
    1.60 +inline std::istream& operator>>(std::istream& in, optional<T>& v)
    1.61 +#else
    1.62 +template<class CharType, class CharTrait, class T>
    1.63 +inline
    1.64 +std::basic_istream<CharType, CharTrait>&
    1.65 +operator>>(std::basic_istream<CharType, CharTrait>& in, optional<T>& v)
    1.66 +#endif
    1.67 +{
    1.68 +  if ( in.good() )
    1.69 +  {
    1.70 +    int d = in.get();
    1.71 +    if ( d == ' ' )
    1.72 +    {
    1.73 +      T x ;
    1.74 +      in >> x;
    1.75 +      v = x ;
    1.76 +    }
    1.77 +    else
    1.78 +      v = optional<T>() ;
    1.79 +  }
    1.80 +
    1.81 +  return in;
    1.82 +}
    1.83 +
    1.84 +} // namespace boost
    1.85 +
    1.86 +#endif
    1.87 +