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Diffstat (limited to '3rdParty/Boost/src/boost/optional')
-rw-r--r-- | 3rdParty/Boost/src/boost/optional/optional_io.hpp | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/optional/optional_io.hpp b/3rdParty/Boost/src/boost/optional/optional_io.hpp new file mode 100644 index 0000000..85a1857 --- /dev/null +++ b/3rdParty/Boost/src/boost/optional/optional_io.hpp @@ -0,0 +1,84 @@ +// Copyright (C) 2005, Fernando Luis Cacciola Carballal. +// +// Use, modification, and distribution is subject to the Boost Software +// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at +// http://www.boost.org/LICENSE_1_0.txt) +// +// See http://www.boost.org/libs/optional for documentation. +// +// You are welcome to contact the author at: +// fernando_cacciola@hotmail.com +// +#ifndef BOOST_OPTIONAL_OPTIONAL_IO_FLC_19NOV2002_HPP +#define BOOST_OPTIONAL_OPTIONAL_IO_FLC_19NOV2002_HPP + +#if defined __GNUC__ +# if (__GNUC__ == 2 && __GNUC_MINOR__ <= 97) +# define BOOST_OPTIONAL_NO_TEMPLATED_STREAMS +# endif +#endif // __GNUC__ + +#if defined BOOST_OPTIONAL_NO_TEMPLATED_STREAMS +# include <iostream> +#else +# include <istream> +# include <ostream> +#endif + + +#include "boost/optional/optional.hpp" +#include "boost/utility/value_init.hpp" + +namespace boost +{ + +#if defined (BOOST_NO_TEMPLATED_STREAMS) +template<class T> +inline std::ostream& operator<<(std::ostream& out, optional<T> const& v) +#else +template<class CharType, class CharTrait, class T> +inline +std::basic_ostream<CharType, CharTrait>& +operator<<(std::basic_ostream<CharType, CharTrait>& out, optional<T> const& v) +#endif +{ + if ( out.good() ) + { + if ( !v ) + out << "--" ; + else out << ' ' << *v ; + } + + return out; +} + +#if defined (BOOST_NO_TEMPLATED_STREAMS) +template<class T> +inline std::istream& operator>>(std::istream& in, optional<T>& v) +#else +template<class CharType, class CharTrait, class T> +inline +std::basic_istream<CharType, CharTrait>& +operator>>(std::basic_istream<CharType, CharTrait>& in, optional<T>& v) +#endif +{ + if ( in.good() ) + { + int d = in.get(); + if ( d == ' ' ) + { + T x ; + in >> x; + v = x ; + } + else + v = optional<T>() ; + } + + return in; +} + +} // namespace boost + +#endif + |