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/*=============================================================================
Copyright (c) 2001-2007 Joel de Guzman
Distributed under 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)
==============================================================================*/
#ifndef PHOENIX_OPERATOR_DETAIL_IO_HPP
#define PHOENIX_OPERATOR_DETAIL_IO_HPP
#include <boost/spirit/home/phoenix/operator/bitwise.hpp>
#include <boost/spirit/home/phoenix/core/reference.hpp>
#include <boost/utility/addressof.hpp>
#include <boost/utility/enable_if.hpp>
#include <iostream>
namespace boost { namespace phoenix { namespace detail
{
typedef char(&no)[1];
typedef char(&yes)[2];
template <typename CharType, typename CharTrait>
yes ostream_test(std::basic_ostream<CharType, CharTrait>*);
no ostream_test(...);
template <typename CharType, typename CharTrait>
yes istream_test(std::basic_istream<CharType, CharTrait>*);
no istream_test(...);
template <typename T>
struct is_ostream
{
static T x;
BOOST_STATIC_CONSTANT(bool,
value = sizeof(detail::ostream_test(boost::addressof(x))) == sizeof(yes));
};
template <typename T>
struct is_istream
{
static T x;
BOOST_STATIC_CONSTANT(bool,
value = sizeof(detail::istream_test(boost::addressof(x))) == sizeof(yes));
};
template <typename T0, typename T1>
struct enable_if_ostream :
enable_if<
detail::is_ostream<T0>
, actor<
typename as_composite<
shift_left_eval
, actor<reference<T0> >
, actor<T1>
>::type
>
>
{};
template <typename T0, typename T1>
struct enable_if_istream :
enable_if<
detail::is_istream<T0>
, actor<
typename as_composite<
shift_right_eval
, actor<reference<T0> >
, actor<T1>
>::type
>
>
{};
typedef std::ios_base& (*iomanip_type)(std::ios_base&);
typedef std::istream& (*imanip_type)(std::istream&);
typedef std::ostream& (*omanip_type)(std::ostream&);
}}}
#endif
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