58 lines
1.6 KiB
C++
58 lines
1.6 KiB
C++
|
/*
|
||
|
|
* Copyright Andrey Semashev 2007 - 2015.
|
||
|
|
* 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)
|
||
|
|
*/
|
||
|
|
/*!
|
||
|
|
* \file is_ostream.hpp
|
||
|
|
* \author Andrey Semashev
|
||
|
|
* \date 05.07.2015
|
||
|
|
*
|
||
|
|
* \brief This header is the Boost.Log library implementation, see the library documentation
|
||
|
|
* at http://www.boost.org/doc/libs/release/libs/log/doc/html/index.html. In this file
|
||
|
|
* internal configuration macros are defined.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef BOOST_LOG_DETAIL_IS_OSTREAM_HPP_INCLUDED_
|
||
|
|
#define BOOST_LOG_DETAIL_IS_OSTREAM_HPP_INCLUDED_
|
||
|
|
|
||
|
|
#include <iosfwd>
|
||
|
|
#include <boost/type_traits/is_base_of.hpp>
|
||
|
|
#include <boost/type_traits/has_left_shift.hpp>
|
||
|
|
#include <boost/log/detail/config.hpp>
|
||
|
|
#include <boost/log/utility/formatting_ostream_fwd.hpp>
|
||
|
|
#include <boost/log/detail/header.hpp>
|
||
|
|
|
||
|
|
#ifdef BOOST_HAS_PRAGMA_ONCE
|
||
|
|
#pragma once
|
||
|
|
#endif
|
||
|
|
|
||
|
|
namespace boost {
|
||
|
|
|
||
|
|
BOOST_LOG_OPEN_NAMESPACE
|
||
|
|
|
||
|
|
namespace aux {
|
||
|
|
|
||
|
|
template< typename T >
|
||
|
|
struct is_ostream
|
||
|
|
{
|
||
|
|
static BOOST_CONSTEXPR_OR_CONST bool value = is_base_of< std::ios_base, T >::value && has_left_shift< T, int >::value;
|
||
|
|
};
|
||
|
|
|
||
|
|
template< typename CharT, typename TraitsT, typename AllocatorT >
|
||
|
|
struct is_ostream< basic_formatting_ostream< CharT, TraitsT, AllocatorT > >
|
||
|
|
{
|
||
|
|
static BOOST_CONSTEXPR_OR_CONST bool value = true;
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace aux
|
||
|
|
|
||
|
|
BOOST_LOG_CLOSE_NAMESPACE // namespace log
|
||
|
|
|
||
|
|
} // namespace boost
|
||
|
|
|
||
|
|
#include <boost/log/detail/footer.hpp>
|
||
|
|
|
||
|
|
#endif // BOOST_LOG_DETAIL_IS_OSTREAM_HPP_INCLUDED_
|