update source to Ceph Pacific 16.2.2

[ceph.git] / ceph / src / boost / boost / spirit / home / support / detail / sign.hpp

/*=============================================================================
    Copyright (c) 2001-2011 Joel de Guzman
    Copyright (c) 2001-2011 Hartmut Kaiser
    http://spirit.sourceforge.net/

    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 BOOST_SPIRIT_SUPPORT_DETAIL_SIGN_HPP
#define BOOST_SPIRIT_SUPPORT_DETAIL_SIGN_HPP

#if defined(_MSC_VER)
#pragma once
#endif

#include <boost/math/special_functions/sign.hpp>

namespace boost { namespace spirit { namespace detail
{
    template<typename T> 
    inline bool (signbit)(T x)
    {
        return (boost::math::signbit)(x) ? true : false;
    }

    template<typename T> 
    inline T (changesign)(T x)
    {
        return (boost::math::changesign)(x);
    }

}}}

#endif