boost/format/detail/msvc_disambiguater.hpp
// ----------------------------------------------------------------------------
// msvc_disambiguater.hpp : msvc workarounds. (for put_{head|last} overloads)
// the trick was described in boost's list by Aleksey Gurtovoy
// ----------------------------------------------------------------------------
// Copyright Samuel Krempp 2003. Use, modification, and distribution are
// 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/format for library home page
// ----------------------------------------------------------------------------
#ifndef BOOST_MSVC_DISAMBIGUATER_HPP
#define BOOST_MSVC_DISAMBIGUATER_HPP
#if BOOST_WORKAROUND( BOOST_MSVC, <= 1300) || \
BOOST_WORKAROUND(__DECCXX_VER, BOOST_TESTED_AT(60590042))
// this whole header is specifically for msvc up to 7.0
#include <boost/format/group.hpp>
#include <ostream>
namespace boost {
namespace io {
namespace detail {
template< class Ch, class Tr, class T >
struct disambiguater
{
template< typename U >
static void put_head(BOOST_IO_STD basic_ostream<Ch, Tr>& os, group1<U> const& x, long)
{
os << group_head(x.a1_);
}
static void put_head(BOOST_IO_STD basic_ostream<Ch, Tr>& os, T const& x, int)
{
}
template< typename U >
static void put_last(BOOST_IO_STD basic_ostream<Ch, Tr>& os, group1<U> const& x, long)
{
os << group_last(x.a1_);
}
static void put_last(BOOST_IO_STD basic_ostream<Ch, Tr>& os, T const& x, int)
{
os << x;
}
};
} // namespace detail
} // namespace io
} // namespace boost
#endif // -BOOST_MSVC
#endif // -BOOST_MSVC_DISAMBIGUATER_HPP
