boost/format/detail/msvc_disambiguater.hpp
// -*- C++ -*-
// Boost general library 'format' ---------------------------
// See http://www.boost.org for updates, documentation, and revision history.
// (C) Samuel Krempp 2001
// krempp@crans.ens-cachan.fr
// Permission to copy, use, modify, sell and
// distribute this software is granted provided this copyright notice appears
// in all copies. This software is provided "as is" without express or implied
// warranty, and with no claim as to its suitability for any purpose.
// ideas taken from R�diger Loos's format class
// and Karl Nelson's ofstream
// ----------------------------------------------------------------------------
// msvc_disambiguater.hpp : msvc workarounds. (for put_{head|last} overloads)
// the trick was described in boost's list by Aleksey Gurtovoy
// ----------------------------------------------------------------------------
#ifndef BOOST_MSVC_DISAMBIGUATER_HPP
#define BOOST_MSVC_DISAMBIGUATER_HPP
#if BOOST_WORKAROUND( BOOST_MSVC, <= 1300) // this whole header is specifically for msvc
#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
