// ---------------------------------------------------------------------------- // 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