57 lines
1.7 KiB
C++
57 lines
1.7 KiB
C++
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// ----------------------------------------------------------------------------
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// msvc_disambiguater.hpp : msvc workarounds. (for put_{head|last} overloads)
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// the trick was described in boost's list by Aleksey Gurtovoy
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// ----------------------------------------------------------------------------
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// Copyright Samuel Krempp 2003. Use, modification, and distribution are
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// subject to the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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// see http://www.boost.org/libs/format for library home page
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// ----------------------------------------------------------------------------
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#ifndef BOOST_MSVC_DISAMBIGUATER_HPP
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#define BOOST_MSVC_DISAMBIGUATER_HPP
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#if BOOST_WORKAROUND( BOOST_MSVC, <= 1300) || \
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BOOST_WORKAROUND(__DECCXX_VER, BOOST_TESTED_AT(60590042))
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// this whole header is specifically for msvc up to 7.0
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#include <boost/format/group.hpp>
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#include <ostream>
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namespace boost {
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namespace io {
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namespace detail {
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template< class Ch, class Tr, class T >
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struct disambiguater
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{
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template< typename U >
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static void put_head(BOOST_IO_STD basic_ostream<Ch, Tr>& os, group1<U> const& x, long)
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{
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os << group_head(x.a1_);
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}
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static void put_head(BOOST_IO_STD basic_ostream<Ch, Tr>& os, T const& x, int)
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{
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}
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template< typename U >
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static void put_last(BOOST_IO_STD basic_ostream<Ch, Tr>& os, group1<U> const& x, long)
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{
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os << group_last(x.a1_);
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}
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static void put_last(BOOST_IO_STD basic_ostream<Ch, Tr>& os, T const& x, int)
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{
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os << x;
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}
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};
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} // namespace detail
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} // namespace io
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} // namespace boost
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#endif // -BOOST_MSVC
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#endif // -BOOST_MSVC_DISAMBIGUATER_HPP
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