[857] | 1 | // ----------------------------------------------------------------------------
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| 2 | // msvc_disambiguater.hpp : msvc workarounds. (for put_{head|last} overloads)
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| 3 | // the trick was described in boost's list by Aleksey Gurtovoy
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| 4 | // ----------------------------------------------------------------------------
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| 5 |
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| 6 | // Copyright Samuel Krempp 2003. Use, modification, and distribution are
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| 7 | // subject to the Boost Software License, Version 1.0. (See accompanying
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| 8 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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| 9 |
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| 10 | // see http://www.boost.org/libs/format for library home page
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| 11 |
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| 12 | // ----------------------------------------------------------------------------
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| 13 |
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| 14 | #ifndef BOOST_MSVC_DISAMBIGUATER_HPP
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| 15 | #define BOOST_MSVC_DISAMBIGUATER_HPP
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| 16 |
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| 17 | #if BOOST_WORKAROUND( BOOST_MSVC, <= 1300) || \
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| 18 | BOOST_WORKAROUND(__DECCXX_VER, BOOST_TESTED_AT(60590042))
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| 19 | // this whole header is specifically for msvc up to 7.0
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| 20 |
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| 21 | #include <boost/format/group.hpp>
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| 22 | #include <ostream>
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| 23 |
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| 24 | namespace boost {
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| 25 | namespace io {
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| 26 | namespace detail {
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| 27 |
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| 28 | template< class Ch, class Tr, class T >
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| 29 | struct disambiguater
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| 30 | {
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| 31 | template< typename U >
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| 32 | static void put_head(BOOST_IO_STD basic_ostream<Ch, Tr>& os, group1<U> const& x, long)
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| 33 | {
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| 34 | os << group_head(x.a1_);
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| 35 | }
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| 36 | static void put_head(BOOST_IO_STD basic_ostream<Ch, Tr>& os, T const& x, int)
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| 37 | {
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| 38 | }
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| 39 | template< typename U >
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| 40 | static void put_last(BOOST_IO_STD basic_ostream<Ch, Tr>& os, group1<U> const& x, long)
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| 41 | {
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| 42 | os << group_last(x.a1_);
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| 43 | }
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| 44 | static void put_last(BOOST_IO_STD basic_ostream<Ch, Tr>& os, T const& x, int)
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| 45 | {
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| 46 | os << x;
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| 47 | }
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| 48 | };
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| 49 |
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| 50 | } // namespace detail
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| 51 | } // namespace io
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| 52 | } // namespace boost
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| 53 |
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| 54 | #endif // -BOOST_MSVC
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| 55 |
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| 56 | #endif // -BOOST_MSVC_DISAMBIGUATER_HPP
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