| 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(__DECCXX_VER, BOOST_TESTED_AT(60590042)) |
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| 18 | |
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| 19 | #include <boost/format/group.hpp> |
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| 20 | #include <ostream> |
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| 21 | |
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| 22 | namespace boost { |
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| 23 | namespace io { |
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| 24 | namespace detail { |
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| 25 | |
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| 26 | template< class Ch, class Tr, class T > |
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| 27 | struct disambiguater |
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| 28 | { |
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| 29 | template< typename U > |
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| 30 | static void put_head(BOOST_IO_STD basic_ostream<Ch, Tr>& os, group1<U> const& x, long) |
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| 31 | { |
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| 32 | os << group_head(x.a1_); |
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| 33 | } |
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| 34 | static void put_head(BOOST_IO_STD basic_ostream<Ch, Tr>& os, T const& x, int) |
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| 35 | { |
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| 36 | } |
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| 37 | template< typename U > |
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| 38 | static void put_last(BOOST_IO_STD basic_ostream<Ch, Tr>& os, group1<U> const& x, long) |
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| 39 | { |
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| 40 | os << group_last(x.a1_); |
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| 41 | } |
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| 42 | static void put_last(BOOST_IO_STD basic_ostream<Ch, Tr>& os, T const& x, int) |
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| 43 | { |
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| 44 | os << x; |
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| 45 | } |
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| 46 | }; |
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| 47 | |
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| 48 | } // namespace detail |
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| 49 | } // namespace io |
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| 50 | } // namespace boost |
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| 51 | |
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| 52 | #endif // -__DECCXX_VER |
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| 53 | |
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| 54 | #endif // -BOOST_MSVC_DISAMBIGUATER_HPP |
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| 55 | |
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