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[857] | 1 | // Copyright David Abrahams 2005. Distributed under the Boost
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| 2 | // Software License, Version 1.0. (See accompanying
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| 3 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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| 4 | #ifndef BOOST_PARAMETER_AUX_RESULT_OF0_DWA2005511_HPP
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| 5 | # define BOOST_PARAMETER_AUX_RESULT_OF0_DWA2005511_HPP
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| 6 |
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| 7 | # include <boost/utility/result_of.hpp>
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| 8 |
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| 9 | // A metafunction returning the result of invoking a nullary function
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| 10 | // object of the given type.
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| 11 |
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| 12 | #ifndef BOOST_NO_RESULT_OF
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| 13 |
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| 14 | # include <boost/utility/result_of.hpp>
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| 15 | namespace boost { namespace parameter { namespace aux {
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| 16 | template <class F>
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| 17 | struct result_of0 : result_of<F()>
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| 18 | {};
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| 19 |
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| 20 | }}} // namespace boost::parameter::aux_
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| 21 |
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| 22 | #else
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| 23 |
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| 24 | namespace boost { namespace parameter { namespace aux {
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| 25 | template <class F>
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| 26 | struct result_of0
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| 27 | {
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| 28 | typedef typename F::result_type type;
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| 29 | };
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| 30 |
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| 31 | }}} // namespace boost::parameter::aux_
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| 32 |
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| 33 | #endif
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| 34 |
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| 35 |
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| 36 | #endif // BOOST_PARAMETER_AUX_RESULT_OF0_DWA2005511_HPP
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