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2114bfca6c
Note 1: Forwarding functions are specified as a C++14 constexpr since std::forward is not a constexpr within C++11. Note 2: Though I'm not sure why it doesn't compile, some declarations are specified as a C++14 constexpr or non-constexpr. Note 3: Boost.Tuple adaptation and TR1-based tuple implementations are not constexpr.
44 lines
1.2 KiB
C++
44 lines
1.2 KiB
C++
/*=============================================================================
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Copyright (c) 2001-2011 Joel de Guzman
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Copyright (c) 2007
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Distributed under 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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==============================================================================*/
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#if !defined(BOOST_FUSION_COUNT_09162005_0150)
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#define BOOST_FUSION_COUNT_09162005_0150
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#include <boost/fusion/support/config.hpp>
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#include <boost/fusion/algorithm/query/count_if.hpp>
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#include <boost/fusion/algorithm/query/detail/count.hpp>
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#include <boost/fusion/support/is_sequence.hpp>
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#include <boost/utility/enable_if.hpp>
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namespace boost { namespace fusion
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{
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namespace result_of
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{
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template <typename Sequence, typename F>
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struct count
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{
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typedef int type;
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};
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}
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template <typename Sequence, typename T>
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BOOST_CXX14_CONSTEXPR BOOST_FUSION_GPU_ENABLED
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inline typename
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enable_if<
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traits::is_sequence<Sequence>
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, int
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>::type
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count(Sequence const& seq, T const& x)
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{
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detail::count_compare<T> f(x);
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return fusion::count_if(seq, f);
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}
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}}
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#endif
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