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Diffstat (limited to 'boost/fusion/support/deduce_sequence.hpp')
-rw-r--r-- | boost/fusion/support/deduce_sequence.hpp | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/boost/fusion/support/deduce_sequence.hpp b/boost/fusion/support/deduce_sequence.hpp new file mode 100644 index 0000000000..ce02a3cd0d --- /dev/null +++ b/boost/fusion/support/deduce_sequence.hpp @@ -0,0 +1,52 @@ +/*============================================================================= + Copyright (c) 2007 Tobias Schwinger + + Use modification and distribution are subject to the Boost Software + License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at + http://www.boost.org/LICENSE_1_0.txt). +==============================================================================*/ + +#if !defined(BOOST_FUSION_SUPPORT_DEDUCE_SEQUENCE_HPP_INCLUDED) +#define BOOST_FUSION_SUPPORT_DEDUCE_SEQUENCE_HPP_INCLUDED + +#include <boost/fusion/support/deduce.hpp> +#include <boost/fusion/container/vector/convert.hpp> +#include <boost/fusion/view/transform_view.hpp> +#include <boost/config.hpp> + + +namespace boost { namespace fusion { namespace traits +{ + template <class Sequence> struct deduce_sequence; + + namespace detail + { + struct deducer + { + template <typename Sig> + struct result; + + template <class Self, typename T> + struct result< Self(T) > + : fusion::traits::deduce<T> + { }; + + // never called, but needed for decltype-based result_of (C++0x) +#ifndef BOOST_NO_RVALUE_REFERENCES + template <typename T> + typename result< deducer(T) >::type + operator()(T&&) const; +#endif + }; + } + + template <class Sequence> + struct deduce_sequence + : result_of::as_vector< + fusion::transform_view<Sequence, detail::deducer> > + { }; + +}}} + +#endif + |