forked from boostorg/mpl
50 lines
1.5 KiB
C++
50 lines
1.5 KiB
C++
//-----------------------------------------------------------------------------
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// boost mpl/as_sequence.hpp header file
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// See http://www.boost.org for updates, documentation, and revision history.
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//-----------------------------------------------------------------------------
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//
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// Copyright (c) 2002
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// Aleksey Gurtovoy
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//
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// Permission to use, copy, modify, distribute and sell this software
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// and its documentation for any purpose is hereby granted without fee,
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// provided that the above copyright notice appears in all copies and
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// that both the copyright notice and this permission notice appear in
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// supporting documentation. No representations are made about the
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// suitability of this software for any purpose. It is provided "as is"
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// without express or implied warranty.
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#ifndef BOOST_MPL_AS_SEQUENCE_HPP_INCLUDED
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#define BOOST_MPL_AS_SEQUENCE_HPP_INCLUDED
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#include "boost/mpl/is_sequence.hpp"
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#include "boost/mpl/single_view.hpp"
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#include "boost/mpl/if.hpp"
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#include "boost/mpl/aux_/void_spec.hpp"
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#include "boost/mpl/aux_/lambda_support.hpp"
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#include "boost/mpl/aux_/config/eti.hpp"
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namespace boost { namespace mpl {
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template<
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typename BOOST_MPL_AUX_VOID_SPEC_PARAM(T)
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>
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struct as_sequence
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: if_< is_sequence<T>, T, single_view<T> >
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{
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BOOST_MPL_AUX_LAMBDA_SUPPORT(1,as_sequence,(T))
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};
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#if defined(BOOST_MPL_MSVC_ETI_BUG)
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template<> struct as_sequence<int>
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{
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typedef single_view<int> type;
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};
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#endif
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BOOST_MPL_AUX_VOID_SPEC(1, as_sequence)
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}} // namespace boost::mpl
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#endif // BOOST_MPL_AS_SEQUENCE_HPP_INCLUDED
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