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Diffstat (limited to 'ext/boost/mpl/transform.hpp')
| -rw-r--r-- | ext/boost/mpl/transform.hpp | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/ext/boost/mpl/transform.hpp b/ext/boost/mpl/transform.hpp new file mode 100644 index 0000000000..f36720786c --- /dev/null +++ b/ext/boost/mpl/transform.hpp @@ -0,0 +1,145 @@ + +#ifndef BOOST_MPL_TRANSFORM_HPP_INCLUDED +#define BOOST_MPL_TRANSFORM_HPP_INCLUDED + +// Copyright Aleksey Gurtovoy 2000-2004 +// Copyright David Abrahams 2003-2004 +// +// Distributed under 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) +// +// See http://www.boost.org/libs/mpl for documentation. + +// $Id: transform.hpp 49267 2008-10-11 06:19:02Z agurtovoy $ +// $Date: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $ +// $Revision: 49267 $ + +#include <boost/mpl/fold.hpp> +#include <boost/mpl/reverse_fold.hpp> +#include <boost/mpl/pair_view.hpp> +#include <boost/mpl/is_sequence.hpp> +#include <boost/mpl/eval_if.hpp> +#include <boost/mpl/lambda.hpp> +#include <boost/mpl/bind.hpp> +#include <boost/mpl/or.hpp> +#include <boost/mpl/not.hpp> +#include <boost/mpl/aux_/na.hpp> +#include <boost/mpl/aux_/inserter_algorithm.hpp> + +namespace boost { namespace mpl { + +namespace aux { + +template< + typename Seq + , typename Op + , typename In + > +struct transform1_impl + : fold< + Seq + , typename In::state + , bind2< typename lambda< typename In::operation >::type + , _1 + , bind1< typename lambda<Op>::type, _2> + > + > +{ +}; + +template< + typename Seq + , typename Op + , typename In + > +struct reverse_transform1_impl + : reverse_fold< + Seq + , typename In::state + , bind2< typename lambda< typename In::operation >::type + , _1 + , bind1< typename lambda<Op>::type, _2> + > + > +{ +}; + +template< + typename Seq1 + , typename Seq2 + , typename Op + , typename In + > +struct transform2_impl + : fold< + pair_view<Seq1,Seq2> + , typename In::state + , bind2< typename lambda< typename In::operation >::type + , _1 + , bind2< + typename lambda<Op>::type + , bind1<first<>,_2> + , bind1<second<>,_2> + > + > + > +{ +}; + +template< + typename Seq1 + , typename Seq2 + , typename Op + , typename In + > +struct reverse_transform2_impl + : reverse_fold< + pair_view<Seq1,Seq2> + , typename In::state + , bind2< typename lambda< typename In::operation >::type + , _1 + , bind2< typename lambda< Op >::type + , bind1<first<>,_2> + , bind1<second<>,_2> + > + > + > +{ +}; + +} // namespace aux + +BOOST_MPL_AUX_INSERTER_ALGORITHM_DEF(3, transform1) +BOOST_MPL_AUX_INSERTER_ALGORITHM_DEF(4, transform2) + +#define AUX778076_TRANSFORM_DEF(name) \ +template< \ + typename BOOST_MPL_AUX_NA_PARAM(Seq1) \ + , typename BOOST_MPL_AUX_NA_PARAM(Seq2OrOperation) \ + , typename BOOST_MPL_AUX_NA_PARAM(OperationOrInserter) \ + , typename BOOST_MPL_AUX_NA_PARAM(Inserter) \ + > \ +struct name \ +{ \ + typedef typename eval_if< \ + or_< \ + is_na<OperationOrInserter> \ + , is_lambda_expression< Seq2OrOperation > \ + , not_< is_sequence<Seq2OrOperation> > \ + > \ + , name##1<Seq1,Seq2OrOperation,OperationOrInserter> \ + , name##2<Seq1,Seq2OrOperation,OperationOrInserter,Inserter> \ + >::type type; \ +}; \ +BOOST_MPL_AUX_NA_SPEC(4, name) \ +/**/ + +AUX778076_TRANSFORM_DEF(transform) +AUX778076_TRANSFORM_DEF(reverse_transform) + +#undef AUX778076_TRANSFORM_DEF + +}} + +#endif // BOOST_MPL_TRANSFORM_HPP_INCLUDED |