Mercurial > hg > vamp-build-and-test
diff DEPENDENCIES/generic/include/boost/mpl/advance.hpp @ 16:2665513ce2d3
Add boost headers
author | Chris Cannam |
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date | Tue, 05 Aug 2014 11:11:38 +0100 |
parents | |
children | c530137014c0 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/DEPENDENCIES/generic/include/boost/mpl/advance.hpp Tue Aug 05 11:11:38 2014 +0100 @@ -0,0 +1,76 @@ + +#ifndef BOOST_MPL_ADVANCE_HPP_INCLUDED +#define BOOST_MPL_ADVANCE_HPP_INCLUDED + +// Copyright Aleksey Gurtovoy 2000-2004 +// +// 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: advance.hpp 49267 2008-10-11 06:19:02Z agurtovoy $ +// $Date: 2008-10-10 23:19:02 -0700 (Fri, 10 Oct 2008) $ +// $Revision: 49267 $ + +#include <boost/mpl/advance_fwd.hpp> +#include <boost/mpl/less.hpp> +#include <boost/mpl/negate.hpp> +#include <boost/mpl/long.hpp> +#include <boost/mpl/if.hpp> +#include <boost/mpl/tag.hpp> +#include <boost/mpl/apply_wrap.hpp> +#include <boost/mpl/aux_/advance_forward.hpp> +#include <boost/mpl/aux_/advance_backward.hpp> +#include <boost/mpl/aux_/value_wknd.hpp> +#include <boost/mpl/aux_/na_spec.hpp> +#include <boost/mpl/aux_/nttp_decl.hpp> + +namespace boost { namespace mpl { + +// default implementation for forward/bidirectional iterators +template< typename Tag > +struct advance_impl +{ + template< typename Iterator, typename N > struct apply + { + typedef typename less< N,long_<0> >::type backward_; + typedef typename if_< backward_, negate<N>, N >::type offset_; + + typedef typename if_< + backward_ + , aux::advance_backward< BOOST_MPL_AUX_VALUE_WKND(offset_)::value > + , aux::advance_forward< BOOST_MPL_AUX_VALUE_WKND(offset_)::value > + >::type f_; + + typedef typename apply_wrap1<f_,Iterator>::type type; + }; +}; + + +template< + typename BOOST_MPL_AUX_NA_PARAM(Iterator) + , typename BOOST_MPL_AUX_NA_PARAM(N) + > +struct advance + : advance_impl< typename tag<Iterator>::type > + ::template apply<Iterator,N> +{ +}; + +template< + typename Iterator + , BOOST_MPL_AUX_NTTP_DECL(long, N) + > +struct advance_c + : advance_impl< typename tag<Iterator>::type > + ::template apply<Iterator,long_<N> > +{ +}; + +BOOST_MPL_AUX_NA_SPEC(2, advance) + +}} + +#endif // BOOST_MPL_ADVANCE_HPP_INCLUDED