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#ifndef BOOST_MPL_FOR_EACH_HPP_INCLUDED
#define BOOST_MPL_FOR_EACH_HPP_INCLUDED
// Copyright Aleksey Gurtovoy 2000-2008
//
// 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.
// $Id$
// $Date$
// $Revision$
#include <boost/mpl/is_sequence.hpp>
#include <boost/mpl/begin_end.hpp>
#include <boost/mpl/apply.hpp>
#include <boost/mpl/bool.hpp>
#include <boost/mpl/next_prior.hpp>
#include <boost/mpl/deref.hpp>
#include <boost/mpl/identity.hpp>
#include <boost/mpl/assert.hpp>
#include <boost/mpl/aux_/config/gpu.hpp>
#include <boost/mpl/aux_/unwrap.hpp>
#include <boost/type_traits/is_same.hpp>
#include <boost/utility/value_init.hpp>
namespace boost { namespace mpl {
namespace aux {
template< bool done = true >
struct for_each_impl
{
template<
typename Iterator
, typename LastIterator
, typename TransformFunc
, typename F
>
BOOST_MPL_CFG_GPU_ENABLED
static void execute(
Iterator*
, LastIterator*
, TransformFunc*
, F
)
{
}
};
template<>
struct for_each_impl<false>
{
template<
typename Iterator
, typename LastIterator
, typename TransformFunc
, typename F
>
BOOST_MPL_CFG_GPU_ENABLED
static void execute(
Iterator*
, LastIterator*
, TransformFunc*
, F f
)
{
typedef typename deref<Iterator>::type item;
typedef typename apply1<TransformFunc,item>::type arg;
// dwa 2002/9/10 -- make sure not to invoke undefined behavior
// when we pass arg.
value_initialized<arg> x;
aux::unwrap(f, 0)(boost::get(x));
typedef typename mpl::next<Iterator>::type iter;
for_each_impl<boost::is_same<iter,LastIterator>::value>
::execute( static_cast<iter*>(0), static_cast<LastIterator*>(0), static_cast<TransformFunc*>(0), f);
}
};
} // namespace aux
// agurt, 17/mar/02: pointer default parameters are necessary to workaround
// MSVC 6.5 function template signature's mangling bug
template<
typename Sequence
, typename TransformOp
, typename F
>
BOOST_MPL_CFG_GPU_ENABLED
inline
void for_each(F f, Sequence* = 0, TransformOp* = 0)
{
BOOST_MPL_ASSERT(( is_sequence<Sequence> ));
typedef typename begin<Sequence>::type first;
typedef typename end<Sequence>::type last;
aux::for_each_impl< boost::is_same<first,last>::value >
::execute(static_cast<first*>(0), static_cast<last*>(0), static_cast<TransformOp*>(0), f);
}
template<
typename Sequence
, typename F
>
BOOST_MPL_CFG_GPU_ENABLED
inline
void for_each(F f, Sequence* = 0)
{
// jfalcou: fully qualifying this call so it doesnt clash with phoenix::for_each
// ons ome compilers -- done on 02/28/2011
boost::mpl::for_each<Sequence, identity<> >(f);
}
}}
#endif // BOOST_MPL_FOR_EACH_HPP_INCLUDED
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