63e88f80
 Hu Chunming
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#ifndef BOOST_MPL_REPLACE_IF_HPP_INCLUDED
#define BOOST_MPL_REPLACE_IF_HPP_INCLUDED
// Copyright Aleksey Gurtovoy 2000-2004
// Copyright John R. Bandela 2000-2002
// 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.
// $Id$
// $Date$
// $Revision$
#include <boost/mpl/transform.hpp>
#include <boost/mpl/apply.hpp>
#include <boost/mpl/if.hpp>
#include <boost/mpl/aux_/inserter_algorithm.hpp>
#include <boost/mpl/aux_/config/forwarding.hpp>
namespace boost { namespace mpl {
namespace aux {
template< typename Predicate, typename T >
struct replace_if_op
{
template< typename U > struct apply
#if !defined(BOOST_MPL_CFG_NO_NESTED_FORWARDING)
: if_<
typename apply1<Predicate,U>::type
, T
, U
>
{
#else
{
typedef typename if_<
typename apply1<Predicate,U>::type
, T
, U
>::type type;
#endif
};
};
template<
typename Sequence
, typename Predicate
, typename T
, typename Inserter
>
struct replace_if_impl
: transform1_impl<
Sequence
, protect< aux::replace_if_op<Predicate,T> >
, Inserter
>
{
};
template<
typename Sequence
, typename Predicate
, typename T
, typename Inserter
>
struct reverse_replace_if_impl
: reverse_transform1_impl<
Sequence
, protect< aux::replace_if_op<Predicate,T> >
, Inserter
>
{
};
} // namespace aux
BOOST_MPL_AUX_INSERTER_ALGORITHM_DEF(4, replace_if)
}}
#endif // BOOST_MPL_REPLACE_IF_HPP_INCLUDED
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